CN103718821A - Seeding method for tartary buckwheat - Google Patents

Abstract

The invention relates to the technical field of agriculture and particularly relates to a seeding method for tartary buckwheat. The method is as follows: the seed quantity for seeding is 40kg/hm<2>-60kg/hm<2>; the seeding depth is 4cm; earth is covered after the seeding; the basic seeding quantity is 150*140 strains/hm<2>. According to the method, the emergence rate and the planting rate of the tartary buckwheat are improved through adjusting the seeding quantity, the seeding depth and the soil covering condition after the seeding; the quality of tartary buckwheat seedlings can be improved and the output is improved. The method is also applicable to mechanical seeding of the tartary buckwheat and provides theoretical references and technical supports for further search and application of a tartary buckwheat mechanization technology in southwest. An experiment shows that compared with the prior art, the method provided by the invention is used for seeding; the emergence rate can be improved by 14.89% and the output is improved by 56.3%.

Description

A kind of sowing method of tartary buckwheat

technical field

The invention relates to the field of agricultural technology, in particular to a method for sowing tartary buckwheat.

Background technique

Buckwheat belongs to the dicotyledonous plant of Polygonaceae (Polygonaceae), and buckwheat has two cultivated species, namely sweet buckwheat (Fagopyrum esculentum) and tartary buckwheat (Fagopyrum tataricum). Buckwheat originated in China. Sweet buckwheat is mainly distributed in Inner Mongolia, Shaanxi, Gansu and Ningxia areas north of the Qinling Mountains in my country. Tartary buckwheat is mainly distributed in alpine and hilly areas such as Yunnan, Guizhou and Sichuan. Due to its unique nutritional and medicinal value, tartary buckwheat has been paid more and more attention in recent years, and the market demand is increasing day by day. Therefore, the development of tartary buckwheat production has important practical significance for enriching nutritious and healthy food, increasing farmers' production and income, and developing buckwheat characteristic industries.

However, because tartary buckwheat is mainly planted in southwestern hilly areas and alpine mountainous areas, limited by geographical conditions such as undulating terrain, plot size, and inconvenient transportation, and the cultural quality of farmers in mountainous areas is generally not high, and the penetration rate of agricultural technology is low, the production of tartary buckwheat It is still in the extensive planting methods such as widespread sowing and seldom manual on-demand planting. There is no agricultural mechanization at all, the production efficiency is extremely low, and the management level is backward, which seriously restricts the rapid development of tartary buckwheat in Southwest China. The survey shows that under the current conventional planting method, the yield of tartary buckwheat is 1.5t/hm ² (ie 100kg/mu).

Seedling quality is the basis for high yield of crops, but tartary buckwheat seeds have small grains and poor soil breaking ability. Therefore, it is necessary to study suitable sowing methods of tartary buckwheat, increase emergence rate and seedling rate, and improve the quality of tartary buckwheat seedlings to realize the mechanization of tartary buckwheat. The basis for sowing.

Contents of the invention

In view of this, the technical problem to be solved by the present invention is to provide a method for sowing tartary buckwheat. The method can increase the emergence rate and seedling rate of the tartary buckwheat, and can improve the quality of the buckwheat seedlings to increase the yield. The method is also applicable to the mechanized sowing of tartary buckwheat.

The invention provides a sowing method of tartary buckwheat. The sowing amount is 40kg/hm ² -60kg/hm ² , the sowing depth is 4cm, the seedling is covered with soil after sowing, and the basic seedling amount is 150×10 ⁴ plants/hm ² .

Preferably, the sowing row spacing is 20cm-25cm, and the nest spacing is 10cm-15cm.

Preferably, the row spacing of sowing is 22cm.

Preferably, the row seeding amount is 1.7g-2.6g.

Preferably, the row seeding amount is 2.1g.

Preferably, the amount of seed used for sowing is 40kg/hm ² .

Preferably, the sowing period is from late March to late April, mid-to-late June or early-to-mid-August to early September.

Preferably, methyl isothion is used for seed dressing before sowing.

