CN103058754B - Slow-release compound fertilizer applicable to plantation of corn - Google Patents
Slow-release compound fertilizer applicable to plantation of corn Download PDFInfo
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- CN103058754B CN103058754B CN201210574341.0A CN201210574341A CN103058754B CN 103058754 B CN103058754 B CN 103058754B CN 201210574341 A CN201210574341 A CN 201210574341A CN 103058754 B CN103058754 B CN 103058754B
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- fertilizer
- compound fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B3/00—Fertilisers based essentially on di-calcium phosphate
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a corn-special slow-release long-acting compound fertilizer and belongs to the preparation of a mixture of a plurality of fertilizers and components with no special fertilizer efficiency. The invention is characterized in that the compound fertilizer is prepared by taking compound fertilizer particles as fertilizer cores, then performing coating and dusting powder treatment; the compound fertilizer particles are prepared by the following raw materials by the mass: 15 to 45 parts of urea, 5 to 40 parts of ammonium sulfate, 20 to 35 parts of potassium sulfate, 15 to 35 parts of a mixed phosphate fertilizer, 0.1 to 0.5 part of a zinc and iron additive, 7 to 10 parts of a granulating auxiliary agent and a proper amount of water. A preparation method for the compound fertilizer comprises the following steps: (1) preparation of a compound of a potash fertilizer and a nitrogen fertilizer; (2) preparation of the mixed phosphate fertilizer; (3) preparation of mixed particles of the components of the compound fertilizer; (4) coating with stearic acid; (5) powder spreading of a modified zeolite powder material; and (6) screening, metering, quality inspection and packaging of qualified fertilizer. The scorn-pecial slow-release long-acting compound fertilizer applicable to plantation of corn provided by the invention has overall nutrients and excellent slow releasing performance, improves both output and quality of corn, and saves resources and protects the environment.
Description
Technical field
The present invention is a kind of slow-release compound fertilizer being suitable for corn planting and using.Belong to multiple fertilizer and the mixture without special fertilizer efficiency component.
Background technology
Corn is important food crop and cash crop, and have statistics display, its output and cultivated area are only second to paddy rice and wheat, occupy third place in the world.Critical role is occupied in the people's livelihood and national economy.Effectively utilize limited land resources, improving the yield and quality of corn crop is the people direction of making great efforts and eternal problem.
Corn growth needs the mineral element absorbed to reach kind more than 20, mainly contains nitrogen, phosphorus, potassium three kinds of macroelement; The major elements such as Calcium Magnesium Sulphur and iron, manganese, boron, copper.?, the trace element such as sodium.The nitrogen element of corn growth demand is maximum, and phosphoric takes second place, and potassium element is minimum.Ci Wai ， ?the synthesis of element to Endogenous auxins such as indolylacetic acids in Corn play active effect, ferro element can be absolutely necessary to the content improving corn product Determination of Chlorophyll one of element.
The high-quality nitrogenous fertilizer that urea is nitrogenous height, fertilizer efficiency is fast, consumption is large.But, urea in use, easily run off by approach such as volatilization, leaching, decomposition and runoffs, cause fertilizer efficiency utilization ratio not high, according to statistics, this season utilization ratio only has about 30%, and this not only causes the waste of chemical fertilizer, and for the environment that the mankind such as air, water body soil depend on for existence.
The Chinese Patent Application No. 201110021688.8 " biodegradable coated urea " of Shikefeng Chemical Industry Co., Ltd.'s application successfully solves the above problem of urea nitrogenous fertilizer existence, the stearic acid that can degrade under soil microorganisms effect of utilization is as the coated fertilizer of nitrogenous fertilizer urea, provide a kind of coated fertilizer biodegradable, pollution-free, the biodegradable coated urea product of the utilization ratio of fertilizer can be improved again.But it is a kind of high-quality nitrogenous fertilizer, and nutritive ingredient is single, can not as the slow release fertilizer being suitable for corn planting and using.
Phosphorus is the important composition element of cytoplasmic biomolecule, is also the requisite a kind of element of plant-growth.Phosphatic rock is the main raw mineral materials manufacturing phosphate fertilizer and extract phosphorus and compound thereof; But the P manufactured in phosphate fertilizer requirement phosphatic rock
2o
5>=28%; Extract the phosphatic rock P of phosphorus and compound requirement thereof
2o
5content higher.
