CN115669340A - Prediction method and system for potash fertilizer amount suitable for northern oat production - Google Patents

Abstract

The present invention relates to the technical field of fertilizer application forecasting, a method and system for forecasting the amount of potassium fertilizer suitable for northern oat production, comprising: dividing the ^12hm2 oat test field into 12 equal parts, and combining four groups of potassium fertilizer application amounts with three growth cycles of oats, 12 groups of potassium fertilizer application rates were obtained, and 12 groups of potassium fertilizer application rates were applied in 12 test fields respectively, and the oat growth index and yield index values were calculated at the mature stage, and the trends of potassium fertilizer application amount, oat growth index and yield index were drawn after summarization , and construct the function equation to fit the trend chart, obtain the fitting equation of potassium fertilizer application amount and oat growth index and yield index, and substitute oat expected growth index value and output index value into described fitting equation, calculate potassium fertilizer application amount , to complete the prediction of the amount of potassium fertilizer suitable for northern oat production. The invention can solve the problems of lack of scientific decision-making existing in the amount of potash fertilizer applied to the oat field and not closely combined with the actual growth conditions of the oats.

Description

Prediction method and system for potash fertilizer amount suitable for northern oat production

technical field

The invention relates to the technical field of fertilizer application prediction, in particular to a method and system for predicting the amount of potassium fertilizer suitable for northern oat production.

Background technique

The Northeast region plays an important role in ensuring national food security. Oats are one of the important crops in the Northeast. How to increase oat production while avoiding environmental problems such as land desertification, groundwater pollution, and soil acidification caused by high water and fertilizer input is a major issue for the Northeast and the country. A problem that the security bureau needs to solve urgently. Oat is an important grain-forage crop with high nutritional value. Potassium fertilizer is an essential nutrient element for oat growth. At present, the amount of potassium fertilizer applied to oat fields mainly depends on traditional manual experience. The lack of potassium fertilizer concentration, A combination of oat growing season, expected oat growth, and expected yield.

Contents of the invention

The present invention provides a method, device and computer-readable storage medium for predicting the amount of potassium fertilizer suitable for northern oat production. question.

In order to achieve the above object, a method for predicting the amount of potassium fertilizer suitable for northern oat production provided by the invention includes:

The oat test field ^of 12hm is equally divided into 12 test fields, and the same kind of oat is planted in the 12 test fields at the same interval;

Four groups of potassium fertilizer application rates are set, and the four groups of potassium fertilizer application rates are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application rates;

Apply potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and yield index value of 12 test field oats in the oat maturity stage, wherein the growth index is calculated by calculating the oat single plant leaf area Obtained, the yield index is obtained by calculating the unit seed yield of oats;

Summarize the growth index and yield index value of the oats in the 12 test fields, and draw the trend charts of the potassium fertilizer application amount and the oat growth index and yield index in the three growth cycles of the oat;

Construct function equation fitting above-mentioned trend chart, obtain the fitting equation of the potash fertilizer application amount of described oat three growth cycles and oat growth index and yield index;

The oat expected growth index value and yield index value are input into the fitting equation, and the suitable potassium fertilizer application amount of oat is obtained by backward deduction, so as to complete the prediction of the potassium fertilizer amount suitable for northern oat production.

Optionally, four groups of potassium fertilizer application rates are set, and the four groups of potassium fertilizer application rates are combined with three growth cycles of oats to obtain twelve groups of potassium fertilizer application rates for growth cycles, including:

Set the four groups of potassium fertilizer application rates in the oat test field as 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² ;

The oat growth cycle is divided into jointing stage, heading stage, filling stage and maturity stage, and potassium fertilizer is applied in three growth cycles of the jointing stage, heading stage and filling stage respectively;

Combining the four groups of potassium fertilizer application amounts with the three oat growth periods in pairs, the potassium fertilizer application amounts of the twelve groups of growth cycles are obtained in total.

Optionally, the yield index is obtained by calculating the unit seed yield of oat, including:

In the 12 test fields, each harvested 0.5hm ² oat mature crops to obtain mature oat crops;

manually separating the fruits of said mature oat crops to obtain oat seeds;

The oat seeds are dried, weighed and calculated to obtain the yield index of oat unit seed yield.

Optionally, the growth index is obtained by calculating the leaf area of a single oat plant, including:

In the 12 test fields, 10 strains of oats with better growth and uniformity were picked respectively to obtain oat organisms;

The following formula is constructed to calculate the leaf area per plant of the oat organism:

Wherein, S is the single plant leaf area of the oat organism growth index, c _i is the single plant leaf length of the described oat organism, d _i is the single plant leaf width of the described oat organism, and i is the 10 plants oat.

Optionally, the described oat seeds are dried, weighed and calculated to obtain the unit seed yield of oats, including:

The oat seeds are fixed for 30 minutes in a fixing box at 105 degrees Celsius to obtain the fixed oat seeds;

drying the green oat seeds to a constant weight in an oven at 80 degrees Celsius to obtain dried oat seeds;

Utilize balance to weigh the quality of described drying oat seed, obtain oat seed output;

The oat seed yield is input into a pre-built model to calculate the oat seed yield per unit.

