Special base fertilizer for spring corn and preparation method thereof

A technology of special fertilizer and base fertilizer, applied in the field of preparation of special fertilizer for spring corn base fertilizer, can solve problems such as unsatisfactory fertilizer efficiency and lack of pertinence, and achieve the effects of excellent slow release performance, control of diseases and insect pests, and slow release.

Inactive Publication Date: 2012-12-19
酉阳县农人生态农业有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing coated fertilizers lack pertinence, resulting in unsatisfactory fertilizer efficiency

Method used

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Embodiment Construction

[0017] A preparation method of special fertilizer for spring corn base fertilizer, comprising the following steps:

[0018] (1) Mix raw materials 1kg calcium carbonate, 2kg iron ore, 1.5kg dolomite, 0.8kg potassium feldspar, 1.5kg slag, burn at 450°C for 7 hours, add 1.5% of the total weight of the above raw materials to grind with vegetable oil into powder, and after mixing with 3kg kaolin, the compound powder is ready for use;

[0019] (2) Add animal feathers to 30% sulfuric acid and hydrolyze at 100-110°C for 1-2 hours to generate amino acids, then add lime to pH 6.0-6.8 to obtain a hydrolyzate, and add 3kg carboxymethyl to every 15kg of hydrolyzate Base cellulose, then add 1kg ferrous sulfate and 3kg ammonium molybdate to dissolve, and react at 90-105°C for 5-6 hours to obtain amino acid chelating liquid for use; use 300ml of 30% sulfuric acid to hydrolyze every 100g of animal feathers .

[0020] (3) Mix 10kg of coated urea, 40kg of coated diammonium phosphate, 40kg of c...

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PUM

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Abstract

The invention provides a preparation method for a special base fertilizer for spring corn. The preparation method comprises the following steps: uniform mixing 7 to 10 parts by weight of coated urea, 40 to 45 parts by weight of coated diammonium phosphate, 40 to 45 parts by weight of coated potassium chloride, 1 to 2 parts by weight of coated zinc sulfate, 1 to 3 parts by weight of pomegranate peel powder, 1 to 2 parts by weight of attapulgite and 3 to 5 parts by weight of compounded powder; spaying 4 to 6 parts by weight of amino acid chelated liquid and 1 to 2 parts by weight of bonding liquid on an obtained mixture; carrying out granulation to obtain composite fertilizer particles; and sprinkling 7 to 10 parts by weight of molten paraffin on the surface of 100 parts by weight of the composite fertilizer particles to realize coating so as to obtain the special base fertilizer for the spring corn. According to the invention, a variety of nutrients needed in growth of the spring corn are reasonably compounded to prepare the composite special base fertilizer, and the fertilizer has the advantages of a light weight and excellent water retention, fertilizer retention and slow release performance.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a method for preparing a special fertilizer for spring corn base fertilizer. Background technique [0002] Coated fertilizers are also called coated fertilizers and film fertilizers. Fertilizers made of quick-acting fertilizer granules wrapped with semi-permeable or impermeable film substances. Film-forming substances include plastics, resins, paraffin, polyethylene and elemental sulfur. The purpose of the coating is to slowly release the quick-acting nutrients in the coated fertilizer after it is applied to the soil, so as to prolong the fertilizer effect. The release rate depends on the type of coating, thickness, particle size, fertilizer solubility, soil temperature, soil water content, and soil microbial activity. It is suitable for crops with high economic value, long growth period, large amount of fertilizer but inconvenient to fertilize in batches, and high temperature, rain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/08C05G3/02C05G3/60C05G3/90
Inventor 杨柳唐旺全杨红兵
Owner 酉阳县农人生态农业有限公司
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