And along with the development of phosphorus chemical product and Phosphate Fertilizer Industry, ground phosphate rock requirement increases sharply, and higher-grade phosphate rock resource is deficient.The mode of production only depending on rich phosphorus ore can not meet the demands.In this case, the exploitation of the phosphatic rock resource that grade is not high, no matter for economizing on resources, or protection of the environment is all significant.
In sum, corn special-purpose fertilizer of the prior art exists following not enough:
1.. multilayer coating, complex manufacturing, investment is large, production cost is high.
2. coated fertilizer is difficult to degraded, and life-time service can bring negative impact to soil; Even soil is polluted, affect the quality of agricultural-food.
3. the main nutrient elements proportioning in fertilizer is unreasonable, and fertilizer efficiency utilization ratio is low.
4. lack necessary middle amount or trace element, not comprehensive nutrition, affects output increased.
4. utilization rate of nitrogen fertilizer is low, waste resource, contaminate environment.
5. be suitable for the slow-release compound fertilizer that corn planting uses also rare.
Summary of the invention
The object of the invention is to avoid above-mentioned weak point of the prior art; and a kind of comprehensive nutrition is provided; sustained release performance is excellent; fully can meet the demand of corn to nutrient; play the effect of fertilizer to greatest extent; corn yield can be improved can improve again its quality, namely economize on resources, again protection of the environment be suitable for the slow-release compound fertilizer that corn planting uses.
Object of the present invention can be reached by following measure:
The slow-release compound fertilizer being suitable for corn planting and using of the present invention, is characterized in that being made up of the following raw material according to mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent such as under:
Diammonium phosphate 45 ~ 60
Fused(calcium magnesium)phosphate 15 ~ 35
Floats 10 ~ 35
Described floats are P
2o
5the low grade rock phosphate of content between 10% ~ 20%;
Described granulation aid is mixed by the wilkinite of 70%-85% and the bauxite powder of 30%-15% and forms;
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 30 ~ 45 weight part heating and melting, ammonium sulfate 5 ~ 40 weight part is added and potassium sulfate 20 ~ 35 weight part mixes, obtained containing potassium, sulphur, the potash fertilizer of ammonium, nitrogenous fertilizer mixture, for subsequent use;
2.. prepared by mixed phosphorus fertilizer
A. the preparation of floats
Will containing P
2o
510% ~ 20% phosphatic rock grinds, the fineness of floats controls 100 order ± 10, for subsequent use;
B. mix
Floats 10 ~ 35 weight part diammonium phosphate 45 ~ 60 weight part, fused(calcium magnesium)phosphate 15 ~ 35 weight part and step a prepared mixes, for subsequent use;
3.. the preparation of each component composite grain of compound manure
Mixed phosphorus fertilizer 15 ~ 35 weight part that 2. potash fertilizer step 1. prepared, nitrogenous fertilizer mixture and step are prepared, zinc, iron additive 0.1 ~ 0.5 weight part are mixed evenly, and add granulating agent 7 ~ 10 weight part, water is appropriate.Utilize traditional tablets press by each for described compound manure component mixing granulation, for subsequent use;
4.. stearic acid film
Stearic consumption is 1.0% ~ 3.0% of compound manure each component composite grain quality that 3. step is prepared, and coating method is as follows:
A.. the stearic preparation of melting
Coating through according to after formula accurate-metering with stearic acid, drops in stearic acid fusion tank, is heated to molten state, for subsequent use;
B.. coating
According to each component composite grain of compound manure that 3. formula accurate-metering step is prepared, the melting stearic acid prepared with step a, carries out particle trypsin method in drum-type mixing granulation machine, makes composite grain outside surface form uniform as far as possible coating, warm air drying, room temperature air cooling, for subsequent use; Processing condition are as follows:
Warm air drying temperature is not higher than 80 DEG C
Cooling draught temperature is not higher than 50 DEG C;
5.. modified zeolite powder powder body material is applied powder
A. the preparation of face powder mixed powder
According to Magnesium Stearate 1.0% ~ 11%, the proportioning raw materials of zeolite powder 89% ~ 99%, accurately takes feed components respectively, mixes, grinding flour, controls powder fineness and crosses 120 mesh sieves, for subsequent use;
B. to apply powder coating
The mixed powder consumption prepared by step a controls at every 1000kg granular urea face powder 5 ~ 15kg;
6.. screening, metering, quality test, qualified rear packaging, the obtained slow-release compound fertilizer being suitable for corn planting and using; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Quality product reaches following technical indicator:
N element content % >=15
P
2o
5content %>=10
K
2o content %>=10
Grain graininess mm 2 ~ 4.75mm
Moisture content wt%≤2.0.
