Method for preparing soil loosening agent

Abstract

The invention belongs to the field of soil improvement, and particularly relates to a method for preparing a soil loosening agent. The method comprises the following steps: (1) uniformly grinding 25-28 parts by mass of corn straws into powder which is not longer than 0.5cm; (2) uniformly grinding 25-28 parts by mass of cotton straws into powder which is not longer than 0.5cm; (3) uniformly mixing the ground corn straws and the ground cotton straws with 20-22 parts by mass of edible fungi according to a proportion, and grinding in a grinding machine once again; (4) uniformly mixing 5-10 parts by mass of turf soil, 5-8 parts by mass of plant ash and 5-8 parts by mass of zeolite powder according to a proportion, and spraying water for preventing dust; and (5) uniformly mixing the product in the step (3) and the product in the step (4) according to a proportion. The soil loosening agent prepared by the preparation method can be used for improving the soil structure, increasing soil aeration and supplying organic matters.

Description

Technical field [0001] The invention belongs to the field of soil improvement, and particularly relates to a method for preparing a soil leavening agent. 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. Soil salinization is a worldwide problem. The saline-alkali soil area in the world is about 1 billion hectares. my country has 99.13 million hectares, or about 1.47 billion mu. Nearly 100 cities across the country are located in saline-alkali soil distribution areas. Nearly 500 million mu of cropland has been reduced due to salinization, mainly in the arid and semi-arid regions of North China, Northwest and Northeast China. In addition, in the process of cultivation, long-term excessive application of chemical fertilizers has led to intensified secondary salinization of the soil, serious compaction, and continuous expansion of salinized and alkalinized soil. In addi...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming that saline-alkali soil cannot be effectively improved in the prior art, and to provide a preparation method of a soil leavening agent. Combined with chemical agent, after engineering mixing, irrigation and salt discharge operations, the saline-alkali soil can be thoroughly improved so that it can be used for agricultural production or urban greening

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