High-efficiency saline-alkaline soil improvement method

A technology for soil improvement and saline-alkali soil, which is applied in the field of high-efficiency saline-alkali soil improvement. It can solve the problems of affecting crop growth, consuming more water resources, and poor improvement effects, and achieves the effects of reduced salt concentration, good hydrophilicity, and improved water absorption.

Inactive Publication Date: 2018-03-30
吴迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a high-efficiency soil improvement method for saline-alkali land in view of the problems that most of the current common saline-alkali land improvement methods have poor improvement effects, take a long time, consume too much water resources and affect the growth of crops.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Weigh desulfurized gypsum, zeolite and vinegar residue in a pulverizer for 20 minutes in a mass ratio of 5:1:2 to obtain a mixed pulverized product, and mix the pulverized product with gluconic acid, expired yogurt and grape skin in a mass ratio of 10: After mixing at 1:1:3, put it into a tissue pulverizer, and continue pulverizing for 20 minutes to obtain a fermentation substrate; put the above fermentation substrate into a fermenter, and then add 10% of the mass of the fermentation substrate to the fermenter at a concentration of 10 8 cfu / mL nitrogen-fixing Alcaligenes faecalis bacteria suspension, stirred and mixed with a sterile stick for 10 minutes, sealed the mouth of the tank, and sealed and fermented at a temperature of 30°C for 5 days to obtain the fermentation product, which is used for later use; moso bamboo was cut along the bamboo joints to obtain For the 10cm long bamboo section with both ends closed, open the bamboo node at one end to obtain a semi-transpa...

example 2

[0026]Weigh desulfurized gypsum, zeolite and vinegar residue in a pulverizer for 25 minutes in a mass ratio of 5:1:2 to obtain a mixed pulverized product, and mix the pulverized product with gluconic acid, expired yogurt and grape skin in a mass ratio of 10: After mixing at 1:1:3, put it into a tissue pulverizer, and continue pulverizing for 25 minutes to obtain a fermentation substrate; put the above fermentation substrate into a fermenter, and then add 10% of the mass of the fermentation substrate to the fermenter at a concentration of 10 8 cfu / mL nitrogen-fixing Alcaligenes faecalis bacteria suspension, stirred and mixed with a sterile stick for 13 minutes, sealed the mouth of the tank, sealed and fermented at a temperature of 40°C for 6 days, and obtained the fermentation product for later use; obtained by cutting moso bamboo along the bamboo joints For the 13cm-long moso bamboo section with both ends closed, open the bamboo node at one end to obtain a semi-transparent moso...

example 3

[0028] Weigh desulfurized gypsum, zeolite and vinegar residue in a pulverizer for 30 minutes in a mass ratio of 5:1:2 to obtain a mixed pulverized product, mix the pulverized product with gluconic acid, expired yogurt and grape skin in a mass ratio of 10: After mixing 1:1:3, put it into a tissue pulverizer, continue pulverizing for 30 minutes, and obtain a fermentation substrate; put the above fermentation substrate into a fermenter, and then add 10% of the mass of the fermentation substrate to the fermenter at a concentration of 10 8 cfu / mL nitrogen-fixing Alcaligenes faecalis bacteria suspension, stirred and mixed with a sterile stick for 15 minutes, sealed the mouth of the tank, sealed and fermented at a temperature of 50°C for 8 days, and obtained the fermentation product for later use; obtained by cutting moso bamboo along the bamboo joints For the 15cm length of moso bamboo section closed at both ends, open the bamboo node at one end to obtain a semi-transparent moso bamb...

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PUM

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Abstract

The invention relates to the technical field of soil treatment, and particularly relates to a high-efficiency saline-alkaline soil improvement method. The method comprises the following steps that desulfurized gypsum, zeolite and vinegar residues are mixed; then gluconic acid, expired yogurt and grape skin are added; the gluconic acid, the expired yogurt and the grape skin are degraded under the action of nitrogen-fixing alcaligenes faecalis for generating a large amount of free hydrophilic carboxyl groups; the carboxyl groups are introduced into the surfaces of the desulfurized gypsum, the zeolite and the vinegar residues under the action of the microorganisms for improving the hydrophilicity; the carboxyl groups have a metal complexing property, and finally a fermentation product which has good hydrophilicity and can adsorb metal salts by complexing is obtained; the fermentation product is put into porous moso bamboos; the porous moso bamboos are buried in planting pits; and then saline-alkaline tolerant plants are planted in the planting pits, so that improvement on saline-alkaline soil is completed. Water in surrounding soil can be gathered and absorbed, so that an effect of water retention and moisture preservation is achieved. With the increase of the concentration of the water in the soil, the concentration of salt in the soil can be reduced, the alkalization degree is reduced, the pH value of the soil is buffered, and the purpose of improving the saline-alkaline property is achieved.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a high-efficiency soil improvement method for saline-alkali land. Background technique [0002] Simply put, saline-alkali land is the soil, especially the land where too much soluble salt accumulates on the surface of the soil, which is harmful to the growth of crops. All kinds of saline-alkali soils are formed under certain natural conditions. The essence of their formation is mainly the redistribution of various soluble salts in the horizontal and vertical directions on the ground, so that the salt gradually accumulates on the soil surface in the salt-gathering area. build up. Factors such as climate action, unreasonable farming techniques, and rising groundwater levels can all lead to soil salinization. There are about 27 million hm of saline-alkali land in my country 2 , of which the cultivated land is 60 million hm 2 , 21 million hm of saline-alkaline wasteland 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 吴迪林茂兰
Owner 吴迪
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