Comprehensive improving method for coastal saline soil

Abstract

The invention relates to a comprehensive improving method for coastal saline soil. The method includes the steps as follows: 1) underground desalting; 2) improvement of soil physical structure; 3) salt leaching by a great quantity of water; 4) application of microorganism bacterial manure for soil improvement; and 5) plant arrangement and transplantation. The engineering patent technology of desalting using covered conduits, the technical measures for improving the soil physical structure and the improvement of microbial manure are firstly integrated by the comprehensive improving method so as to conduct sequential and comprehensive work. The comprehensive improving method is remarkable in the effect of soil improvement and has the advantages of effectively reducing the salt content in high saline-alkali soil in short time (within one growing season), preventing secondary alkalization, increasing soil fertility and establishing microorganism communities; beneficial microorganisms relieve the threat and the harm of salt and alkali to plants in the original saline soil, accelerate soil ripening and promote the greening progress of the original soil; and the survival rate of plants in the same year is up to above 95% and the water resource is saved.

Description

technical field [0001] The invention relates to a soil improvement technology, in particular to a comprehensive improvement method for coastal saline soil. Background technique [0002] With the continuous deepening of economic development, ecological problems have become increasingly prominent, especially the problem of land salinization, and the problem of soil salinization in coastal areas has become more prominent. Coastal saline-alkali soil has the disadvantages of high salinity, low nutrient, large specific gravity and bulk density, small porosity and permeability coefficient, etc., which greatly restricts the ecological construction and agricultural production in coastal areas. Exploring how to quickly use the deposited coastal primary saline soil (including heavy saline soil from salt pans or dredging filling) to improve it into green planting soil is an urgent research topic. [0003] At present, the soil improvement technology of coastal saline soil mainly adopts ...

AI Technical Summary

Problems solved by technology

[0003] At present, the soil improvement technology of coastal saline soil mainly adopts relatively mature technology, which is easy to implement and popularize, such as underground pipe salt drainage and foreign soil planting technology. The foreign soil planting technology is very destructive to the farmland in the soil borrowing area, and even destroys the local ecological environment. , and the long-term, large-scale planting soil transportation process increases the traffic flow on the road, easily causing road congestion, heavy vehicles seriously affect the service life of the road, and the exhaust gas pollutes the environment. Great waste, but also seriously affect the quality of the environment

Images