CN103058753A - Slow release compound fertilizer applicable to plantation of soybeans - Google Patents
Slow release compound fertilizer applicable to plantation of soybeans Download PDFInfo
- Publication number
- CN103058753A CN103058753A CN2012105743092A CN201210574309A CN103058753A CN 103058753 A CN103058753 A CN 103058753A CN 2012105743092 A CN2012105743092 A CN 2012105743092A CN 201210574309 A CN201210574309 A CN 201210574309A CN 103058753 A CN103058753 A CN 103058753A
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- Prior art keywords
- fertilizer
- preparation
- phosphate
- floats
- powder
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
Abstract
The invention provides a slow release compound fertilizer applicable to plantation of soybeans. The slow release compound fertilizer is a mixture of a plurality of fertilizers containing substances which exert influence on nitrification of urea in soil and components with no special fertilizer efficiency and is prepared from the following raw materials by mass: 20 to 40 parts of urea, 7 to 20 parts of ammonium sulfate, 10 to 35 parts of potassium sulfate, 25 to 30 parts of a mixed phosphate fertilizer, 0.1 to 0.5 part of a zinc, iron and molybdenum additive, 7 to 10 parts of a granulating agent and a proper amount of water. A preparation method for the slow release 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. The slow release compound fertilizer applicable to plantation of soybeans provided by the invention has excellent slow releasing performance, can fully satisfy demands for nutrients by soybeans, enables a high fertilizer utilization rate to be obtained, improves both output and quality of soybeans, saves resources and protects the environment.
Description
Technical field
The present invention is a kind of slow-release compound fertilizer that soybean planting is used that is suitable for.The multiple fertilizer that belongs to the material that contains influential urea nitrification in soil and mixture without special fertilizer efficiency component.
Background technology
Soybean is important food crop and cash crop, and its output and cultivated area are only second to paddy rice, wheat, and corn occupies the 4th in the world.In the people's livelihood and national economy, occupy critical role.In recent years, the develop rapidly of livestock and poultry breeding industry, corresponding feed industry is in to the demand of dregs of beans that supply falls short of demand, short state.Effectively utilize the Limited Land resource, the yield and quality that improves soybean crops is the direction that people make great efforts.
The needed nitrogen of soybeans they grow unit have quite a few by with the fixed nitrogen mechanism supply of the rihizobium japonicum of its symbiosis.Demand percentage to NPK fertilizers is obviously different from other conducts.In addition, iron, zinc and molybdenum element are the requisite trace elements of Soybean production.
Because the nitrogen fixation of rihizobium japonicum, people have produced a kind of prejudice, cause laying particular stress on using phosphate fertilizer and potash fertilizer.In fact, the growth of soybean is the more crop of demand nitrogen element, and after fertility early stage and the decline of late growth stage root nodule, all needing has sufficient nitrogen element supply, must realize by fertilising.
The high-quality nitrogenous fertilizer that urea is nitrogenous height, fertilizer efficiency is fast, consumption is large.But, urea in use, run off by approach such as volatilization, leaching, decomposition and runoffs easily, cause the fertilizer efficiency utilization ratio not high, according to statistics, the this season utilization ratio only has about 30%, and this has not only caused the waste of chemical fertilizer, and the environment of depending on for existence for mankind such as atmosphere, water body soil.
In order to solve the problems of the technologies described above, at present, sulphur and the various macromolecule resins of adopting carry out the coating processing to urea more both at home and abroad.Perhaps add uric acid inhibitor and nitrification inhibitor; Utilize the material coated even multilayer coating of the high molecular polymers such as cyclochloride resin, acrylic resin or severally comprise that fertiliser granulates mixing etc. forms sustained-release and controlled release fertilizer; Coated fertilizer is difficult in degraded in soil edatope be worked the mischief.And complex process, manufacturing cost is high, contaminate environment.
Chinese patent application number 201110021688.8 " biodegradable coated ureas " of Shikefeng Chemical Industry Co., Ltd.'s application have successfully solved the above problem that urea nitrogenous fertilizer exists, the stearic acid that utilization can be degraded under the soil microorganisms effect is as the coated fertilizer of nitrogenous fertilizer urea, provide a kind of coated fertilizer biodegradable, pollution-free, can improve again the biodegradable coated urea product of the utilization ratio of fertilizer.But it is a kind of high-quality nitrogenous fertilizer, and nutritive ingredient is single, can not be as the slow release fertilizer that is suitable for soybean planting and uses.