Optionally, the summary arranges the growth index and yield index value of the oats in the 12 test fields, and draws the trend charts of the potassium fertilizer application amount and the oat growth index and yield index in the three growth cycles of the oat, including:

According to the three growth cycles of oats, the 12 growth indexes and yield index values are sorted and summarized into 3 groups of growth data sets corresponding to the amount of potassium fertilizer application and the value of the growth index, and 3 groups of yield data sets corresponding to the amount of potassium fertilizer application and the value of the yield index;

Construct three growth-themed plane Cartesian coordinate systems with the potassium fertilizer application amount as the x-axis and the oat growth index as the y-axis;

Respectively depicting the three groups of growth data sets in the three growth subject plane Cartesian coordinate systems to obtain three groups of growth data coordinate points;

Using smooth curves to connect the three groups of growth data coordinate points respectively to obtain three groups of growth trend graphs;

Construct three output-themed plane Cartesian coordinate systems with potassium fertilizer application amount as the x-axis and oat yield index as the y-axis;

Respectively depicting the 3 sets of yield data sets in the 3 yield theme plane Cartesian coordinate systems to obtain 3 sets of yield data coordinate points;

The three groups of output data coordinate points are respectively connected by using smooth curves to obtain three groups of output trend graphs.

Optionally, the construction function equation fits the above-mentioned trend graph, and obtains the fitting equation of the potassium fertilizer application amount and oat growth index and yield index of the three growth cycles of the oat, including:

Construct the following functional equations to fit the three groups of growth trend charts and the three groups of output trend charts:

Wherein, Y _j is the growth index value of the 3 groups of oats and the yield index value of the 3 groups, x _j is the potassium fertilizer application amount of the 3 groups, a _j , b _j and k _j are the coefficients of the functional equation, and j is the The above three growth cycles of oats, the value is 1-3;

Substituting the 3 sets of growth data coordinate points and the 3 sets of output data coordinate points into the functional equation in turn, and calculating the values of 6 sets of _aj , bj _{and kj} ;

Using the values of the 6 groups of a _j , b _j and k _j to replace the a _j , b _j and k _j of the functional equation respectively, obtain 3 fitting equations of the potassium fertilizer application amount and oat growth index, 3 The fitting equation of the potassium fertilizer application amount and the oat yield index.

Optionally, the expected oat growth index value and yield index value are input into the fitting equation, and the suitable potassium fertilizer application amount of oat is obtained by inversion, including:

Input the oat expected growth index value into the fitting equation of the three potassium fertilizer application amounts and the oat growth index respectively, and reversely obtain the appropriate potassium fertilizer application amount for the oat expected growth index value in three growth cycles;

Input the oat expected yield index value into the fitting equation of the three potassium fertilizer application amounts and oat yield index respectively, and reversely obtain the appropriate potassium fertilizer application amount for the oat expected yield index value in the three growth cycles.

Optionally, the input of the oat seed yield into a pre-built model is calculated to obtain the oat unit seed yield, including:

Build the following model to calculate the unit seed yield of oat:

Wherein, M is the oat seed yield per unit of the oat test field, and m is the oat seed yield obtained by weighing with a balance.

In order to solve the problems referred to above, the present invention also provides a kind of potash fertilizer consumption predicting device suitable for northern oat production, and described device comprises:

The test field is divided into planting modules, which are used to divide the oat test field of ^12hm into 12 test fields, and plant oats of the same variety in the 12 test fields at the same interval;

Potassium fertilizer application rate combination module is used to set four groups of potassium fertilizer application rates, and combines the four groups of potassium fertilizer application rates with three growth cycles of oats to obtain twelve groups of potassium fertilizer application rates for growth cycles;

The oat growth index and yield index calculation module is used to apply potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and yield index values of oats in the 12 test fields in the oat maturity stage , where the growth index is obtained by calculating the leaf area of a single oat plant, and the yield index is obtained by calculating the unit seed yield of oat;

The trend chart module is used to summarize the growth index and yield index values of the 12 experimental fields of oats, and draw the trend charts of the potassium fertilizer application amount, oat growth index and yield index of the three growth cycles of the oat;

The function equation fitting module is used to construct the function equation to fit the above-mentioned trend chart, and obtain the fitting equation of the potash fertilizer application amount and oat growth index and yield index of the three growth cycles of the oat;

The potassium fertilizer application amount prediction module is used to input the oat expected growth index value and yield index value into the fitting equation, and reversely obtain the suitable potassium fertilizer application amount of oats, so as to complete the prediction of the potassium fertilizer amount suitable for northern oat production.

In order to solve the above problems, the present invention also provides an electronic device, which includes:

a memory storing at least one instruction; and

The processor executes the instructions stored in the memory to realize the aforementioned method for predicting the amount of potassium fertilizer suitable for northern oat production.

In order to solve the above problems, the present invention also provides a computer-readable storage medium, at least one instruction is stored in the computer-readable storage medium, and the at least one instruction is executed by a processor in the electronic device to realize the above-mentioned Potassium fertilizer application forecast method suitable for northern oat production.