Seed dressing before sowing can prevent underground pests such as cutworms, grubs, and needleworms, as well as birds and animals.

Preferably, sowing adopts the method of drill sowing.

Preferably, drill sowing is specifically as follows: 5m to 6m open box, 13cm to 17cm in width, and 20cm to 25cm in empty row.

In the method provided by the invention, a semi-automatic seeder is used for sowing.

The method provided by the invention can adopt semi-automatic mechanical sowing, and can be suitable for planting tartary buckwheat in hills and alpine mountainous areas.

The present invention also provides a kind of planting method of tartary buckwheat, comprises the following steps:

After soil preparation, weeding, and base fertilizer application, the seeding method provided by the invention is used for sowing.

The tartary buckwheat planting method provided by the invention further includes the step of leveling the soil after sowing.

Preferably, the mass ratio of nitrogen, phosphorus and potassium in the base fertilizer is 15:15:15.

Preferably, the application rate of the base fertilizer is 450kg/hm ² .

More preferably, the base fertilizer applied in low-fertility areas is: superphosphate 300kg/hm ² -600kg/hm ² , urea 50kg/hm ² -80kg/hm ² and potassium fertilizer 45kg/hm ² -75kg/hm ² .

More preferably, the base fertilizer applied in high-fertility areas is: superphosphate 150kg/hm ² -300kg/hm ² and potassium fertilizer 30kg/hm ² -50kg/hm ² .

As a preference, the herbicide used for weed control is Jingbendide or Jinghe grass.

This application adopts one weeding before sowing, so as to avoid the difficult problem of weeding during the growth period of tartary buckwheat.

Preferably, the soil preparation is specifically shallow plowing and stubble removal, followed by deep plowing and fine cultivation.

Preferably, a rotary tiller is used for land preparation.

As preferably, potassium dihydrogen phosphate is sprayed at the early flowering stage of tartary buckwheat.

Preferably, the spraying amount of potassium dihydrogen phosphate is 4kg/hm ² -6kg/hm ² .

Preferably, the paclobutrazol solution with a concentration of 100 ppm to 200 ppm is sprayed at the budding stage of tartary buckwheat.

Preferably, the spraying amount of the paclobutrazol solution with a concentration of 100 ppm to 200 ppm is 600 to 800 kg/hm ² .

Spraying dipotassium hydrogen phosphate and paclobutrazol can further increase production.

The sowing method of the tartary buckwheat provided by the present invention is as follows: the sowing amount is 40kg/hm ² -60kg/hm ² , the sowing depth is 4cm, the seedling is covered with soil after sowing, and the basic seedling amount is 150×10 ⁴ plants/hm ² . Studies have shown that sowing depth and agronomic measures have an important impact on the quality of tartary buckwheat seedlings. Sowing too deep is not conducive to the germination of tartary buckwheat seeds; . The method provided by the invention improves the emergence rate and seedling rate of the tartary buckwheat by adjusting the sowing amount, the sowing depth and the condition of soil covering after sowing, and can improve the quality of the buckwheat seedlings and further increase the yield. This method is also applicable to the mechanized sowing of tartary buckwheat, providing theoretical reference and technical support for further exploration and application of tartary buckwheat mechanized technology in Southwest China. Experiments show that, compared with the prior art, the seedling emergence rate can be increased by 14.89% and the yield can be increased by 56.3% by adopting the method provided by the invention for sowing.

Detailed ways

The invention provides a tartary buckwheat seeding method, which can be realized by those skilled in the art by referring to the content of this article and appropriately improving the process parameters. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and the relevant personnel can obviously make changes or appropriate changes and combinations to the method and application described herein without departing from the content, spirit and scope of the present invention to realize and Apply the technology of the present invention.

The materials used in the present invention are all common commercial products and can be purchased from the market.

