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A kind of composite microbial coating type long-acting saline-alkali land improvement fertilizer and its preparation method

A technology of composite microorganisms and composite microbial agents, which is applied in the direction of layered/coated fertilizers, fertilizer mixtures, solid/semi-solid fertilizers, etc., can solve the problems of short action time, high cost, and difficult application, so as to reduce alkalinity , promote root growth, reduce the effect of soil pH

Active Publication Date: 2022-02-22
SHENYANG RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the existing saline-alkali soil improvers are not easy to apply, high cost, short action time, etc., and realize the quick-acting and long-acting demands of crops on nutrients through coating, granulation, compounding of improved technologies, etc., and provide a compound Microbe-coated long-acting saline-alkali land improvement fertilizer and preparation method

Method used

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  • A kind of composite microbial coating type long-acting saline-alkali land improvement fertilizer and its preparation method
  • A kind of composite microbial coating type long-acting saline-alkali land improvement fertilizer and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The compound microbial coating type long-acting saline-alkali land improvement fertilizer is prepared according to the following steps:

[0034] 1) First soak biochar in hydrochloric acid solution, wherein the volume ratio of biochar to hydrochloric acid solution is 1:3.5, and the concentration of hydrochloric acid solution is 0.025mol L -1 , The soaking time is 25 hours to obtain the acid-improving material, and then the acid-improving material is dissolved in the organic solvent acetone, wherein the acid-improving material: the organic solvent acetone volume ratio is 1:2.

[0035]2) In parts by weight, 100 parts of acid improving material, 10 parts of peat, 10 parts of humus, 10 parts of vermiculite, 10 parts of urea, 1 part of calcium, 0.5 part of magnesium, 0.01 part of iron, 0.05 part of manganese, 0.01 part of zinc , 0.01 part of silicon, mechanically mixed by a stirring pump, stirring time 15 hours, stirring power 7.5KW, put it on a rolling disc granulator, and o...

Embodiment 2

[0040] Compound microbial coating type long-acting saline-alkali land improvement fertilizer is prepared according to the following steps:

[0041] 1) First soak the phosphate rock powder in the hydrochloric acid solution, wherein the volume ratio of the phosphate rock powder to the hydrochloric acid solution is 1:1.5, and the concentration of the hydrochloric acid solution is 0.005mol L -1 , Soak for 20 hours to obtain the acid-modified material, and then dissolve the acid-modified material in the organic solvent acetone, wherein the acid-modified material:organic solvent-acetone volume ratio is 1:2.

[0042] 2) In parts by weight, 100 parts of acid modified materials, 20 parts of peat, 10 parts of humus, 10 parts of desulfurized gypsum, 10 parts of ammonium sulfate, 1 part of calcium, 0.5 part of magnesium, 0.02 part of iron, 0.01 part of boron powder, 0.005 parts of molybdenum and 0.01 parts of silicon are mechanically mixed by a stirring pump for 20 hours, with a stirring ...

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Abstract

The invention relates to the field of saline-alkali land improvement, in particular to a compound microorganism-coated long-acting saline-alkali soil improvement fertilizer and a preparation method thereof. The improved fertilizer is calculated in parts by weight, saline-alkali land improvement material: coating material: compound microbial bacterial agent: nitrogen fertilizer: the medium and trace elements necessary for plants are mixed according to the ratio of 1:0.001‑0.01:0.001‑0.01:0.1‑0.5:0.001‑0.01 . The improved fertilizer in the present invention can control the salinity-alkalinity in the medium-severe saline-alkali soil within a reasonable range, so that it can not only reduce the pH and alkalinity in the soil, but also significantly improve the release time of acidic substances, acting on During the whole growth period of crops, it can effectively reduce the continuous damage caused by soil return to alkali and salt return to crops, protect crops from salt and alkali damage in the whole growth cycle, increase crop yield, and at the same time, can promote crop root growth. Robust plants, significantly enhance the multiple functions of disease resistance, drought resistance, lodging resistance and early maturity promotion.

Description

technical field [0001] The invention relates to the field of saline-alkali land improvement, in particular to a composite microorganism-coated long-acting saline-alkali land improvement fertilizer and a preparation method. Background technique [0002] Cultivated land is the foundation and guarantee for human survival, and firmly maintaining the red line of 1.8 billion mu of cultivated land is an important part of the new strategy for food security under the new situation. The total area of ​​saline-alkali land in my country is about 520 million mu, of which the area of ​​saline-alkali land in Songnen Plain is about 59.1 million mu. The main salt of inland soda saline-alkali land is NaHCO 3 and Na 2 CO 3 , the soil pH value is 8.0-10.2, and the serious plot reaches above 10.5. Because of its poor soil structure, high pH value and salt content, and lack of fertility, crop growth has been severely restricted. Therefore, the improvement and management of the saline-alkali l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/40C05G3/80C05G5/12C05G5/30
CPCC05B17/00C05G5/30C05G5/12C05G3/80
Inventor 李婷婷杨立杰施德志李彦成杨君子
Owner SHENYANG RES INST OF CHEM IND
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