Compound microorganism coated long-acting improvement fertilizer for saline-alkaline land and preparation method

A technology of compound microorganisms and compound microbial agents, applied in the direction of layered/coated fertilizers, fertilizer forms, fertilizer mixtures, etc., can solve the problems of short action time, difficult application, high cost, etc., to reduce alkalinity and promote root growth , enhance the effect of disease resistance

Active Publication Date: 2019-08-02
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

Method used

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  • Compound microorganism coated long-acting improvement fertilizer for saline-alkaline land and preparation method
  • Compound microorganism coated long-acting improvement fertilizer for saline-alkaline land and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 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-modified material, and then the acid-modified material is dissolved in the organic solvent acetone, wherein the volume ratio of the acid-modified material:organic solvent-acetone 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 obtain...

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 improvement of saline-alkaline land and particularly relates to compound microorganism coated long-acting improvement fertilizer for saline-alkaline land and a preparation method. The improvement fertilizer is prepared from a saline-alkaline land improvement material, a coating material, a compound microbial agent, nitrogen fertilizer as well as medium and trace elements essential to plants in the weight part ratio of 1:(0.001-0.01):(0.001-0.01):(0.1-0.5):(0.001-0.01). The improvement fertilizer can control the salinity and alkalinity in soil of the moderate and heavy saline-alkaline land in a reasonable range, so that pH and the degree of alkalization in the soil can be reduced, the release time of acidic substances is notably prolonged, the fertilizer acts in the whole growth period of crops, sustained damage of accumulation of alkali and salt on soil to the crops is effectively reduced, the crops are protected against salt damage and alkali damage in the whole growth cycle, the crop yield is increased, besides, the fertilizer can promote growth of crop root systems, promote plants to be robust and notably enhance multiple functions of disease resistance, drought resistance, lodging resistance and early-ripe promotion.

Description

technical field [0001] The invention relates to the field of improvement of saline-alkali soil, in particular to a compound microorganism-coated long-acting fertilizer for improving saline-alkali soil and a preparation method thereof. Background technique [0002] Cultivated land is the basis and guarantee for the survival of human beings, and firmly guarding the red line of 1.8 billion mu of arable 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 in the inland soda saline land is NaHCO 3 and Na 2 CO 3 , The soil pH value is 8.0-10.2, and the severe plot reaches above 10.5. Because of its poor soil structure, high pH value and salt content, and lack of fertility, the growth of crops is severely restricted. Therefore, improving and managing the saline-alkali ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G5/00C05G3/80
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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