Saline-alkali soil remediation agent and preparation method thereof

Abstract

The invention discloses a saline-alkali soil remediation agent and a preparation method thereof. The saline-alkali soil remediation agent comprises, by weight, 14 to 22 parts of maggot skin, 10 to 15 parts of marinated fly pupa shell, 10 to 20 parts of bamboo rat sperm, 8 to 12 parts of freeze-dried durian peel powder, 6 to 12 parts of freeze-dried dragon fruit peel powder, 5 to 15 parts of green tea residues, 4 to 10 parts of camphor tree sawdust, 4 to 8 parts of quercetin, 2 to 5 parts of ginkgo leaf, 2 to 4 parts of ethylparaben, 2 to 5 parts of alpha-linolenic acid, 2 to 6 parts of borax, 2 to 7 parts of medical stone powder, 6 to 10 parts of urea, 2 to 8 parts of potassium chloride, 5 to 10 parts of cow dung and 3 to 8 parts of ammonium dihydrogen phosphate. The saline-alkali soil remediation agent can effectively reduce the alkalization degree and salt content of the saline-alkali soil, has strong repairing ability and a short repair period.

Description

technical field [0001] The invention relates to a soil restoration agent, in particular to a saline-alkali soil restoration agent and a preparation method thereof. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to the incomplete statistics of UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is the largest 99.13 million hectares. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] At present, saline-alkali land improvement technologies include physical improvement, hydraulic improvement, chemical improvement, and microbial improvement. Among them, physical improvement requires a large amount of...

AI Technical Summary

Problems solved by technology

[0003] At present, saline-alkali land improvement technologies include physical improvement, hydraulic improvement, chemical improvement, and microbial improvement. Among them, physical improvement requires a large amount of work and the effect is not obvious; hydraulic improvement consumes too much water resources and only improves the salt content of saline-alkali land; Chemical improvement, such as using gypsum and olivine to repair saline-alkali land, is more effective in reducing the alkaline content of saline-alkali land, but it is expensive and difficult to promote on a large scale; microbial improvement, through the growth and reproduction of microorganisms, can promote the movement of salt in the soil, effectively Transform the organic fertilizer in the soil into humus to improve the salinity of the soil, but usually the soil in saline-alkali land is poor and lacks the nutrients needed for microbial growth and reproduction, so the effect of microbial improvement has certain limitations

[0004] Although there are currently some soil remediation agents for saline-alkali land, they still have the disadvantages of long treatment period, poor treatment effect and high cost.

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