The embodiment of the present invention is to solve the problem described in the background technology, at first the oat test field of ^12hm is divided into 12 test fields equally, and the oat of same kind is planted in described 12 test fields by the same spacing, secondly, four groups of potash fertilizer application rates are set , and the four groups of potassium fertilizer application amounts are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application amounts, and then, according to the twelve groups of growth cycle potassium fertilizer application amounts in the 12 test fields respectively Potassium fertilizer was applied, and the growth index and yield index value of 12 experimental field oats were calculated at the oat maturity stage. The growth index was obtained by calculating the leaf area of a single oat plant, and the yield index was obtained by calculating the unit seed yield of oat. After that, the 12 oats were summarized and arranged The growth index and the output index value of oats in each test field, and draw the trend charts of the potassium fertilizer application amount and oat growth index and yield index of the three growth cycles of the oats, and then construct a function equation to fit the above trend charts, and obtain the described Fitting equations of potassium fertilizer application rate and oat growth index and yield index in three growth cycles of oat. The embodiment of the present invention explores the changes of oat growth index and yield index in different growth cycles of oats with changes in the amount of potassium fertilizer application through field experiments. Fitting, obtaining the fitting equations of potassium fertilizer application amount and oat growth index and yield index in the three growth cycles of oats, which solves the problem that the current oat field potassium fertilizer application amount is not closely combined with the actual growth situation of oats. Finally, in the embodiment of the present invention, the expected growth index value and yield index value of oats are input into the fitting equation, and the suitable potassium fertilizer application amount of oats is obtained by inversion, so as to complete the prediction of potassium fertilizer application amount suitable for oat production in the north, and solve the current potassium fertilizer application amount of oat fields There is a problem of insufficient scientific decision-making. Therefore, the method, device, electronic equipment, and computer-readable storage medium for predicting the amount of potash fertilizer suitable for oat production in the north proposed by the present invention can solve the problem of insufficient scientific decision-making in the amount of potash fertilizer in the current oat field and the lack of close integration with the actual growth situation of oats. question.

Description of drawings

Fig. 1 is the schematic flow sheet of the method for predicting the amount of potassium fertilizer suitable for northern oat production provided by an embodiment of the present invention;

Fig. 2 is a detailed implementation flow diagram of a step in Fig. 1;

Fig. 3 is a detailed implementation flow diagram of another step in Fig. 1;

Fig. 4 is the functional block diagram of the potash fertilizer consumption prediction device suitable for northern oat production provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of an electronic device for implementing the method for predicting the amount of potassium fertilizer suitable for northern oat production provided by an embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The embodiment of the present application provides a method for predicting the amount of potassium fertilizer suitable for northern oat production. The subject of execution of the method for predicting the amount of potassium fertilizer suitable for northern oat production includes, but is not limited to, at least one of electronic devices such as a server and a terminal that can be configured to execute the method provided by the embodiment of the present application. In other words, the method for predicting the amount of potassium fertilizer suitable for northern oat production can be implemented by software or hardware installed in terminal equipment or server equipment. The server includes, but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like.

Referring to FIG. 1 , it is a schematic flowchart of a method for predicting potassium fertilizer usage suitable for northern oat production provided by an embodiment of the present invention. In this embodiment, the method for predicting the amount of potassium fertilizer suitable for northern oat production includes:

S1. The 12hm ² oat test field is equally divided into 12 test fields, and oats of the same variety are planted in the 12 test fields at the same interval.

It should be understood that, in the embodiment of the present invention, 12 kinds of potassium fertilizer application methods can be obtained by combining four groups of potassium fertilizer application amounts with three growth cycles of oats. Therefore, the embodiment of the present invention selects the oat test field of 12hm ² and divides it into 12 equal parts, wherein each equal part of the test field adopts one of 12 kinds of potash fertilizer application methods. It should be explained that, in order to ensure The accuracy of oat growth indicators and yield indicators in each test field was subsequently measured. The same variety of oats should be planted with the same planting spacing in the 12 test fields, and the calculation errors of oat varieties and planting densities on oat growth indicators and yield indicators were eliminated.

S2. Set four groups of potassium fertilizer application amounts, and combine the four groups of potassium fertilizer application amounts with three growth cycles of oats to obtain twelve groups of potassium fertilizer application amounts for growth cycles.

In detail, referring to shown in Figure 2, four groups of potash fertilizer application rates are set, and the four groups of potassium fertilizer application rates are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application rates, including:

S21. Set the four groups of potash fertilizer application rates in the oat test field as 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² respectively;

S22. The oat growth cycle is divided into jointing stage, heading stage, filling stage and maturity stage, and potassium fertilizer is applied in the three growth cycles of the jointing stage, heading stage and filling stage respectively;

S23. Combining the four groups of potassium fertilizer application amounts with the three oat growth periods in pairs to obtain the twelve groups of potassium fertilizer application amounts in total.

It can be understood that, in the embodiment of the present invention, the potassium fertilizer application amounts of the twelve groups of growth cycles obtained by combining the four groups of potassium fertilizer application amounts with the three growth periods of the oat in pairs are: jointing stage 0, jointing stage 50Kg N ·hm ² , jointing stage 100Kg·N·hm ² , jointing stage 150Kg·N·hm ² , heading stage 0, heading stage 50Kg·N·hm ² , heading stage 100Kg·N·hm ² , heading stage 150Kg·N· hm ² , grouting stage 0, grouting stage 50Kg·N·hm ² , grouting stage 100Kg·N·hm ² , grouting stage 150Kg·N·hm ² .

It should be known that the 12 test fields will correspond one-to-one to the amount of potassium fertilizer application in the twelve groups of growth cycles.

S3. Apply potassium fertilizer in the 12 test fields respectively according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and yield index value of the oat in the 12 test fields at the oat maturity stage, wherein the growth index is calculated by calculating the oat single plant The leaf area is obtained, and the yield index is obtained by calculating the unit seed yield of oats.