Phosphorus is the important composition element of cytoplasmic biomolecule, also is the requisite a kind of element of plant-growth.Phosphatic rock is the main raw mineral materials of making phosphate fertilizer and extracting phosphorus and compound thereof; But make phosphate fertilizer and require phosphatic rock P
2O
5〉=28%; Extract the phosphatic rock P that phosphorus and compound thereof require
2O
5Content higher.
And along with the development of phosphorus chemical product and Phosphate Fertilizer Industry, the ground phosphate rock requirement increases sharply, and the higher-grade phosphate rock resource is deficient.The mode of production that only depends on rich phosphorus ore can not meet the demands.In this case, the development and use 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, there is following deficiency in fertilizer special for soybeans of the prior art:
1.. the multilayer coating, complex manufacturing, investment is large, production cost is high.
2. coated fertilizer hard degradation, life-time service can bring negative impact to soil; Even soil polluted, affect the quality of agricultural-food.
3. the main nutrient elements proportioning in the fertilizer is not mated for the demand in each stage of soybeans they grow, and the fertilizer efficiency utilization ratio is low.
4. lack necessary trace element, the hypotrophy face affects output increased.
5. be suitable for the slow-release compound fertilizer that soybean planting is used, the fertilizer that improves soybean yields and quality is also rare.
Summary of the invention
The object of the invention is to avoid above-mentioned weak point of the prior art; overcome traditional prejudice, reduce production costs, excellent environment protection; and provide a kind of comprehensive nutrition; sustained release performance is excellent; can fully satisfy soybean to the demand of nutrient; bring into play to greatest extent the effectiveness of fertilizer, can improve the multiple and fertilizer of slowly-releasing that soybean planting is used that is suitable for that soybean yields can improve again its quality.
Purpose of the present invention can reach by following measure:
A kind of slow-release compound fertilizer that soybean planting is used that is suitable for of the present invention is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate % 35～60
Fused(calcium magnesium)phosphate % 10～25
Floats % 30～40
Described floats are P
2O
5The low grade rock phosphate of content between 10%～20%;
Described zinc, iron, molybdenum additives are the water-soluble salts of zinc, iron, molybdenum;
Described granulation aid is comprised of the wilkinite of 70%-85% and the bauxitic clay powder mixing of 30%-15%;
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
At first behind urea 20～40 weight part heating and meltings, add ammonium sulfate 7～20 weight parts and vitriolate of tartar 10～35 weight parts and mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, sulphur, ammonium, for subsequent use;
2.. the mixed phosphorus fertilizer preparation
A. the preparation of floats
To contain P
2O
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 orders ± 10, and is for subsequent use;
B. mix
With floats 30～40 weight part mixings of diammonium phosphate 35～60 weight parts, fused(calcium magnesium)phosphate 10～25 weight parts and step a preparation, for subsequent use;
3.. the preparation of each component composite grain of compound manure
Mixed phosphorus fertilizer 25～30 weight parts that 2. potash fertilizer, nitrogenous fertilizer mixture and the step that 1. step is prepared prepare, zinc, iron, molybdenum additives 0.1～0.5 weight part and granulation aid 7～10 weight parts are evenly mixed, add suitable quantity of water, utilize traditional tablets press with each component mixing granulation of described compound manure, for subsequent use;
4.. stearic acid is filmed
Stearic consumption is 0.5%～3.0% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating after according to the prescription accurate-metering, in the input stearic acid fusion tank, is heated to molten state with stearic acid, and is for subsequent use;
B.. coating
3. each the component composite grain of compound manure for preparing according to prescription accurate-metering step, melting stearic acid with step a preparation carries out spraying outside the particle in drum-type mixing granulation machine, makes the composite grain outside surface form as far as possible uniformly coating, warm air drying, the cooling of room temperature wind, for subsequent use; Processing condition are as follows:
The warm air drying temperature is not higher than 80 ℃
The cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the face powder preparation of mixed powder
According to Magnesium Stearate 1.2%～2.7%, the proportioning raw materials of zeolite powder 97.3%～98.8% accurately takes by weighing respectively each component of raw material, mix, and grinding flour, the control powder fineness is crossed 120 mesh sieves, and is for subsequent use;
B. the coating of applying powder
The mixed powder consumption of step a preparation is controlled at each component composite grain face powder 10～15kg of compound manure that 3. every 1000kg step prepares;
6.. screening, metering, quality test, qualified rear packing makes and is suitable for the slow-release compound fertilizer that soybean planting is used; The products obtained therefrom particle appearance is mellow and full, the product free from extraneous odour;
Quality product reaches following technical indicator:
Crop growth is except demand N, P, K nutritive element, and S, Ca also are that demand is large and are that plant generates indispensable nutritive element.Sulphur is the important composition that consists of protein, and calcium is being brought into play irreplaceable vital role to the rudiment of plant seed and the growth of organ.S, Ca element enter the compound manure component, all can produce positively effect at plant growth, prevention and elimination of disease and pests and improvement soil aspect many.
