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Biochar-based rice specialty fertilizer added with gama-polyglutamic acid and preparation method of biochar-based rice specialty fertilizer added with gama-polyglutamic acid

A technology of polyglutamic acid and biochar, which is applied in ammonium nitrate fertilizer, ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, etc., can solve the problems of single variety of specialized fertilizers, low fertilizer utilization rate, and poor fertilizer specificity. , to achieve the effect of improving soil nutrient status, improving fertilizer utilization rate and reducing nutrient loss

Inactive Publication Date: 2017-05-24
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the rice field soil in my country generally has problems such as single type of special fertilizer, excessive fertilization amount, unreasonable fertilization method and low fertilizer utilization rate. Decreased soil fertility is not conducive to the safe production of rice

Method used

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  • Biochar-based rice specialty fertilizer added with gama-polyglutamic acid and preparation method of biochar-based rice specialty fertilizer added with gama-polyglutamic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In this example, a special fertilizer for rice without adding γ-polyglutamic acid and biochar was prepared, and the contents of nitrogen, phosphorus pentoxide and potassium oxide were 22%, 12% and 16% respectively, all in mass percentage.

[0067] The special fertilizer for rice without adding gamma-polyglutamic acid and biochar of the present embodiment includes the following raw materials in parts by weight: 404 parts by weight of urea, 280 parts of monoammonium phosphate, 265 parts of potassium chloride, 15 parts of humic acid, Potassium silicate 0.2 parts, zinc sulfate 0.2 parts, fly ash 0.6 parts, filler 35 parts.

[0068] The preparation method of the special fertilizer for rice without adding gamma-polyglutamic acid and biochar of the present embodiment may further comprise the steps:

[0069] (1) Melt 404 parts of urea at high temperature to 130-140°C, enter the buffer tank, pressurize it through the delivery pump, and send it to the mixing tank at the top of th...

Embodiment 2

[0074] In this example, a special biochar-based rice fertilizer added with γ-polyglutamic acid, the contents of nitrogen, phosphorus pentoxide and potassium oxide are respectively 22%, 12% and 16%, all of which are percentages by mass.

[0075] The biochar-based special fertilizer for rice with the addition of γ-polyglutamic acid in this embodiment includes the following raw materials in parts by weight: 404 parts by weight of urea, 280 parts of monoammonium phosphate, 265 parts of potassium chloride, and 0.2 parts by weight of γ-polyglutamic acid. 7.5 parts of biochar, 7.5 parts of humic acid, 0.2 parts of potassium silicate, 0.2 parts of zinc sulfate, 0.4 parts of fly ash, and 35 parts of fillers.

[0076] The preparation method of the biochar-based special fertilizer for rice adding gamma-polyglutamic acid of the present embodiment may further comprise the steps:

[0077] (1) Preparation of γ-polyglutamic acid fermentation broth: take an appropriate amount of Bacillus liche...

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Abstract

The invention discloses a biochar-based rice specialty fertilizer added with gama-polyglutamic acid, which comprises the following raw materials in parts by weight: 380 to 420 parts of urea, 260 to 300 parts of monoammonium phosphate, 240 to 280 parts of potassium chloride, 0.01 to 0.5 part of gama-polyglutamic acid, 4 to 10 parts of biochar, 4 to 10 parts of humic acid, 0.05 to 0.5 part of potassium silicate, 0.05 to 0.5 part of zinc sulfate, 0.1 to 0.8 part of fly ash and 25 to 50 parts of filler. The biochar-based rice specialty fertilizer added with gama-polyglutamic acid provided by the invention has the advantages of scientific formula and balanced nutrients, and can meet the requirements of different stages in the whole growth period of rice for the nutrients.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a biochar-based rice special fertilizer added with gamma-polyglutamic acid and a preparation method thereof. Background technique [0002] High-yield and high-quality rice production is an important part of ensuring my country's food security, and scientific fertilization plays an important role and significance in promoting rice quality and production. In recent years, the rice field soil in my country generally has problems such as single type of special fertilizer, excessive fertilization amount, unreasonable fertilization method and low fertilizer utilization rate. Decreased soil fertility is not conducive to the safe production of rice. Therefore, the development and scientific application of new rice-specific fertilizers are urgently needed in my country's rice production. [0003] γ-polyglutamic acid is a kind of high-molecular amino acid polymer that is non-toxic to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05B17/00C05C1/00C05C3/00C05C9/00C05C11/00C05D1/00C05D1/02C05D5/00C05D9/00C05D9/02C05F11/02
Inventor 张磊解学仕杨恒哲周丽赵文李元峰江廷雪
Owner STANLEY AGRI GRP CO LTD
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