In detail, as shown in Figure 3, the yield index is obtained by calculating the unit seed yield of oats, including:

S31. Harvesting ^0.5hm2 oat mature crops in each of the 12 test fields to obtain mature oat crops;

S32. Manually separating the fruits of the mature oat crops to obtain oat seeds;

S33. Dry the oat seeds, weigh and calculate the yield index of oat unit seed yield.

At the same time, the growth index among them is obtained by calculating the leaf area of a single oat plant, including:

In the 12 test fields, 10 strains of oats with better growth and uniformity were picked respectively to obtain oat organisms;

The following formula is constructed to calculate the leaf area per plant of the oat organism:

Wherein, S is the single plant leaf area of the oat organism growth index, c _i is the single plant leaf length of the described oat organism, d _i is the single plant leaf width of the described oat organism, and i is the 10 plants oat.

Further, the drying of the oat seeds is weighed and calculated to obtain the unit seed yield of oats, including:

The oat seeds are fixed for 30 minutes in a fixing box at 105 degrees Celsius to obtain the fixed oat seeds;

drying the green oat seeds to a constant weight in an oven at 80 degrees Celsius to obtain dried oat seeds;

Utilize balance to weigh the quality of described drying oat seed, obtain oat seed output;

The oat seed yield is input into a pre-built model to calculate the oat seed yield per unit.

It should be explained that the model for constructing and calculating the unit seed yield of oat is as follows:

Wherein, M is the oat seed yield per unit of the oat test field, and m is the oat seed yield obtained by weighing with a balance.

It should be known that, in the model species for calculating unit seed yield of oat, the coefficient of 0.5 is the area of 0.5hm ² of the mature oat crop harvested in each test field at the oat maturity stage in the embodiment of the present invention.

It should be clear that, in order to reduce the measurement error of the oat growth index single plant leaf area, the embodiment of the present invention picked 10 oats with good growth and uniformity in each test field, and calculated the average single plant leaf area of the 10 oats. Improve measurement accuracy.

S4. Summarize the growth index and yield index values of the oats in the 12 experimental fields, and draw the trend charts of the potassium fertilizer application amount and the oat growth index and yield index in the three growth cycles of the oats.

In-depth, the summarization and arrangement of the growth index and yield index values of the 12 experimental fields of oats, and drawing the trend charts of the potassium fertilizer application amount, oat growth index and yield index for the three growth cycles of the oat, including:

According to the three growth cycles of oats, the 12 growth indexes and yield index values are sorted and summarized into 3 groups of growth data sets corresponding to the amount of potassium fertilizer application and the value of the growth index, and 3 groups of yield data sets corresponding to the amount of potassium fertilizer application and the value of the yield index;

Construct three growth-themed plane Cartesian coordinate systems with the potassium fertilizer application amount as the x-axis and the oat growth index as the y-axis;

Respectively depicting the three groups of growth data sets in the three growth subject plane Cartesian coordinate systems to obtain three groups of growth data coordinate points;

Using smooth curves to connect the three groups of growth data coordinate points respectively to obtain three groups of growth trend graphs;

Construct three output-themed plane Cartesian coordinate systems with potassium fertilizer application amount as the x-axis and oat yield index as the y-axis;

Respectively depicting the 3 sets of yield data sets in the 3 yield theme plane Cartesian coordinate systems to obtain 3 sets of yield data coordinate points;

The three groups of output data coordinate points are respectively connected by using smooth curves to obtain three groups of output trend graphs.

It should be explained that the twelve groups of growth cycle potash fertilizer application rates can be divided into 3 groups according to the three growth cycles of oats, i.e. jointing stage, heading stage, and filling stage. The first group is: jointing stage potassium fertilizer application amount 0, 50Kg ·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² ; the second group is: potassium fertilizer application amount at heading stage 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N· hm ² ; the third group is: the amount of potassium fertilizer applied during the filling period is 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² . Each potash fertilizer application amount in each growth cycle all corresponds to a growth index value and a yield index value of oats, so there are three growth cycles in the embodiment of the present invention. According to the three growth cycles, the 12 growth indexes and The yield index values are sorted into the growth data sets corresponding to the 3 groups of potassium fertilizer application amount and the growth index value, and the yield data sets corresponding to the 3 groups of potassium fertilizer application amount and the yield index value. Each group of growth data sets contains 4 potassium fertilizer application rates of 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² and 4 growth index values, and the output data of each group The set contains 4 potassium fertilizer application rates of 0, 50Kg·N·hm ² , 100Kg·N·hm ² , 150Kg·N·hm ² and 4 yield index values.

It should be known that each set of growth data coordinate points and each set of output data coordinate points contain 4 coordinate points, and by connecting the 4 coordinate points, a growth trend graph and a yield trend graph can be obtained.

S5. Construct a function equation to fit the above trend graph, and obtain a fitting equation between the amount of potassium fertilizer applied in the three growth cycles of the oat and the growth index and yield index of the oat.

Specifically, the construction function equation fits the above-mentioned trend graph, and obtains the fitting equation of the potassium fertilizer application amount and oat growth index and yield index of the three growth cycles of the oat, including:

Construct the following functional equations to fit the three groups of growth trend charts and the three groups of output trend charts:

Wherein, Y _j is the growth index value of the 3 groups of oats and the yield index value of the 3 groups, x _j is the potassium fertilizer application amount of the 3 groups, a _j , b _j and k _j are the coefficients of the functional equation, and j is the The above three growth cycles of oats, the value is 1-3;

Substituting the 3 sets of growth data coordinate points and the 3 sets of output data coordinate points into the functional equation in turn, and calculating the values of 6 sets of _aj , bj _{and kj} ;

Using the values of the 6 groups of a _j , b _j and k _j to replace the a _j , b _j and k _j of the functional equation respectively, obtain 3 fitting equations of the potassium fertilizer application amount and oat growth index, 3 The fitting equation of the potassium fertilizer application amount and the oat yield index.