Element sulphur in the composition of raw materials of the present invention adds with the form of soluble sulphate, and large percentage, and the fourth-largest nutritive element that plant growth is necessary directly provides the sulphur nutrient for soybean grows up.Phosphatic rock component in the prescription mixed phosphorus fertilizer provides calcium constituent simultaneously except containing phosphoric, with other components in the composition of raw materials, compatibility is good, is fit to soybeans they grow.To improving output and the quality of soybean.Made contribution.
Purpose of the present invention can also reach by following measure:
Of the present inventionly be suitable for the slow-release compound fertilizer that soybean planting is used, it is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate 35～45
Fused(calcium magnesium)phosphate 20～25
Floats 35～40.
It is preferred technical scheme.
Of the present inventionly be suitable for the slow-release compound fertilizer that soybean planting is used, it is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate 35
Fused(calcium magnesium)phosphate 25
Floats 40.
It is optimum technical scheme.
The application process that is suitable for the slow-release compound fertilizer that soybean planting uses of the present invention, it is characterized in that disposable employed, 45-50Kg/ mu.
Of the present inventionly be suitable for the slow-release compound fertilizer that soybean planting is used, compared to existing technology by following positively effect:
1. a kind of comprehensive nutrition is provided; sustained release performance is excellent, can fully satisfy soybean to the demand of nutrient, brings into play to greatest extent the effectiveness of fertilizer; can improve soybean yields and can improve again its quality, namely economize on resources, protection of the environment is suitable for the slow-release compound fertilizer that soybean planting is used again.
2. individual layer coating, generating process is simple, low equipment investment, production cost is low.
3. coated fertilizer can be degraded under the soil microorganisms effect, has avoided the pollution of coated fertilizer to edatope.
4. the main nutrient elements reasonable ratio in the fertilizer, the element sulphur in the composition of raw materials adds with the form of soluble sulphate, and large percentage, and the fourth-largest nutritive element that plant growth is necessary is for soybean directly provides the sulphur nutrient.The fertilizer efficiency utilization ratio is high, improves output and the quality of soybean.
5. adopt the raw material of low grade as fertilizer sources.The higher-grade phosphate rock resource of saves valuable.The while protection of the environment.
6. because of chloride ion-containing not, be used for fertilizer special for soybeans, have the effect of increasing production and improying productivity.Average mu volume increase 4.7%-12.3%.
7. overcome soybean crops laid particular stress on and used phosphate fertilizer and potash fertilizer, and ignored the prejudice of applied nitrogen.
Embodiment
The present invention will now be further detailed embodiment:
Embodiment 1
Prepare the slow-release compound fertilizer that soybean planting is used that is suitable for of the present invention according to the following step.