Crop growth is except demand N, P, K nutritive element, and S, Ca are also that demand is comparatively large and are that plant generates indispensable nutritive element.Sulphur is the important composition forming protein, and calcium plays irreplaceable vital role to the rudiment of plant seed and the growth of organ.S, Ca element enters compound manure component, in plant growth, prevention and elimination of disease and pests and improvement soil are many, all can produce positively effect.
Element sulphur in composition of raw materials of the present invention adds with the form of soluble sulphate, and large percentage, the fourth-largest nutritive element that plant growth is necessary, for corn directly provides sulphur nutrient.Phosphatic rock component in formula mixed phosphorus fertilizer, except containing except phosphoric, provides calcium constituent simultaneously, and with other components in composition of raw materials, compatibility is good, is applicable to corn growth.To the seed output and quality improving corn.Make contribution.
Object of the present invention can also be reached by following measure:
The slow-release compound fertilizer being suitable for corn planting and using of the present invention, is characterized in that being made up of the following raw material according to mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent such as under:
Diammonium phosphate 45 ~ 60
Fused(calcium magnesium)phosphate 15 ~ 35
Floats 10 ~ 35.
It is preferred technical scheme.
The slow-release compound fertilizer being suitable for corn planting and using of the present invention, is characterized in that being made up of the following raw material according to mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, its mass percent such as under:
Diammonium phosphate 50
Fused(calcium magnesium)phosphate 30
Floats 20.
It is a preferred technical scheme.
The application process being suitable for the slow-release compound fertilizer that corn planting is used of the present invention, is characterized in that trench digging imposes on below earth's surface, base fertilizer: 40 ~ 60Kg mu; Topdress: 30 ~ 40Kg/ mu.
The slow-release compound fertilizer being suitable for corn planting and using of the present invention, compared to existing technology by following positively effect:
1. provide a kind of comprehensive nutrition; sustained release performance is excellent, fully can meet the demand of corn to nutrient, play the effect of fertilizer to greatest extent; corn yield can be improved can improve again its quality, namely economize on resources, again protection of the environment be suitable for the slow-release compound fertilizer that corn planting uses.
2. individual layer coating, generating process is simple, and low equipment investment, production cost is low.
3. coated fertilizer can be degraded under soil microorganisms effect, avoids the pollution of coated fertilizer to edatope.
4. the main nutrient elements reasonable ratio in fertilizer, the element sulphur in composition of raw materials adds with the form of soluble sulphate, and large percentage, the fourth-largest nutritive element that plant growth is necessary, for corn directly provides sulphur nutrient.Fertilizer efficiency utilization ratio is high, improves the seed output and quality of corn.
5. adopt low grade as the raw material of fertilizer.Save valuable higher-grade phosphate rock resource.Protection of the environment simultaneously.
6., because of not chloride ion-containing, for corn special-purpose fertilizer, there is the effect of increasing production and improying productivity.Average mu volume increase 4.7% ~ 12.3%.
