Method for improving nutritive saline-alkali land soil

Abstract

The invention discloses a method for improving nutritive saline-alkali land soil, and relates to the field of saline-alkali treatment. The method comprises the following steps of: 1, ploughing the soil; 2, applying stalks in a deep layer; and 3, covering sand on a surface layer. The method has the following advantages that: 1, the crop stalks are degraded to provide a great number of organic matters, improve soil structure and provide nutrient needed by plants; 2, the sand covers on the surface layer, and facilitates the flatness of the ground; 3, the stalks turned under the soil, together with the covered sand, can cut off capillaries of the soil, reduce water loss and inhibit salt return of the saline-alkali land soil; and 4, the method has low cost, can comprehensively improve the saline-alkali land soil in a large area, improve the growth quality of the plants in the saline-alkali land and protect and improve ecological environment, and has wide application prospect.

Description

technical field [0001] The invention relates to the field of saline-alkali land management, in particular to a method for improving nutrient-type saline-alkali soil. Background technique [0002] Saline-alkali land is an important land resource for agricultural development and utilization. my country has about 36.3 million hectares of saline-alkali land, about 75% of which have not been effectively controlled and rationally developed and utilized. Saline-alkali soil contains excessive salt, toxic substances, high alkalinity, and poor soil properties, which inhibit the growth of plants, making it difficult for plants to grow on saline-alkali soil, forming a large area of ​​saline-alkali wasteland, and the ecological environment is poor. However, as the available land resources are decreasing day by day, saline-alkali land is a precious land resource, and its improvement will become an important source of available land. [0003] Controlling saline-alkali land and improving ...

AI Technical Summary

Problems solved by technology

[0010] Although these methods have a significant effect on improving saline-alkali soil, they cannot be widely promoted due to some conditions and cost constraints.