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
At first behind the urea 35 weight part heating and meltings, add ammonium sulfate 15 weight parts and vitriolate of tartar 22 weight parts and mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, sulphur, ammonium, for subsequent use;
2.. the mixed phosphorus fertilizer preparation
A. the preparation of floats
To contain P
2O
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 orders ± 10, and is for subsequent use;
B. mix
With the floats 40 weight part mixings of diammonium phosphate 35 weight parts, fused(calcium magnesium)phosphate 25 weight parts and step a preparation, for subsequent use;
3.. the preparation of each component composite grain of compound manure
Mixed phosphorus fertilizer 20 weight parts that 2. potash fertilizer, nitrogenous fertilizer mixture and the step that 1. step is prepared prepare, zinc, iron, molybdenum additives 0.5 weight part and granulation aid 7～10 weight parts are evenly mixed, add suitable quantity of water, utilize traditional tablets press with each component mixing granulation of described compound manure, for subsequent use;
4.. stearic acid is filmed
Stearic consumption is 0.5%～3.0% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating after according to the prescription accurate-metering, in the input stearic acid fusion tank, is heated to molten state with stearic acid, and is for subsequent use;
B.. coating
3. each the component composite grain of compound manure for preparing according to prescription accurate-metering step, melting stearic acid with step a preparation carries out spraying outside the particle in drum-type mixing granulation machine, makes the composite grain outside surface form as far as possible uniformly coating, warm air drying, the cooling of room temperature wind, for subsequent use; Processing condition are as follows:
The warm air drying temperature is not higher than 80 ℃
The cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the face powder preparation of mixed powder
According to Magnesium Stearate 1.2%～2.7%, the proportioning raw materials of zeolite powder 97.3%～98.8% accurately takes by weighing respectively each component of raw material, mix, and grinding flour, the control powder fineness is crossed 120 mesh sieves, and is for subsequent use;
B. the coating of applying powder
The mixed powder consumption of step a preparation is controlled at each component composite grain face powder 10～15kg of compound manure that 3. every 1000kg step prepares;
6.. screening, metering, quality test, qualified rear packing makes and is suitable for the slow-release compound fertilizer that soybean planting is used; The products obtained therefrom particle appearance is mellow and full, the product free from extraneous odour;
Quality product reaches following technical indicator:
Embodiment 2～embodiment 7
According to method and the step of embodiment 1, prepare the slow-release compound fertilizer that soybean planting is used that is suitable for of the present invention according to the composition of raw materials of table 1
Table 1
Make and be suitable for the slow-release compound fertilizer that soybean planting is used; The products obtained therefrom particle appearance is mellow and full, the product free from extraneous odour;
Quality product reaches following technical indicator:
Through using evidence, improve the output 5.3%～13.7% of soybean.
Claims (4)
1. one kind is suitable for the slow-release compound fertilizer that soybean planting is used, and it is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate % 35～60
Fused(calcium magnesium)phosphate % 10～25
Floats % 30～40
Described floats are P
2O
5The low grade rock phosphate of content between 10%～20%;
Described zinc, iron, molybdenum additives are the water-soluble salts of zinc, iron, molybdenum;
Described granulation aid granulating agent is comprised of the wilkinite of 70%-85% and the bauxitic clay powder mixing of 30%-25%;
Its preparation method comprises the steps:
1.. the preparation of potash fertilizer, nitrogenous fertilizer mixture
At first behind urea 20～40 weight part heating and meltings, add ammonium sulfate 7～20 weight parts and vitriolate of tartar 10～35 weight parts and mix, make the potash fertilizer, the nitrogenous fertilizer mixture that contain potassium, sulphur, ammonium, for subsequent use;
2.. the mixed phosphorus fertilizer preparation
A. the preparation of floats
To contain P
2O
510%～20% phosphatic rock grinds, the fineness of floats is controlled 100 orders ± 10, and is for subsequent use;
B. mix
With floats 30～40 weight part mixings of diammonium phosphate 35～60 weight parts, fused(calcium magnesium)phosphate 10～25 weight parts and step a preparation, for subsequent use;
3.. the preparation of each component composite grain of compound manure
The floats that 2. potash fertilizer, nitrogenous fertilizer mixture and the step that 1. step is prepared prepare are evenly mixed, utilize traditional tablets press with each component mixing granulation of described compound manure, and are for subsequent use;
4.. stearic acid is filmed
Stearic consumption is 1.0%～3.0% of each component composite grain quality of compound manure of 3. preparing of step, and coating method is as follows:
A.. the stearic preparation of melting
Coating after according to the prescription accurate-metering, in the input stearic acid fusion tank, is heated to molten state with stearic acid, and is for subsequent use;
B.. coating
3. each the component composite grain of compound manure for preparing according to prescription accurate-metering step, melting stearic acid with step a preparation carries out spraying outside the particle in drum-type mixing granulation machine, makes the composite grain outside surface form as far as possible uniformly coating, warm air drying, the cooling of room temperature wind, for subsequent use; Processing condition are as follows:
The warm air drying temperature is not higher than 80 ℃
The cooling draught temperature is not higher than 50 ℃;
5.. modified zeolite powder powder body material face powder
A. the face powder preparation of mixed powder
According to Magnesium Stearate 1.2%～2.7%, the proportioning raw materials of zeolite powder 97.3%～98.8% accurately takes by weighing respectively each component of raw material, mix, and grinding flour, the control powder fineness is crossed 120 mesh sieves, and is for subsequent use;
B. the coating of applying powder
The mixed powder consumption of step a preparation is controlled at each component composite grain face powder 10～15kg of compound manure that 3. every 1000kg step prepares;
6.. screening, metering, quality test, qualified rear packing makes and is suitable for the slow-release compound fertilizer that soybean planting is used; The products obtained therefrom particle appearance is mellow and full, the product free from extraneous odour;
Quality product reaches following technical indicator:
According to claim 1 be suitable for the slow-release compound fertilizer that soybean planting is used, it is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate 35～45
Fused(calcium magnesium)phosphate 20～25
Floats 35～40.
