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Novel synergetic compound fertilizer and preparation method thereof

A compound fertilizer, a new type of technology, applied in the direction of fertilization device, fertilizer mixture, application, etc., can solve the problems of low fertilizer utilization rate, large amount of fertilization, poor yield increase effect, etc., to improve fertilizer utilization rate, reduce fertilization amount, and reduce pollution Effect

Active Publication Date: 2015-03-25
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Existing γ-polyglutamic acid fertilizers have problems such as large fertilization amount, low fertilizer utilization rate, and poor yield increase effect.

Method used

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  • Novel synergetic compound fertilizer and preparation method thereof
  • Novel synergetic compound fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Formulate special synergistic compound fertilizer for wheat according to the needs of wheat.

[0059] The required materials for making 967kg wheat synergistic compound fertilizer are: γ-polyglutamic acid is 15kg, urea is 300kg, monoammonium phosphate is 210kg, potassium sulfate is 380kg, 45wt% dilute sulfuric acid is 60kg, liquid ammonia is 25kg, A total of 10kg of manganese sulfate and zinc sulfate.

[0060] Proceed as follows:

[0061] 1) Add 300kg of urea, 210kg of monoammonium phosphate, 380kg of potassium sulfate, 60kg of 45wt% dilute sulfuric acid, 25kg of liquid ammonia, 10kg of manganese sulfate and zinc sulfate into the batching system and mix thoroughly, then transfer to the granulation system;

[0062] 2) Add 15kg of γ-polyglutamic acid into the granulation system through the γ-polyglutamic acid adding system and fully mix with other materials;

[0063] 3) The mixture in step 2) is granulated in the granulation system at a temperature of 70°C and a materia...

Embodiment 2

[0069] According to the needs of soybeans, special synergistic compound fertilizers for soybeans are formulated.

[0070] The materials needed to make 945kg of soybean synergistic compound fertilizer are: 20kg of γ-polyglutamic acid, 300kg of urea, 310kg of monoammonium phosphate, 180kg of potassium chloride, 80kg of potassium sulfate, and 45% dilute sulfuric acid 100kg, 7kg liquid ammonia, 3kg manganese sulfate and magnesium sulfate.

[0071] Proceed as follows:

[0072] 1) Add 300kg of urea, 310kg of monoammonium phosphate, 180kg of potassium chloride, 80kg of potassium sulfate, 100kg of 45wt% dilute sulfuric acid, 7kg of liquid ammonia, 3kg of manganese sulfate and magnesium sulfate into the batching system and mix thoroughly, then transfer to the manufacturing in the granular system;

[0073] 2) Add 20kg of γ-polyglutamic acid into the granulation system through the γ-polyglutamic acid adding system and fully mix with other materials;

[0074] 3) The mixture in step 2) ...

Embodiment 3

[0080] According to the needs of potatoes, special synergistic compound fertilizers for potatoes are prepared.

[0081] The materials needed to make 986.25kg potato synergistic compound fertilizer are: 20kg of γ-polyglutamic acid, 220kg of urea, 115kg of monoammonium phosphate, 320kg of potassium chloride, 186kg of potassium sulfate, and 45wt% dilute sulfuric acid It is 25kg, liquid ammonia is 8kg, and manganese sulfate is 6kg.

[0082] Proceed as follows:

[0083] 1) Add 220kg of urea, 115kg of monoammonium phosphate, 320kg of potassium chloride, 186kg of potassium sulfate, 25kg of 45wt% dilute sulfuric acid, 8kg of liquid ammonia, and 6kg of manganese sulfate into the batching system and mix thoroughly, then transfer to the granulation system ;

[0084] 2) Add 20kg of γ-polyglutamic acid into the granulation system through the γ-polyglutamic acid adding system and fully mix with other materials;

[0085] 3) The mixture in step 2) is granulated in the granulation system at...

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Abstract

The invention relates to a novel synergetic compound fertilizer and a preparation method thereof. The compound fertilizer mainly consists of gamma-polyglutamic acid, urea, monoammonium phosphate, potash fertilizer, 45% dilute sulphuric acid by weight, liquid ammonia and trace element sulfate. The preparation method comprises the following steps of: firstly uniformly mixing the urea, monoammonium phosphate, potash fertilizer, 45% dilute sulphuric acid by weight, liquid ammonia and trace element sulfate according to the proportions; adding the gamma-polyglutamic acid into the mixture and mixing uniformly; granulating to form the semi-finished product of compound fertilizer particles; and performing primary screening, drying, cooling, secondary screening and enveloping, and quantitatively packing in bags. Through the invention, the utilization rate and the sustained release effect of the fertilizer can be improved, the application amount of the fertilizer is reduced, the environmental problem caused by massive application is avoided, and the cost of agricultural production is saved. The compound fertilizer is obtained by adding microorganism synthetic gamma-polyglutamic acid into common compound fertilizer; and the technology is ecological and environment-friendly, simple and low in operation cost, and has the advantages of good fertilizer synergism and sustained-release effects and the like.

Description

technical field [0001] The invention belongs to the field of agricultural compound fertilizers, and particularly relates to a novel synergistic compound fertilizer capable of reducing environmental pollution, increasing the residence time of fertilizers in soil, and promoting crop absorption and a preparation method thereof. Background technique [0002] my country is a bio-intensive agriculture, and agricultural production is highly dependent on chemical fertilizers. At present, the annual amount of chemical fertilizers (converted into pure quantities) reaches 43 million tons, accounting for 1 / 3 of the global fertilizer use, ranking first in the world. Since 1980, the amount of chemical fertilizers used in my country has grown at an average annual rate of 4%, and the amount of fertilizer per unit area is more than three times the world's average level. my country's use of 9% of the world's land consumes 32% of the world's total chemical fertilizers . In addition, the season...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 张树清张文刘培京
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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