Slow release/controlled release fertilizer for regulating and controlling crop nutrition all the time and preparation method thereof

A technology for crop nutrition and controlled-release fertilizers, applied in the fields of botanical equipment and methods, fertilizer forms, fertilizer mixtures, etc., can solve the problems of complex process, difficult to popularize in a large area, and high production cost, and achieve long-term fertilizer effect release time and reduce costs. , the effect of the simple method

Inactive Publication Date: 2005-01-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Coated slow-release / controlled-release fertilizers at home and abroad have methods such as microcapsules, filler filling, and then polymer coating, fertilizer wrapping fertilizers, etc. The above methods are complex in process, require precise metering, high production costs, and difficult to promote on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1: preparation seedling turns green manure

[0075] Ammonium phosphate: 16%;

[0076] Urea: 53.32%;

[0077] Potassium chloride: 21%;

[0078] Calcium magnesium phosphate fertilizer: 4%;

[0079] Boric acid: 1.2%;

[0080] Zinc sulfate: 0.6%;

[0081] Manganese sulfate: 0.8%;

[0082] Magnesium oxide: 1.2%;

[0083] Binder: 1.2%;

[0084] Active agent: 0.25%;

[0085] Solubilizer: 0.23%;

[0086] Conditioning agent: 0.2%

[0087] Weigh various ingredients in proportion, crush them to 60-80 mesh by crusher, send them to the mixer for mixing, spray 0.25% active agent and 0.23% solubilizer, and send them to extrusion granulator or drum granulator to form balls Φ3~5mm. The granulated material is sent to the dryer for drying, and then the dried material is screened, and the finished material is sent to the cooler through the conveyor belt, and finally enters the mixing b...

Embodiment 2

[0088] Embodiment 2: prepare tillering manure

[0089] Ammonium phosphate: 15%;

[0090] Urea: 40%;

[0091] Potassium chloride: 30%;

[0092] Calcium magnesium phosphate fertilizer: 5.2%;

[0093] Boric acid: 1.2%;

[0094] Zinc sulfate: 0.6%;

[0095] Manganese sulfate: 0.8%;

[0096] Magnesium oxide: 1.2%;

[0097] Binder: 4%;

[0098] Coating agent: 1.2%;

[0099] Water-soluble polymers: 0.3%.

[0100] Weigh various ingredients according to the proportion, crush them to 60-80 mesh by the crusher, send them to the mixer for mixing, through the PLC automatic control system, spray water-soluble polymer materials according to the material flow and mix them, and send them to the extrusion granulator or drum mill In the granulator, the pellets are Φ3~5mm. The granulated material is sent to the drum dryer fo...

Embodiment 3

[0101] Embodiment 3: prepare heading and firm fertilizer

[0102] Ammonium phosphate: 29%;

[0103] Urea: 21.7%;

[0104] Ammonium molybdate: 0.5%;

[0105] Potassium chloride: 28%;

[0106] Calcium magnesium phosphate fertilizer: 10.8%;

[0107] Boric acid: 1.2%;

[0108] Zinc sulfate: 0.6%;

[0109] Manganese sulfate: 0.8%;

[0110] Magnesium oxide: 1.2%;

[0111] Binder: 2.4%.

[0112] Coating agent: 1.38%;

[0113] Water-soluble polymers: 2.42%.

[0114] Weigh various ingredients according to the proportion, crush them to 60-80 mesh by the crusher, send them to the mixer for mixing, through the PLC automatic control system, spray water-soluble polymer materials according to the material flow and mix them, and send them to the extrusion granulator or drum In the granulator, the pellets are Φ3~...

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PUM

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Abstract

The invention relates to a slow release/controlled release fertilizer for regulating and controlling crop nutrition all the time and preparation method thereof, wherein the fertilizer comprises a framework integument and exterior film using three proportions of nitrogen, phosphor and potassium as the core, and different integument material, integument processes and different emancipation systems are employed, the fertilizer also comprises a releasing bundle layer for controlling the fertilizer, addition agent, binding agent with adhesive action, amendment agent, solubilizing agent and active agent.

Description

technical field [0001] The invention relates to a slow-release / controlled-release fertilizer for fully regulating crop nutrition, and to a preparation method of the slow-release / controlled-release fertilizer for fully regulating crop nutrition. Background technique [0002] China is the country that consumes the most chemical fertilizers in the world. In 1999, the total consumption of chemical fertilizers was 41.2458 million tons (converted to pure), and according to the survey of 782 field test sites in the country by the Nanjing Soil Institute of the Chinese Academy of Sciences, the fertilizer utilization rate in my country is 28-41%. The lowest is only 16-22%, and fertilizer is the grain of crops. According to the statistics of the United Nations Food and Agriculture Organization (FAO), chemical fertilizers contribute 40% to food production. China can feed 22% of the world's population with 7% of the world's arable land It should be said that half of the population is due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22C05G3/00C05G5/00
Inventor 朱泽华何翼云张新湘周端午袁明俊王哲丹周代红潘长华戴建新杨方文王克坚盛伟成
Owner CHINA PETROLEUM & CHEM CORP
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