It should be understood that each group of trend charts includes 4 coordinate points, and the values of a _j , b _j and k _j can be obtained by substituting the 4 coordinate points into the functional equation.

It should be known that in the embodiment of the present invention, 3 groups of growth trend graphs and 3 groups of yield trend graphs have been drawn, and by constructing the functional equations to fit 6 groups of trend graphs, 6 fitting equations can be obtained, which are respectively the oat jointing stage The fitting equation of potassium fertilizer application amount and growth index; the fitting equation of potassium fertilizer application amount and growth index in oat heading stage; the fitting equation of potassium fertilizer application amount and growth index in oat filling stage; the fitting equation of potassium fertilizer application amount and yield index in oat jointing stage; oat The fitting equation of potassium fertilizer application amount and yield index at heading stage; the fitting equation of potassium fertilizer application amount and yield index at oat filling stage.

S6. Input the oat expected growth index value and yield index value into the fitting equation, calculate the suitable potassium fertilizer application amount of oats backwards, and complete the prediction of the potassium fertilizer application amount suitable for northern oat production.

In detail, the expected growth index value and yield index value of oats are input into the fitting equation, and the suitable potassium fertilizer application amount of oats is obtained backwardly, including:

Input the oat expected growth index value into the fitting equation of the three potassium fertilizer application amounts and the oat growth index respectively, and reversely obtain the appropriate potassium fertilizer application amount for the oat expected growth index value in three growth cycles;

Input the oat expected yield index value into the fitting equation of the three potassium fertilizer application amounts and oat yield index respectively, and reversely obtain the appropriate potassium fertilizer application amount for the oat expected yield index value in the three growth cycles.

Exemplarily, the value of expected single oat leaf area is input into the fitting equation of oat potassium fertilizer application amount and growth index at jointing stage, oat heading stage potassium fertilizer application amount and growth index fitting equation, oat filling stage potassium fertilizer application amount and growth index fitting equation The fitting equation can be reversed to calculate the appropriate amount of potassium fertilizer that should be applied in each growth cycle of oats.

The embodiment of the present invention is to solve the problem described in the background technology, at first the oat test field of ^12hm is divided into 12 test fields equally, and the oat of same kind is planted in described 12 test fields by the same spacing, secondly, four groups of potash fertilizer application rates are set , and the four groups of potassium fertilizer application amounts are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application amounts, and then, according to the twelve groups of growth cycle potassium fertilizer application amounts in the 12 test fields respectively Potassium fertilizer was applied, and the growth index and yield index value of 12 experimental field oats were calculated at the oat maturity stage. The growth index was obtained by calculating the leaf area of a single oat plant, and the yield index was obtained by calculating the unit seed yield of oat. After that, the 12 oats were summarized and arranged The growth index and the output index value of oats in each test field, and draw the trend charts of the potassium fertilizer application amount and oat growth index and yield index of the three growth cycles of the oats, and then construct a function equation to fit the above trend charts, and obtain the described Fitting equations of potassium fertilizer application rate and oat growth index and yield index in three growth cycles of oat. The embodiment of the present invention explores the changes of oat growth index and yield index in different growth cycles of oats with changes in the amount of potassium fertilizer application through field experiments. Fitting, obtaining the fitting equations of potassium fertilizer application amount and oat growth index and yield index in the three growth cycles of oats, which solves the problem that the current oat field potassium fertilizer application amount is not closely combined with the actual growth situation of oats. Finally, in the embodiment of the present invention, the expected growth index value and yield index value of oats are input into the fitting equation, and the suitable potassium fertilizer application amount of oats is obtained by inversion, so as to complete the prediction of potassium fertilizer application amount suitable for oat production in the north, and solve the current potassium fertilizer application amount of oat fields There is a problem of insufficient scientific decision-making. Therefore, the method, device, electronic equipment, and computer-readable storage medium for predicting the amount of potash fertilizer suitable for oat production in the north proposed by the present invention can solve the problem of insufficient scientific decision-making in the amount of potash fertilizer in the current oat field and the lack of close integration with the actual growth situation of oats. question.

As shown in FIG. 4 , it is a functional block diagram of a potash fertilizer consumption prediction device suitable for northern oat production provided by an embodiment of the present invention.

The device 100 for predicting the amount of potassium fertilizer suitable for northern oat production according to the present invention can be installed in electronic equipment. According to the function realized, the potassium fertilizer consumption prediction device 100 suitable for northern oat production can include a test field division planting module 101, a potash fertilizer application amount combination module 102, an oat growth index and yield index calculation module 103, a trend chart drawing module 104, and a function equation Fitting module 105 and potash fertilizer application amount prediction module 106. The module in the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by the processor of the electronic device and can complete fixed functions, and are stored in the memory of the electronic device.

