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Multifunctional synergist of compound fertilizer

A technology of compound fertilizer and synergist, which is applied in fertilizer mixture, fertilization device, application and other directions, can solve the problems of poor stability of crops, adverse effects on soil quality, water retention, fertilizer saving, and limited effect of increasing yield, etc. Effects of nutritional barriers, improved utilization efficiency, and prolonged supply period

Active Publication Date: 2013-12-04
SHIKEFENG CHEM IND CO LTD
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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
  • Multifunctional synergist of compound fertilizer

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 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, After pulverizing or grinding, the particle size reaches 100-200 mesh, and after mixing, fully stir evenly to obtain the multifunctional compound fertilizer synergist.

[0024] Application method: In the process of compound fertilizer manufacturing, the synergist is added to the raw materials according to 2% of the total mass of the fertilizer and fully stirred evenly. 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-amino4-chloro-6-methylpyrimidine (AM) 20.0kg, polyammonium borate 5.0kg , EDDHA-Fe 2.5kg, EDDHA-Zn 2.5kg.

[0027] Preparation method: Take 30.0kg of polyacrylamide, 15.0kg of potassium polyacrylate, 15.0kg of citric acid, 10.0kg of ammonium citrate, 20.0kg of 2-amino4-chloro-6-methylpyrimidine (AM), 5.0kg of ammonium polyborate, 2.5kg of EDDHA-Fe and 2.5kg of EDDHA-Zn are respectively crushed or ground to make the particle size reach 100-200 mesh, and after mixing, they are fully stirred evenly to obtain the multifunctional compound fertilizer synergist.

[0028]Application method: In the process of compound fertilizer manufacturing, the synergist is added to the raw materials according to 2.5% of the total mass of the fertilizer and fully stirred evenly. The obtained compound fertilizer is a multifunctional long-acting slow-release compound ferti...

Embodiment 3

[0030] Synergist composition: potassium polyacrylate 40.0kg, starch grafted 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 of potassium polyacrylate, 25.0kg of starch-grafted polyacrylamide, 10.0kg of citric acid, 5.0kg of ferric ammonium citrate, 10.0kg of 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 crushed or ground to make the particle size reach 100-200 mesh, fully stir after mixing, The multifunctional compound fertilizer synergist is obtained.

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

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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 soils. Background technique [0002] Fertilizers play a pivotal role in agricultural production. According to the statistical results of the Food and Agriculture Organization of the United Nations (FAO), the role of fertilizers in the increase in agricultural production should account for 40%-60%. In fact, fertilizer input usually accounts for more than 50% of agricultural production materials input. Compared with western developed countries, there is still a large gap in fertilizer types, fertilizer quality, production technology and cost in my country. There are many problems in fertilizer application, such as imbalanced proportion, irrational structure, and low fertilizer utilization rate, which not only cause The waste of resources is serious, and the pollution of fertiliz...

Claims

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Application Information

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