Embodiment
The present invention will now be further detailed embodiment:
Embodiment 1
Prepare the slow-release compound fertilizer being suitable for corn planting and using of the present invention in accordance with the following steps
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 30 weight part heating and melting, ammonium sulfate 10 weight part is added and potassium sulfate 25 weight part mixes, obtained containing potassium, sulphur, the potash fertilizer of ammonium, nitrogenous fertilizer mixture, for subsequent use;
2.. prepared by mixed phosphorus fertilizer
A. the preparation of floats
Will containing P
2o
510% ~ 20% phosphatic rock grinds, the fineness of floats controls 100 order ± 10, for subsequent use;
B. mix
Floats 20 weight part diammonium phosphate 50 weight part, fused(calcium magnesium)phosphate 30 weight part and step a prepared mixes, for subsequent use;
3.. the preparation of each component composite grain of compound manure
Mixed phosphorus fertilizer 27 weight part that 2. potash fertilizer step 1. prepared, nitrogenous fertilizer mixture and step are prepared, zinc, iron additive 0.5 weight part are mixed evenly, and add granulating agent 7.5 weight part, water is appropriate.Utilize traditional tablets press by each for described compound manure component mixing granulation, for subsequent use;
4.. stearic acid film
Stearic consumption is 1.0% ~ 3.0% of compound manure each component composite grain quality that 3. step is prepared, and coating method is as follows:
A.. the stearic preparation of melting
Coating through according to after formula accurate-metering with stearic acid, drops in stearic acid fusion tank, is heated to molten state, for subsequent use;
B.. coating
According to each component composite grain of compound manure that 3. formula accurate-metering step is prepared, the melting stearic acid prepared with step a, carries out particle trypsin method in drum-type mixing granulation machine, makes composite grain outside surface form uniform as far as possible coating, warm air drying, room temperature air cooling, for subsequent use; Processing condition are as follows:
Warm air drying temperature is not higher than 80 DEG C
Cooling draught temperature is not higher than 50 DEG C;
5.. modified zeolite powder powder body material is applied powder
A. the preparation of face powder mixed powder
According to Magnesium Stearate 1.0% ~ 11%, the proportioning raw materials of zeolite powder 89% ~ 99%, accurately takes feed components respectively, mixes, grinding flour, controls powder fineness and crosses 120 mesh sieves, for subsequent use;
B. to apply powder coating
The mixed powder consumption prepared by step a controls at every 1000kg granular urea face powder 5 ~ 15kg;
6.. screening, metering, quality test, qualified rear packaging, the obtained slow-release compound fertilizer being suitable for corn planting and using; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Quality product reaches following technical indicator:
N element content % >=15
P
2o
5content %>=10
K
2o content %>=10
Grain graininess mm 2 ~ 4.75mm
Moisture content wt%≤2.0.
Embodiment 2 ~ embodiment 7
According to method and the step of embodiment 1, prepare the slow-release compound fertilizer being suitable for corn planting and using of the present invention according to the composition of raw materials of table 1
Table 1
The obtained slow-release compound fertilizer being suitable for corn planting and using; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Quality product reaches following technical indicator:
N element content % >=15
P
2o
5content %>=10
K
2o content %>=10
Grain graininess mm 2-4.75mm
Moisture content wt%≤2.0.
Claims (1)
1. be suitable for the slow-release compound fertilizer that corn planting is used, it is characterized in that using compound fertilizer granule as fertilizer core, more obtained after film, face powder process; Concrete operation step and processing condition as follows:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
First after urea 30 weight part heating and melting, ammonium sulfate 10 weight part is added and potassium sulfate 25 weight part mixes, obtained containing potassium, sulphur, the potash fertilizer of ammonium, nitrogenous fertilizer mixture, for subsequent use;
2.. prepared by mixed phosphorus fertilizer
A. the preparation of floats
Will containing P
2o
510% ~ 20% phosphatic rock grinds, the fineness of floats controls 100 order ± 10, for subsequent use;
B. mix
Floats 20 weight part diammonium phosphate 50 weight part, fused(calcium magnesium)phosphate 30 weight part and step a prepared mixes, for subsequent use;
3.. the preparation of compound fertilizer granule
Mixed phosphorus fertilizer 27 weight part that 2. potash fertilizer step 1. prepared, nitrogenous fertilizer mixture and step are prepared, zinc, iron additive 0.5 weight part are mixed evenly, and add granulation aid 7.5 weight part, water is appropriate; Utilize traditional tablets press by each for described compound manure component mixing granulation, for subsequent use;
4.. stearic acid film
Stearic consumption is 1.0% ~ 3.0% of the compound fertilizer granule quality that 3. step is prepared, and coating method is as follows:
A.. the stearic preparation of melting
Coating through according to after formula accurate-metering with stearic acid, drops in stearic acid fusion tank, is heated to molten state, for subsequent use;