The test field division planting module 101 is used to divide the oat test field of ^12hm into 12 test fields equally, and plant oats of the same variety in the 12 test fields at the same interval;

The potassium fertilizer application amount combination module 102 is used to set four groups of potassium fertilizer application amounts, and combine the four groups of potassium fertilizer application amounts with three growth cycles of oats to obtain twelve groups of potassium fertilizer application amounts in growth cycles;

The oat growth index and yield index calculation module 103 is used to apply potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and oat growth index of the 12 test fields at the oat maturity stage. Yield index values, in which the growth index is obtained by calculating the leaf area of a single oat plant, and the yield index is obtained by calculating the unit seed yield of oats;

The trend graph drawing module 104 is used to summarize and organize the growth index and yield index values of the 12 experimental fields of oats, and draw the trend charts of the potassium fertilizer application amount, oat growth index and yield index of the three growth cycles of the oat ,;

The functional equation fitting module 105 is used to construct the functional equation fitting above-mentioned trend chart, obtain the fitting equation of the potash fertilizer application amount and oat growth index and yield index of the three growth cycles of the oat;

The potassium fertilizer application amount prediction module 106 is used to input the expected growth index value and yield index value of oats into the fitting equation, and obtain the suitable potassium fertilizer application amount of oats in reverse, so as to complete the prediction of potassium fertilizer application amount suitable for northern oat production.

In detail, the specific implementation of the modules in the device for predicting the amount of potassium fertilizer 100 suitable for northern oat production in the embodiment of the present invention is the same as that in embodiment 1, and will not be repeated here.

As shown in FIG. 5 , it is a schematic structural diagram of an electronic device for implementing a method for predicting the amount of potassium fertilizer suitable for northern oat production provided by an embodiment of the present invention.

Described electronic equipment 1 can comprise processor 10, memory 11 and bus 12, can also comprise the computer program that is stored in described memory 11 and can run on described processor 10, as the potash fertilizer consumption prediction suitable for northern oat production method procedure.

Wherein, the memory 11 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, mobile hard disk, multimedia card, card-type memory (for example: SD or DX memory, etc.), magnetic memory, magnetic disk, CD etc. The storage 11 may be an internal storage unit of the electronic device 1 in some embodiments, such as a mobile hard disk of the electronic device 1 . The memory 11 can also be an external storage device of the electronic device 1 in other embodiments, such as a plug-in mobile hard disk equipped on the electronic device 1, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, flash memory card (Flash Card), etc. Further, the memory 11 may also include both an internal storage unit of the electronic device 1 and an external storage device. The memory 11 can not only be used to store the application software and various data installed in the electronic device 1, such as the code of the method program for predicting the amount of potassium fertilizer suitable for northern oat production, but also can be used to temporarily store the output or will be output. data.

In some embodiments, the processor 10 may be composed of integrated circuits, for example, may be composed of a single packaged integrated circuit, or may be composed of multiple integrated circuits with the same function or different functions, including one or more Combination of central processing unit (Central Processing unit, CPU), microprocessor, digital processing chip, graphics processor and various control chips, etc. The processor 10 is the control core (Control Unit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, and runs or executes programs or modules stored in the memory 11 (such as suitable Potassium fertilizer consumption forecast method program for northern oat production, etc.), and call the data stored in the memory 11 to execute various functions of the electronic device 1 and process data.

The bus 12 may be a peripheral component interconnect standard (PCI for short) bus or an extended industry standard architecture (EISA for short) bus or the like. The bus 12 can be divided into address bus, data bus, control bus and so on. The bus 12 is configured to realize connection and communication between the memory 11 and at least one processor 10 and the like.

FIG. 5 only shows an electronic device with components. Those skilled in the art can understand that the structure shown in FIG. 5 does not constitute a limitation to the electronic device 1, and may include fewer or more components, or combinations of certain components, or different arrangements of components.

For example, although not shown, the electronic device 1 can also include a power supply (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, so that the power supply can be controlled by power management. The device implements functions such as charge management, discharge management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power failure detection circuits, power converters or inverters, power status indicators and other arbitrary components. The electronic device 1 may also include various sensors, bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

Further, the electronic device 1 may also include a network interface, optionally, the network interface may include a wired interface and/or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which are usually used in the electronic device 1 Establish a communication connection with other electronic devices.

Optionally, the electronic device 1 may further include a user interface, which may be a display (Display) or an input unit (such as a keyboard (Keyboard)). Optionally, the user interface may also be a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) touch panel, and the like. Wherein, the display may also be appropriately called a display screen or a display unit, and is used for displaying information processed in the electronic device 1 and for displaying a visualized user interface.

It should be understood that the embodiments are only for illustration, and are not limited by the structure in terms of the scope of the patent application.

The potash fertilizer consumption prediction method program suitable for northern oat production stored in the memory 11 in the electronic device 1 is a combination of multiple instructions. When running in the processor 10, it can realize:

The oat test field ^of 12hm is equally divided into 12 test fields, and the same kind of oat is planted in the 12 test fields at the same interval;

Four groups of potassium fertilizer application rates are set, and the four groups of potassium fertilizer application rates are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application rates;

Apply potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and yield index value of 12 test field oats in the oat maturity stage, wherein the growth index is calculated by calculating the oat single plant leaf area Obtained, the yield index is obtained by calculating the unit seed yield of oats;

Summarize the growth index and yield index value of the oats in the 12 test fields, and draw the trend charts of the potassium fertilizer application amount and the oat growth index and yield index in the three growth cycles of the oat;

Construct function equation fitting above-mentioned trend chart, obtain the fitting equation of the potash fertilizer application amount of described oat three growth cycles and oat growth index and yield index;

The oat expected growth index value and yield index value are input into the fitting equation, and the suitable potassium fertilizer application amount of oat is obtained by backward deduction, so as to complete the prediction of the potassium fertilizer amount suitable for northern oat production.