The test was carried out in Wufeng Town, Jintang County, Sichuan Province from August to October 2013. The seeder was a hand-drag semi-automatic seeder produced by Zhongjiang County Zefeng Small Agricultural Machinery Manufacturing Co., Ltd. The opener can be adjusted by manually switching the linkage The depth of entry into the soil is used to adjust the sowing depth, and the knob is turned to adjust the depth of the groove to adjust the sowing amount. The soil fertility of the test site is moderate, sandy loam. The soil analysis results show that the soil pH is 6.59, the organic matter is 2.22%, the alkaline hydrolysis nitrogen is 128.0mg/kg, the available phosphorus is 23.7mg/kg, the available potassium is 116.0mg/kg, the total nitrogen is 1.29g/kg, the total phosphorus 0.87%g/kg, total potassium 14.8g/kg, formerly as buckwheat.

The seeds were the high-yielding tartary buckwheat variety Xiqiao No. 2, provided by Xichang University.

The experiment adopted a two-factor split-plot experimental design.

Below in conjunction with embodiment, further set forth the present invention:

Embodiment 1 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. Do not cover the soil after sowing, the sowing depth is 2cm, the sowing rate is 40kg/hm ² , and the soil should be flattened after sowing to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 2 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. Do not cover the soil after sowing, the sowing depth is 4cm, and the sowing rate is 40kg/hm ² . After sowing, cover the soil to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 3 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. Do not cover the soil after sowing, the sowing depth is 6cm, and the sowing rate is 40kg/hm ² . After sowing, cover the soil to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 4 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. After sowing, cover the soil with a sowing depth of 2cm and a seeding rate of 40kg/hm ² . After sowing, cover the soil to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 5 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. After sowing, cover the soil with a sowing depth of 4cm and a seeding rate of 40kg/hm ² . After sowing, cover the soil to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 6 adopts the method provided by the invention to sow tartary buckwheat

The sowing is carried out in the plot, the plot is 2m wide, 3m long, with an area of 6m ² , and the direction is north-south. Before sowing, the soil is plowed and finely ground. After sowing, cover the soil with a sowing depth of 6cm and a seeding rate of 40kg/hm ² . After sowing, cover the soil to make the plot level. Apply compound fertilizer (N:P:K=15:15:15) 450kg/hm ² per hectare, and apply the whole base fertilizer once. The same sowing method was repeated for three plots.

Embodiment 7 The present invention provides the impact of seeding method on the emergence of tartary buckwheat

The test adopts a two-factor split-plot experimental design, and calculates the average value after statistical results of the three plots in each embodiment. The seedling emergence of tartary buckwheat after sowing using the method provided by Examples 1 to 6 of the present invention is shown in Table 1. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 1 adopts the method that the embodiment of the present invention 1～6 provides the emergence situation of tartary buckwheat after sowing

Table 2 shows the statistical results of the seedling emergence of tartary buckwheat after sowing with no soil or soil covering and the emergence of tartary buckwheat after sowing at different sowing depths. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 2 Effects of sowing depth and covering soil on buckwheat basic seedlings, emergence rate and seedling rate

It can be seen from Table 1 and Table 2 that the sowing depth has a significant impact on the emergence of buckwheat seedlings. The basic buckwheat seedlings at the 4cm sowing depth are the highest, at 14.24×10 ⁴ plants/hm ² , which is significantly higher than the 2cm and 6cm sowing depth treatments, respectively. It increases by 20.47% and 20.98%.

The seedling emergence rate and seedling growth rate of buckwheat were also the highest at 4cm sowing depth, which were 74.93% and 65.76% respectively, which were significantly different from 2 and 6cm;

Covering soil can significantly increase the emergence rate, seedling rate and basic seedling number of buckwheat. Compared with no soil covering, the emergence rate, seedling growth rate and basic seedling number of soil covering treatment increased by 32.50%, 33.44% and 32.53%, respectively.

In the case of no soil covering, increasing the sowing depth (2cm-6cm) can increase the emergence rate, seedling growth rate and basic seedling number of buckwheat, but in the case of covering soil, it shows that with the increase of sowing depth (2cm-6cm), there is an increase The trend of increasing and then decreasing.

