Multi-factor saline-alkali soil improvement method

Abstract

The invention discloses a multi-factor saline-alkali soil improvement method. The method is characterized by including steps: loosening the soil to ventilate by means of rotary plowing; arranging water supply and drainage channels around saline-alkali soil after soil loosening, digging multiple transverse furrows and multiple longitudinal furrows in an interlaced manner in the saline-alkali soil,fully filling the transverse furrows and the longitudinal furrows through the water supply channels, soaking, draining, and repeating for several times; uniformly spreading a layer of modified gypsumon the surface of the saline-alkali soil after washing; applying a soil directional conditioning agent; applying organic fertilizers; planting crops with high saline-alkali resistance in a planting soil layer; detecting soil parameters of the saline-alkali soil, and continuing improvement according to the soil parameters until the soil meets requirements. By the multi-factor saline-alkali soil improvement method, effective improvement aiming at soil in different regional plots can be realized, and improvement effects are improved by combination of various procedures and various improvement means.

Description

technical field [0001] The invention relates to the field of planting technology, in particular to a method for improving saline-alkali land with multiple elements. 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. The main reason for soil salinization is that the soil contains potassium, sodium, calcium, magnesium chloride, sulfate, bicarbonate and other saline-alkali components, which change the physical and chemical properties of the...

AI Technical Summary

Problems solved by technology

However, the underground pipe salt removal technology requires high cost, requires specialized large-scale machinery to cooperate, and requires high manpower and material support in the operation process. This is very unfriendly to many small and medium-sized enterprises or family cooperatives. Threshold for improvement of saline-alkali land