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Long-acting slow release fertilizer special for cotton and preparation method thereof

A slow-release fertilizer and long-acting technology, applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of high effective accumulated temperature, sharp increase in nitrogen demand, and low yield per mu, so as to reduce the amount of phosphorus nutrients, reduce input costs, The effect of improving nutrient use efficiency

Inactive Publication Date: 2012-06-13
XINJIANG HUIER AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cotton has the characteristics of a sharp increase in nitrogen demand during the full-blooming period, and an increase in the demand for phosphorus and potassium during the boll-opening period. The main cotton areas in Xinjiang have a dry climate and high effective accumulated temperature. The yield of cotton per mu in Xinjiang is low at 250-265kg / mu with ordinary fertilizers. It cannot meet the needs of Xinjiang cotton for fertilizer during the growth period. It is necessary to provide a fertilizer suitable for Xinjiang cotton according to the local soil conditions in Xinjiang and the growth characteristics of cotton.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The raw material formula of the special long-acting slow-release fertilizer for cotton of the present invention is as follows:

[0020] 296kg monoammonium phosphate, 123kg potassium chloride, 496kg urea, 104kg bentonite (90% montmorillonite by mass percentage) and 8kg long-acting compound fertilizer additive (composed of the following components by mass: 2 parts hydrogen quinone, 12 parts of dicyandiamide, 0.2 part of complex rare earth, 85.8 parts of zeolite powder), wherein: the mass percentage of N element in monoammonium phosphate is 11%, P 2 o 5 The mass percentage is 44%, K in potassium chloride 2 The mass percentage of O is 57%, and the mass percentage of N element in urea is 46.4%.

[0021] The preparation method of special long-acting slow-release fertilizer for cotton of the present invention is as follows:

[0022] The above-mentioned raw materials are continuously fed into the batching bin, and after passing through the automatic batching system, they are...

Embodiment 2

[0024] The raw material formula of the special long-acting slow-release fertilizer for cotton of the present invention is as follows:

[0025] 296kg monoammonium phosphate, 118kg potassium chloride, 495kg urea, 108kg bentonite (90% montmorillonite by mass percentage) and 9kg long-acting compound fertilizer additive (composed of the following components by mass: 5 parts hydrogen quinone, 3 parts of dicyandiamide, 0.1 part of complex rare earth, 70 parts of zeolite powder), wherein: the mass percentage of N element in monoammonium phosphate is 11%, P 2 o 5 The mass percentage is 44%, K in potassium chloride 2 The mass percentage of O is 59.1%, and the mass percentage of N element in urea is 46.5%.

[0026] Its preparation method is identical with embodiment 1.

Embodiment 3

[0028] The raw material formula of the special long-acting slow-release fertilizer for cotton of the present invention is as follows:

[0029] 296kg monoammonium phosphate, 120kg potassium chloride, 494kg urea, 109kg bentonite (90% montmorillonite by mass percentage) and 7kg long-acting compound fertilizer additive (composed of the following components by mass: 8 parts hydrogen quinone, 25 parts of dicyandiamide, 0.8 part of complex rare earth, 95 parts of zeolite powder), wherein: the mass percentage of N element in monoammonium phosphate is 11%, P 2 o 5 The mass percentage is 44%, K in potassium chloride 2 The mass percentage of O is 58.1%, and the mass percentage of N element in urea is 46.55%.

[0030] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to a long-acting slow release fertilizer special for cotton, which comprises, by mass, nitrogen fertilizer active ingredient 25.65, phosphate fertilizer active ingredient 12.7%, potash fertilizer active ingredient 6.8%, bentonite 9.7-10.7% and long-acting compound fertilizer additive 0.68-0.88%, wherein the bentonite contains montmorillonite 85-90% by mass, and the long-acting compound fertilizer additive comprises, by mass, 2-8 parts of hydroquinone, 3-25 parts of dicyandiamide, 0.1-0.8 part of complex rare earth and 70-95 parts of zeolite powder. The invention further provides a preparation method of the long-acting slow release fertilizer. By applying the long-acting slow release fertilizer special for the cotton, boll rate of Xinjiang cotton is improved, the requirements of the cotton to nitrogen fertilizer at full-bloom stage and the requirements of the cotton to phosphate fertilizer and potash fertilizer at boll stage are met, and nitrogen utilization rate and phosphorus utilization rate are both improved remarkably. In addition, the long-acting slow release fertilizer is safe to users, livestock and crops and has no residues in soil and the crops.

Description

technical field [0001] The invention relates to a special long-acting slow-release fertilizer for cotton, and also relates to a preparation method of the long-acting slow-release fertilizer special for cotton. Background technique [0002] Cotton has the characteristics of a sharp increase in nitrogen demand during the full-blooming period, and an increase in the demand for phosphorus and potassium during the boll-opening period. The main cotton areas in Xinjiang have a dry climate and high effective accumulated temperature. The yield of cotton per mu in Xinjiang is low at 250-265kg / mu with ordinary fertilizers. It cannot meet the needs of Xinjiang cotton in the growth period for fertilizers. It is necessary to provide a fertilizer suitable for Xinjiang cotton according to the local soil conditions in Xinjiang and the growth characteristics of cotton. A long-acting compound fertilizer additive is disclosed in the Chinese patent application publication CN1163449A, and the fer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李保强
Owner XINJIANG HUIER AGRI GRP CO LTD
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