In terms of interaction, the interaction effects of sowing depth and soil covering on the basic seedlings, emergence rate and seedling growth rate of buckwheat were not significant. Generally speaking, the comprehensive performance of buckwheat sown at a depth of 4 cm was the best under the condition of covering soil, and the emergence rate, seedling rate and basic seedlings were the highest.

Embodiment 8 The present invention provides the influence of sowing method on the agronomic traits of tartary buckwheat seedlings

The test adopts a two-factor split-plot experimental design, and calculates the average value after statistical results of the three plots in each embodiment. The agronomic traits of tartary buckwheat after sowing by the method provided in Examples 1 to 6 of the present invention are shown in Table 3. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 3 adopts the method that the embodiment of the present invention 1～6 provides the agronomic character of tartary buckwheat seedling after sowing

Table 4 shows the statistical results of the agronomic traits of tartary buckwheat seedlings after sowing with no soil or soil covering and the agronomic traits of tartary buckwheat seedlings after sowing at different sowing depths. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 4 Effects of sowing depth and covering soil on the agronomic characters of buckwheat seedlings

It can be seen from Table 3 and Table 4 that the sowing depth has a significant impact on the plant height, stem diameter and leaf area per plant of buckwheat seedlings, and the highest sowing depth is ^4cm , which are 25.09cm, 2.29mm and 38.08cm ² ·plant- ¹ , significantly higher than the sowing depth of 2cm and 6cm.

Covering soil can significantly improve the aboveground agronomic traits of buckwheat seedlings, increase plant height, stem diameter and leaf area per plant, which are 2.06%, 10.78% and 14.89% higher than those without soil covering treatment. Under the condition of covering soil, sowing depth had no significant effect on buckwheat seedling height and stem diameter, but too deep sowing (6 cm) would reduce the single leaf area of buckwheat seedlings. Under the condition of no soil covering, compared with the sowing depth of 2 cm, the sowing depth of 4 cm significantly increased the plant height, stem diameter and single leaf area of buckwheat seedlings, while the sowing depth of 6 cm showed a downward trend, but only the difference in plant height reached a significant level.

In terms of interaction, the interaction effect of sowing depth and soil cover on the height of buckwheat seedlings reached a significant level (FA×B=6.34, p<0.05), but there was no interaction effect on stem diameter and leaf area per plant.

The length of the mid-ground stem and cotyledon node of buckwheat seedlings were significantly affected by the sowing depth, and the length of the mid-ground stem increased significantly with the increase of sowing depth, while the length of the cotyledon node was the shortest at 4 cm sowing depth, which was 5.29 cm, which was significantly lower than 2 cm And 6cm sowing depth.

Covering soil significantly increased the aboveground stem length of buckwheat seedlings, which was 12.24% higher than that of no soil covering treatment. In the case of soil cover, compared with the sowing depth of 2cm, the length of the underground stem was significantly increased by the sowing depth of 4cm and 6cm, but the cotyledon node length was significantly reduced, and the 4cm sowing depth decreased the most, and the difference reached a significant level, while the 6cm sowing depth showed no difference. significantly. Under the condition of not covering soil, with the increase of sowing depth, the length of the stem in the ground increased significantly, the highest sowing depth was 6cm, which was 90.63% and 10.91% higher than the sowing depth of 2cm and 4cm, respectively, and the cotyledon node length decreased significantly. The difference between the 6cm and 2cm treatments was significant, but the difference with the 4cm sowing depth was not significant.

Sowing depth and covering soil had a very significant interaction effect on the length of the above-ground stem of buckwheat seedlings (FA×B=11.19, p<0.01), but there was no interaction effect on the length of the cotyledon node.