According to claim 1 be suitable for the slow-release compound fertilizer that soybean planting is used, it is characterized in that being made by following raw material according to the mass fraction meter:
Wherein:
Described mixed phosphorus fertilizer is composited by diammonium phosphate, fused(calcium magnesium)phosphate and floats, and its mass percent is for example lower:
Diammonium phosphate 35
Fused(calcium magnesium)phosphate 25
Floats 40.
4. the using method that is suitable for the slow-release compound fertilizer that soybean planting uses of a claim 1 is characterized in that disposable employed 45～50Kg/ mu.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574309.2A CN103058753B (en) | 2012-12-26 | 2012-12-26 | Slow release compound fertilizer applicable to plantation of soybeans |
| PCT/CN2013/001242 WO2014101266A1 (en) | 2012-12-26 | 2013-10-14 | Slow-release compound fertilizer applicable to plantation of soybeans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574309.2A CN103058753B (en) | 2012-12-26 | 2012-12-26 | Slow release compound fertilizer applicable to plantation of soybeans |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103058753A true CN103058753A (en) | 2013-04-24 |
| CN103058753B CN103058753B (en) | 2015-04-22 |
Family
ID=48101688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210574309.2A Active CN103058753B (en) | 2012-12-26 | 2012-12-26 | Slow release compound fertilizer applicable to plantation of soybeans |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103058753B (en) |
| WO (1) | WO2014101266A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601561A (en) * | 2013-10-31 | 2014-02-26 | 界首市联发种植专业合作社 | Soybean organic composite fertilizer prepared specifically for North China Plain soil |
| WO2014101266A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Slow-release compound fertilizer applicable to plantation of soybeans |
| CN105272647A (en) * | 2015-11-13 | 2016-01-27 | 张彦优 | Controlled-release compound fertilizer special for soybeans and preparation method thereof |
| CN105777271A (en) * | 2016-03-31 | 2016-07-20 | 太仓市永发农场专业合作社 | High nutrition agricultural compound fertilizer and preparation method thereof |
| CN106588399A (en) * | 2017-02-09 | 2017-04-26 | 合肥隆扬农业科技有限公司 | Compound fertilizer suitable for soybean planting and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540463A (en) * | 2019-09-19 | 2019-12-06 | 李清华 | Composite fertilizer suitable for soybean planting and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121620A (en) * | 2007-08-15 | 2008-02-13 | 陈温福 | Special charcoal-base slow release fertilizer for soybean and preparation method thereof |
| CN101177365A (en) * | 2007-11-01 | 2008-05-14 | 山东农业大学 | Long-acting special controlled release fertilizer for 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 |
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| CN101182265A (en) * | 2007-12-05 | 2008-05-21 | 天津市中天化肥有限公司 | Method for producing three-layer coated soybean fertilizer |
| 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 |
| CN103058753B (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 soybeans |
-
2012
- 2012-12-26 CN CN201210574309.2A patent/CN103058753B/en active Active
-
2013
- 2013-10-14 WO PCT/CN2013/001242 patent/WO2014101266A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121620A (en) * | 2007-08-15 | 2008-02-13 | 陈温福 | Special charcoal-base slow release fertilizer for soybean and preparation method thereof |
| CN101177365A (en) * | 2007-11-01 | 2008-05-14 | 山东农业大学 | Long-acting special controlled release fertilizer for 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101266A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Slow-release compound fertilizer applicable to plantation of soybeans |
| CN103601561A (en) * | 2013-10-31 | 2014-02-26 | 界首市联发种植专业合作社 | Soybean organic composite fertilizer prepared specifically for North China Plain soil |
| CN105272647A (en) * | 2015-11-13 | 2016-01-27 | 张彦优 | Controlled-release compound fertilizer special for soybeans and preparation method thereof |
| CN105777271A (en) * | 2016-03-31 | 2016-07-20 | 太仓市永发农场专业合作社 | High nutrition agricultural compound fertilizer and preparation method thereof |
| CN106588399A (en) * | 2017-02-09 | 2017-04-26 | 合肥隆扬农业科技有限公司 | Compound fertilizer suitable for soybean planting and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103058753B (en) | 2015-04-22 |
| WO2014101266A1 (en) | 2014-07-03 |
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