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Multifunctional synergist of compound fertilizer

A technology of compound fertilizer and synergist, applied in fertilizer mixture, fertilization device, application and other directions, can solve the problems of adverse effects on soil quality, poor effectiveness of stable crops, water retention, fertilizer saving, limited effect of increasing production, etc. Nutritional disorder, prolongation of supply period, and effect of improving utilization efficiency

Active Publication Date: 2012-07-11
SHIKEFENG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of fertilizer synergist is mainly based on ore powder, and uses alkaline sodium salt (sodium humate), so it has limited effects in water retention, fertilizer saving, and production increase. Long-term large-scale application may also affect soil quality. adversely affect
At the same time, trace elements exist in inorganic state or EDTA chelated state, in most cases, especially in calcareous soil, the stability and effectiveness to crops are poor

Method used

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  • Multifunctional synergist of compound fertilizer
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Synergist composition: polyacrylamide 55.0kg, citric acid 20.0kg, 2-chloro-6-trichloromethylpyridine (CP) 15.0kg, polyammonium borate 6.0kg, EDDHA-Fe 3.0kg, EDDHA-Zn 1.0kg .

[0023] Preparation method: Take 55.0kg of polyacrylamide, 20.0kg of citric acid, 15.0kg of 2-chloro-6-trichloromethylpyridine (CP), 6.0kg of polyammonium borate, 3.0kg of EDDHA-Fe, 1.0kg of EDDHA-Zn, After pulverizing or grinding to make the particle size reach 100-200 meshes, and fully stirring after mixing, the multifunctional compound fertilizer synergist is obtained.

[0024] Application method: In the manufacturing process of compound fertilizer, the synergist is added to the raw materials according to 2% of the total mass of the fertilizer and mixed thoroughly. The obtained compound fertilizer is a multifunctional long-acting slow-release compound fertilizer. Apply to calcareous soil in arid and semi-arid areas according to conventional fertilization methods.

Embodiment 2

[0026] Synergist composition: polyacrylamide 30.0kg potassium polyacrylate 15.0kg, citric acid 15.0kg, ammonium citrate 10.0kg, 2-amino-4-chloro-6-methylpyrimidine (AM) 20.0kg, polyammonium borate 5.0kg , EDDHA-Fe 2.5kg, EDDHA-Zn 2.5kg.

[0027] Preparation method: take polyacrylamide 30.0kg potassium polyacrylate 15.0kg, citric acid 15.0kg, ammonium citrate 10.0kg, 2-amino-4-chloro-6-methylpyrimidine (AM) 20.0kg, polyammonium borate 5.0kg, EDDHA-Fe 2.5kg and EDDHA-Zn 2.5kg are respectively pulverized or ground to make the particle size reach 100-200 meshes, and fully stirred after mixing to obtain the multifunctional compound fertilizer synergist.

[0028] Application method: In the manufacturing process of compound fertilizer, add the synergist to the raw materials at 2.5% of the total mass of the fertilizer and stir it evenly. The compound fertilizer obtained is a multifunctional long-acting slow-release compound fertilizer. Apply to calcareous soil in arid and semi-arid areas ...

Embodiment 3

[0030] Synergist composition: potassium polyacrylate 40.0kg, starch graft polyacrylamide 25.0kg, citric acid 10.0kg, ferric ammonium citrate 5.0kg, 3,4-dimethylpyrazole phosphate (DMPP) 10.0kg, poly Ammonium borate 4.0kg, potassium polyborate 2.0kg, EDDHA-Fe 2.5kg, EDDHA-Zn 1.0kg, EDDHA-Mn 0.5kg.

[0031] Preparation method: Take 40.0kg potassium polyacrylate, 25.0kg starch graft polyacrylamide, 10.0kg citric acid, 5.0kg ferric ammonium citrate, 10.0kg 3,4-dimethylpyrazole phosphate (DMPP), polyboric acid Ammonium 4.0kg, potassium polyborate 2.0kg, EDDHA-Fe 2.5kg, EDDHA-Zn 1.0kg, EDDHA-Mn 0.5kg, respectively, after pulverization or grinding to make the particle size reach 100-200 mesh, and stir well after mixing. The multifunctional compound fertilizer synergist is obtained.

[0032] Application method: In the manufacturing process of compound fertilizer, the synergist is added to the raw materials according to 1.5% of the total mass of the fertilizer and fully stirred. The obtain...

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Abstract

The invention relates to the technical field of agricultural fertilizer, particularly to a multifunctional synergist of a compound fertilizer suitable for calcareous soil of dry land, and application of the multifunctional synergist. The synergist is composed of, in percentage by mass, 40-70% of super-absorbent resin, 15-25% of citric acid and the salts thereof, 10-20% of a nitrification inhibitor, 4-10% of polyborate and 1-5% of EDDHA (ethylenediamine di-o-phenyl acetate)-microelement chelate. The synergist prepared according to the invention can be used as an additive of a compound fertilizer or applied together with various common compound fertilizers or formula fertilizers to exert the function of preventing and controlling the loss ways of nitrogen, phosphorus and potassium simultaneously, and can realize one-time total-nutrient fertilizer application; and the synergist has multiple functions of stabilizing fertilizer by slow release, holding water and resisting drought, improving soil with nutrients, saving labour, increasing production, etc.

Description

Technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a multifunctional compound fertilizer synergist suitable for use in dryland calcareous soil. Background technique [0002] Fertilizer plays a pivotal role in agricultural production. According to the statistics of the Food and Agriculture Organization of the United Nations (FAO), fertilizers account for 40%-60% of the agricultural production increase share. In fact, fertilizer input usually accounts for more than 50% of the input of agricultural production materials. Compared with western developed countries, my country still has a big gap in fertilizer types, fertilizer quality, production technology and cost. There are many problems in fertilizer application, such as imbalance, unreasonable structure, and low fertilizer utilization. The waste of resources is serious, and the pollution of fertilizers to the environment is aggravated. At the same time, the cost of ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 张金水解永军周军同延安
Owner SHIKEFENG CHEM IND
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