Embodiment 9 The present invention provides the effect of sowing method on root vigor and chlorophyll content of tartary buckwheat seedlings

The test adopts a two-factor split-plot experimental design, and calculates the average value after statistical results of the three plots in each embodiment. Table 5 shows the root activity and chlorophyll content of buckwheat seedlings after sowing using the methods provided in Examples 1 to 6 of the present invention. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 5 adopts the methods provided by the embodiments of the present invention 1 to 6 to provide buckwheat seedling root vigor and chlorophyll content after sowing

Table 6 shows the statistical results of root vigor and chlorophyll content of tartary buckwheat seedlings after sowing with no soil or soil covering, and the root vigor and chlorophyll content of tartary buckwheat seedlings after sowing at different sowing depths. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 6 Effects of sowing depth and covering soil on root activity and chlorophyll content of buckwheat seedlings

From Table 5 and Table 6, it can be seen that the depth of mechanical sowing has a significant impact on the root activity and leaf SPAD value of buckwheat seedlings ^{. 1} ·h ^-1 and 32.02mg·g ^-1 ·h ^-1 , significantly higher than 2cm sowing depth. There was no significant difference in the root activity of buckwheat seedlings between the 4cm sowing depth and the 6cm sowing depth, but the difference with the SPAD value reached a very significant level. Compared with no soil covering, soil covering treatment significantly increased root activity of buckwheat seedlings, but had no effect on leaf SPAD value. Under soil cover, the root activity of buckwheat seedlings at a sowing depth of 4cm was the highest, 0.96 mg·g ^-1 ·h ^-1 , which was significantly higher than that of the sowing depth of 2cm, but not significantly different from that of the sowing depth of 6cm. Sowing depth had no significant effect on the chlorophyll content of buckwheat seedling leaves. Under the condition of no soil covering, the sowing depth had no obvious effect on the root activity of buckwheat, and the difference among the treatments was not significant, while the leaf SPAD value was the highest at the 4cm sowing depth, which was 32.12, which was significantly higher than the 2cm and 6cm sowing depth treatments. In terms of interaction effects, there was a very significant interaction effect between sowing depth and soil cover on the SPAD value of buckwheat seedlings (FA _×B = 8.79, p<0.01), but there was no interaction effect on root activity.

Embodiment 10 The present invention provides the influence of sowing method on dry matter accumulation of tartary buckwheat seedlings and root-to-shoot ratio

The test adopts a two-factor split-plot experimental design, and calculates the average value after statistical results of the three plots in each embodiment. Table 7 shows the dry matter accumulation and root-shoot ratio of tartary buckwheat seedlings after sowing using the method provided by Examples 1 to 6 of the present invention. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 7 adopts the embodiment of the present invention 1～6 to provide method and dry matter accumulation of tartary buckwheat seedling and root-to-shoot ratio after sowing

Table 8 shows the statistical results of the dry matter accumulation and root-shoot ratio of tartary buckwheat seedlings after sowing with no soil or soil covering methods, and the dry matter accumulation and root-shoot ratio of tartary buckwheat seedlings after sowing at different sowing depths. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 8 Effects of sowing depth and covering soil on dry matter accumulation and root-to-shoot ratio of buckwheat seedlings

It can be seen from Table 7 and Table 8 that the mechanical sowing depth has a significant effect on the dry matter weight and root-shoot ratio of buckwheat seedlings. Compared with the sowing depth of 2 cm, the sowing depth of 4 cm significantly increases the root dry matter weight, leaf dry matter The total dry matter weight and root-shoot ratio, but the stem weight did not change significantly. Under the condition of 6cm sowing depth, the root dry weight and root-shoot ratio increased significantly, but the stem weight had no significant change, and the leaf dry weight decreased significantly.

Compared with no soil covering, soil covering significantly increased root dry weight and stem dry weight of buckwheat seedlings, but had no significant effect on leaf dry weight, total dry matter weight and root-to-shoot ratio. Under the condition of covering soil, the sowing depth has a significant effect on the root dry matter weight, stem dry matter weight, leaf dry matter weight, total dry matter weight and root-to-shoot ratio of buckwheat seedlings, and the highest sowing depth is 4cm, which is significantly or extremely significantly higher than the 2cm sowing depth And 6cm sowing depth (except stem weight). The effects of sowing depth on the dry matter weight of buckwheat organs and root-to-shoot ratio had similar changes under the condition of no soil covering.