Specifically, for the specific implementation method of the above instructions by the processor 10, reference may be made to the description of relevant steps in the embodiments corresponding to FIG. 1 to FIG. 5 , and details are not repeated here.

Further, if the integrated modules/units of the electronic device 1 are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium may be volatile or non-volatile. For example, the computer readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory).

The present invention also provides a computer-readable storage medium, the readable storage medium stores a computer program, and when the computer program is executed by a processor of an electronic device, it can realize:

The oat test field ^of 12hm is equally divided into 12 test fields, and the same kind of oat is planted in the 12 test fields at the same interval;

Four groups of potassium fertilizer application rates are set, and the four groups of potassium fertilizer application rates are combined with three growth cycles of oats to obtain twelve groups of growth cycle potassium fertilizer application rates;

Apply potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount of the twelve groups of growth cycles, and calculate the growth index and yield index value of 12 test field oats in the oat maturity stage, wherein the growth index is calculated by calculating the oat single plant leaf area Obtained, the yield index is obtained by calculating the unit seed yield of oats;

Summarize the growth index and yield index value of the oats in the 12 test fields, and draw the trend charts of the potassium fertilizer application amount and the oat growth index and yield index in the three growth cycles of the oat;

Construct function equation fitting above-mentioned trend chart, obtain the fitting equation of the potash fertilizer application amount of described oat three growth cycles and oat growth index and yield index;

The oat expected growth index value and yield index value are input into the fitting equation, and the suitable potassium fertilizer application amount of oat is obtained by backward deduction, so as to complete the prediction of the potassium fertilizer amount suitable for northern oat production.

In the several embodiments provided by the present invention, it should be understood that the disclosed devices, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software function modules.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention.

Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or devices stated in the system claims may also be realized by one unit or device through software or hardware. Secondary terms are used to denote names without implying any particular order.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A method for predicting the consumption of a potassium fertilizer suitable for northern oat production is characterized by comprising the following steps:

will be 12hm ² Equally dividing the oat test field into 12 parts of test fields, and planting the same variety of oat in the 12 parts of test fields at the same interval;

setting four groups of potassium fertilizer application amounts, and combining the four groups of potassium fertilizer application amounts with three growth cycles of the oat to obtain twelve groups of potassium fertilizer application amounts in the growth cycles;

respectively applying potassium fertilizers in the 12 test fields according to the potassium fertilizer application amount in the twelve groups of growth periods, and calculating the growth index and yield index value of the 12 test fields at the mature period of the oat, wherein the growth index is obtained by calculating the leaf area of an individual oat plant, and the yield index is obtained by calculating the yield of seeds of the oat per unit;

summarizing and sorting the growth indexes and the yield index values of the 12 parts of test field oats, and drawing a trend chart of potassium fertilizer application amount, oat growth indexes and yield indexes of the oats in three growth periods;

building a function equation to fit the trend chart to obtain a fitting equation of the potassium fertilizer application amount, the oat growth indexes and the yield indexes of the oats in three growth periods;

and inputting the expected growth index numerical value and the yield index numerical value of the oats into the fitting equation, and reversely pushing to obtain the proper potassium fertilizer application amount of the oats, so as to complete the prediction of the potassium fertilizer application amount suitable for the northern oats production.

2. The method for predicting the amount of potash fertilizer suitable for northern oat production according to claim 1, wherein said setting four sets of potash fertilizer application amount and combining the four sets of potash fertilizer application amount with three growth cycles of oat to obtain twelve growth cycle potash fertilizer application amount comprises:

the application amount of the four groups of potassium fertilizers in the oat test field is respectively set to be 0 and 50 Kg.N.hm ² 、100Kg·N·hm ² 、150Kg·N·hm ² ；

Dividing the growth cycle of the oat into an elongation stage, a heading stage, a grouting stage and a maturation stage, and applying potassium fertilizer in the three growth cycles of the elongation stage, the heading stage and the grouting stage respectively;

and combining the four groups of potassium fertilizer application amounts and the three growth periods of the oats in pairs to obtain the twelve groups of growth period potassium fertilizer application amounts.

3. The method of claim 1, wherein the yield index is obtained by calculating the seed yield per unit of oats, and comprises:

harvesting 0.5hm of each in the 12 test fields ² The mature oat crops are obtained;

manually separating the fruit of the mature oat crop to obtain oat seed;

and drying the oat seeds, weighing and calculating to obtain the yield index of the unit seed yield of the oat.

4. The method for predicting the amount of potash fertilizer suitable for northern oat production according to claim 1, wherein the growth index is obtained by calculating the leaf area of an individual oat plant, comprising:

picking 10 uniform and good-growing oats in each of the 12 test fields to obtain oat organisms;

the individual leaf area of the oat organism was calculated by constructing the following formula:

wherein S is the single plant leaf area of the oat organism growth index, c _i Is the individual leaf length of the oat organism, d _i Is the individual leaf width of the oat organism, i is the 10 oats.

5. The method of claim 3, wherein the step of drying the oat groats, weighing and calculating the yield of oats per unit of groat comprises:

deactivating enzyme of the oat seeds for 30min in a deactivation-enzyme box at 105 ℃ to obtain deactivated oat seeds;

drying the de-enzymed oat seeds to constant weight in a drying box at the temperature of 80 ℃ to obtain dried oat seeds;

weighing the mass of the dried oat seeds by using a balance to obtain the yield of the oat seeds;

inputting the yield of the oat seeds into a pre-constructed model, and calculating to obtain the yield of the oat seeds per unit.

