Method for improving saline-alkali soil by utilizing residual rural waste

Abstract

The invention relates to a method for improving saline-alkali soil by utilizing residual rural waste, and belongs to the technical field of soil improvement. The saline-alkali soil is improved by utilizing materials such as residual straws in rural areas, branches, abandoned fungus bran and the like; the residual materials are crushed to obtain crushed materials; the crushed materials are mixed with the saline-alkali soil and loam soil in certain proportion to obtain a mixture; the mixture is laid in a to-be-planted area with a laying thickness determined according to a planting variety; and thoroughly-decomposed poultry manure and livestock manure are applied to the bottom of the mixture. According to the method, the fertility of the soil can be remarkably improved and the environment is cleaned while the structure of the saline-alkali soil is improved.

Description

Technical field:

[0001] The invention belongs to the technical field of soil improvement, and particularly relates to a measure for improving the soil structure of saline-alkali land by using rural residues such as straw, branches, discarded fungus chaff and the like. Background technique:

[0002] As a type of land resources, saline-alkali soil resources are widely distributed in the world and are also an important land resource. As the population grows, the area of ​​cultivated land decreases, and a large number of forests, grasslands, and wetlands are reclaimed as cultivated land for intensive management, which destroys the original vegetation and soil structure, and leads to aggravation of land salinization. These lands are becoming abandoned land, which has seriously restricted the development of local agriculture, animal husbandry and social economy, and the control of saline-alkali land has become a worldwide problem. There are also great differences in the improveme...