In terms of interaction effects, there was a significant interaction between sowing depth and soil covering conditions on root dry matter weight (FA _×B ＝18.42, p＜0.01) and total dry matter (FA _×B ＝10.09, p＜0.01) of buckwheat seedlings, There was a significant interaction effect on leaf dry matter weight (FA _×B = 7.40, p<0.05), but there was no interaction effect on buckwheat seedling stem dry matter weight and root-to-shoot ratio.

Embodiment 11 The present invention provides the influence of sowing method on tartary buckwheat output

Harvest when 70% of the seeds of the plant show the mature color of the variety. Harvesting is carried out in the morning, and the cut plants should be piled up nearby, and the number of unloading should be reduced as much as possible before and after threshing. After threshing on sunny days, the grains should be fully dried, and stored in a clean, dark, dry, ventilated, pollution-free and moisture-proof facility after drying. place to keep seeds safe and available.

The test adopts a two-factor split-plot experimental design, and calculates the average value after statistical results of the three plots in each embodiment. The yield of tartary buckwheat after sowing by the method provided in Examples 1 to 6 of the present invention is shown in Table 9. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 9 Seedling emergence yield of tartary buckwheat after adopting the method provided by Examples 1 to 6 of the present invention? Condition

Yield/kg/mu Example 1 90.5bB Example 2 130.3aA Example 3 141.5aA Example 4 135.9bB Example 5 156.3aA Example 6 122.5cC

Table 10 shows the statistical results of tartary buckwheat yield after sowing by all methods of not covering soil or covering soil and the yield of tartary buckwheat after sowing at different sowing depths. Lowercase letters and uppercase letters in the table represent significant differences (LSD) at the 0.5% and 0.01% levels, respectively.

Table 10 Effect of sowing depth and covering soil on yield of buckwheat seedlings

Yield/kg/mu Not covered with soil 120.8bB cover soil 138.1aA Sowing depth 2cm 113.2cC Sowing depth 4cm 143.3aA Sowing depth 6cm 131.9bB

It can be seen from Table 9 and Table 10 that mechanical sowing depth has a significant impact on buckwheat yield. Compared with 2cm sowing depth, 4cm sowing depth significantly increases buckwheat yield.

Compared with no soil covering, soil covering significantly increased the yield of buckwheat seedlings. In the case of soil cover, the sowing depth had a significant impact on the yield of buckwheat, and the sowing depth was the highest at 4cm, which was significantly higher than the 2cm and 6cm sowing depths. Under the condition of not covering soil, the sowing depth also had a significant impact on the yield of buckwheat, and the sowing depth was the highest at 6cm, which was significantly higher than the 2cm and 4cm sowing depths.

In terms of interaction effects, there was a very significant interaction between sowing depth and soil covering conditions on buckwheat yield (FA _×B = 11.32, p<0.01).

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (8)

1. A method for sowing tartary buckwheat, characterized in that the amount of seed used for sowing is 40kg/hm ² to 60kg/hm ² , the sowing depth is 4cm, and the seedling is covered with soil after sowing, and the basic seedling amount is 150×10 ⁴ plants/hm ² . 2. The sowing method according to claim 1, characterized in that, the amount of seed used for sowing is 40kg/hm ² . 3. The sowing method according to claim 1, characterized in that, the row spacing of the sowing is 20cm-25cm, and the nest spacing is 10cm-15cm. 4. The sowing method according to claim 1, characterized in that, the sowing adopts a drilling method. 5. a planting method of tartary buckwheat, is characterized in that, comprises the following steps: After soil preparation, weeding, and base fertilizer application, the seeding method according to any one of claims 1 to 4 is used for sowing. 6. planting method according to claim 5, is characterized in that, the mass ratio of nitrogen element, phosphorus element, potassium element is 15:15:15 in the described base fertilizer. 7. The planting method according to claim 5, characterized in that the application rate of the base fertilizer is 450kg/hm ² . 8 . The planting method according to claim 5 , wherein the soil preparation comprises the steps of shallow plowing to remove stubble, deep plowing and fine cultivation.