6. The method for predicting the amount of the potassium fertilizer suitable for northern oat production according to claim 1, wherein the step of summarizing and sorting the values of the growth index and the yield index of 12 test-field oats and drawing a trend chart of the potassium fertilizer application amount and the oat growth index and yield index of the oats in three growth cycles comprises the following steps:

the 12 parts of growth indexes and yield index values are arranged and summarized into 3 groups of growth data sets with potassium fertilizer application amount corresponding to the growth index values and 3 groups of yield data sets with potassium fertilizer application amount corresponding to the yield index values according to three growth periods of the oat;

constructing 3 growth subject plane rectangular coordinate systems with the potassium fertilizer application amount as an x axis and the oat growth index as a y axis;

respectively describing the 3 groups of growth data sets in the 3 rectangular plane coordinate systems of the growth subject to obtain 3 groups of growth data coordinate points;

respectively connecting the 3 groups of growth data coordinate points by using a smooth curve to obtain 3 groups of growth trend graphs;

constructing 3 yield subject plane rectangular coordinate systems with the potassium fertilizer application amount as an x axis and the oat yield index as a y axis;

respectively describing the 3 groups of yield data sets in the 3 yield subject plane rectangular coordinate systems to obtain 3 groups of yield data coordinate points;

and respectively connecting the 3 groups of yield data coordinate points by using a smooth curve to obtain 3 groups of yield trend graphs.

7. The method for predicting the amount of the potash fertilizer suitable for production of oats in the north of claim 1, wherein the step of fitting the trend graph with the constructed function equation to obtain a fitting equation of the potash fertilizer application amount, the oat growth index and the oat yield index of the oats in three growth cycles comprises the following steps:

the following function equation is constructed to fit the 3 groups of growth tendency maps and the 3 groups of yield tendency maps:

wherein Y is _j The 3 groups of growth index values and the 3 groups of yield index values, x, of the oats are obtained _j The amount of the 3 groups of potash fertilizers applied is a _j 、b _j And k _j J is the coefficient of the function equation, is the three growth cycles of the oat and takes the value of 1-3;

sequentially substituting the 3 groups of growth data coordinate points and the 3 groups of yield data coordinate points into the function equation, and calculating to obtain 6 groups of a _j 、b _j And k _j A value of (d);

respectively using said 6 groups a _j 、b _j And k _j Replaces a of the function equation _j 、b _j And k _j And obtaining 3 fitting equations of the potassium fertilizer application amount and the oat growth indexes and 3 fitting equations of the potassium fertilizer application amount and the oat yield indexes.

8. The method for predicting the amount of the potassium fertilizer suitable for northern oat production according to claim 1, wherein the step of inputting the expected oat growth index value and the yield index value into the fitting equation and performing back-stepping to obtain the proper amount of the potassium fertilizer suitable for northern oat comprises the following steps:

inputting the numerical values of the expected oat growth indexes into a fitting equation of the 3 potassium fertilizer application amounts and the oat growth indexes, and performing reverse pushing to obtain the appropriate potassium fertilizer application amounts of the numerical values of the expected oat growth indexes in three growth periods;

and inputting the expected oat yield index values into a fitting equation of the 3 potassium fertilizer application amounts and the oat yield index respectively, and performing reverse pushing to obtain the appropriate potassium fertilizer application amount of the expected oat yield index values in three growth periods.

9. The method for predicting the amount of the potash fertilizer suitable for northern oat production according to claim 5, wherein the inputting the oat seed yield into a pre-constructed model and calculating the oat seed yield per unit comprises:

the following model is constructed to calculate the yield of the oat seeds per unit:

wherein M is the unit seed yield of the oats in the oat test field, and M is the yield of the oats obtained by weighing the scales.

10. A potassium fertilizer dosage prediction device suitable for northern oat production is characterized by comprising:

a test field division planting module for dividing 12hm ² Equally dividing the oat test field into 12 parts of test fields, and planting the same variety of oat in the 12 parts of test fields at the same interval;

the potassium fertilizer application amount combined module is used for setting four groups of potassium fertilizer application amounts and combining the four groups of potassium fertilizer application amounts with three growth cycles of oat to obtain twelve groups of growth cycle potassium fertilizer application amounts;

the oat growth index and yield index calculation module is used for respectively applying the potassium fertilizer in the 12 test fields according to the potassium fertilizer application amount in the twelve groups of growth periods, and calculating the growth index and yield index value of the 12 test fields in the oat maturation period, wherein the growth index is obtained by calculating the leaf area of each individual oat plant, and the yield index is obtained by calculating the yield of each seed of the oats;

the trend drawing module is used for summarizing and sorting the growth index and yield index values of the 12 parts of test field oat and drawing a trend drawing of the potassium fertilizer application amount, the oat growth index and yield index of the three growth periods of the oat;

the function equation fitting module is used for constructing a function equation fitting the trend chart to obtain a fitting equation of the potassium fertilizer application amount, the oat growth indexes and the yield indexes of the three growth periods of the oats;

and the potassium fertilizer application amount prediction module is used for inputting the expected growth index numerical value and the yield index numerical value of the oat into the fitting equation, and performing backward pushing to obtain the proper potassium fertilizer application amount of the oat so as to complete the prediction of the potassium fertilizer amount suitable for northern oat production.

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