B.. coating
According to the compound fertilizer granule that 3. formula accurate-metering step is prepared, the melting stearic acid prepared with step a, carries out particle trypsin method in drum-type mixing granulation machine, makes compound fertilizer granule outside surface form uniform as far as possible coating, warm air drying, room temperature air cooling, for subsequent use; Processing condition are as follows:
Warm air drying temperature is not higher than 80 DEG C
Cooling draught temperature is not higher than 50 DEG C;
5.. modified zeolite powder powder body material is applied powder
A. the preparation of face powder mixed powder
According to Magnesium Stearate 1.0% ~ 11%, the proportioning raw materials of zeolite powder 89% ~ 99%, accurately takes feed components respectively, mixes, grinding flour, controls powder fineness and crosses 120 mesh sieves, for subsequent use;
B. to apply powder coating
The mixed powder adopting step a to prepare, carries out face powder process again by the compound fertilizer granule after step 4. stearic acid film, the consumption of face powder coating controls the compound fertilizer granule 3. prepared in every 1000kg step, face powder 5 ~ 15kg;
6.. screening, metering, quality test, qualified rear packaging, the obtained slow-release compound fertilizer being suitable for corn planting and using; Products obtained therefrom particle appearance is mellow and full, product free from extraneous odour;
Quality product reaches following technical indicator:
Application process obtained be suitable for the slow-release compound fertilizer trench digging that corn planting uses by above-mentioned and impose on below earth's surface, as base fertilizer, and 40 ~ 60Kg/ mu.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574341.0A CN103058754B (en) | 2012-12-26 | 2012-12-26 | Slow-release compound fertilizer applicable to plantation of corn |
| PCT/CN2013/001241 WO2014101265A1 (en) | 2012-12-26 | 2013-10-14 | Slow-release compound fertilizer applicable to plantation of corn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574341.0A CN103058754B (en) | 2012-12-26 | 2012-12-26 | Slow-release compound fertilizer applicable to plantation of corn |
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| CN103058754A CN103058754A (en) | 2013-04-24 |
| CN103058754B true CN103058754B (en) | 2015-04-22 |
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|---|---|---|---|
| CN201210574341.0A Active CN103058754B (en) | 2012-12-26 | 2012-12-26 | Slow-release compound fertilizer applicable to plantation of corn |
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| WO (1) | WO2014101265A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058754B (en) * | 2012-12-26 | 2015-04-22 | 施可丰化工股份有限公司 | Slow-release compound fertilizer applicable to plantation of corn |
| CN103460876B (en) * | 2013-09-24 | 2015-10-28 | 云南省农业科学院质量标准与检测技术研究所 | The application process that on a kind of Low Latitude Plateau Area corn, High Efficient nitrogen utilizes |
| CN103636339B (en) * | 2013-12-16 | 2015-09-16 | 西南大学 | The fertilizing method of corn |
| CN103755483B (en) * | 2014-02-18 | 2016-01-20 | 孟庆华 | A kind of Special controlled-release fertilizer for summer maize and production method thereof |
| CN107382626A (en) * | 2017-08-28 | 2017-11-24 | 吉林农业大学 | A kind of special gravel fertilizer of corn and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| CN101177365A (en) * | 2007-11-01 | 2008-05-14 | 山东农业大学 | Special controlled-release fertilizer for long-acting corn and preparation method thereof |
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241534A (en) * | 2010-05-15 | 2011-11-16 | 夏道广 | Composite fertilizer and preparation method thereof |
| CN102432374B (en) * | 2011-09-02 | 2013-06-05 | 史丹利化肥股份有限公司 | Melt biomass composite potassium sulfate type slow-release fertilizer and preparation method thereof |
| CN103058754B (en) * | 2012-12-26 | 2015-04-22 | 施可丰化工股份有限公司 | Slow-release compound fertilizer applicable to plantation of corn |
-
2012
- 2012-12-26 CN CN201210574341.0A patent/CN103058754B/en active Active
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2013
- 2013-10-14 WO PCT/CN2013/001241 patent/WO2014101265A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| CN101177365A (en) * | 2007-11-01 | 2008-05-14 | 山东农业大学 | Special controlled-release fertilizer for long-acting corn and preparation method thereof |
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103058754A (en) | 2013-04-24 |
| WO2014101265A1 (en) | 2014-07-03 |
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Effective date of registration: 20160622 Address after: 737202 Hexi village, Yongchang County, Jinchang, Gansu Patentee after: Gansu Shikefeng fertilizer Co. Ltd. Address before: 276024 Hangzhou Road, Shandong Road, Linyi Economic Development Zone, Sichuan Province Patentee before: Shikefeng Chemical Industry Co., Ltd. |
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Effective date of registration: 20200609 Address after: 737202 chemical circular economy industrial park, Hexibao Town, Yongchang County, Jinchang City, Gansu Province (intersection of Weiyi road and jingsan Road) Patentee after: GANSU SHIKEFENG ECOLOGICAL TECHNOLOGY Co.,Ltd. Address before: 737202 Hexibao Town, Yongchang County, Jinchang City, Gansu Province Patentee before: GANSU SHIKEFENG NEW FERTILIZER Co.,Ltd. |