Method for improving low-lying saline-alkali soil for agriculture

Abstract

The invention relates to a method for improving low-lying saline-alkali soil for agriculture. The method is characterized by comprising the following steps of A, high ridging, wherein ditching and ridging are carried out before melons and vegetables are planted, the groundwater buried depth of 1.5 m in the first ten-day period of April every year serves as the standard of the ridge height, and itis required that the groundwater buried depth on the tops of ridges is not lower than 1.5 m; B, film mulching, wherein the ridges are covered with film after ridging and laying of dropping pipes, andit is required that the film width is larger than the ridge width; C, straw covering, wherein the ridge bottoms are covered with straw after planting, wherein the thickness of the straw is 10-15 cm; D, fertilization and irrigation, wherein fertilization and irrigation are carried out by using a water and fertilizer integrated system in the growth period; E, straw returning, wherein after harvesting, soil on the ridges is turned and presses the straw at the ridge bottoms, and ridging is carried out at the ridge bottoms in the next year, that is, staggered stubble ridging and planting are achieved. By means of the method, the low-lying saline-alkali soil is used, meanwhile, the soil is improved, the ecological environment is improved, the crop yield is increased, the development of the agricultural industry of the saline-alkali soil is effectively promoted, and the win-win effect of economic and ecological benefits can be achieved.

Description

technical field [0001] The invention relates to a method for agriculturally improving low-lying saline-alkali land. Background technique [0002] The main problems of low-lying saline-alkali land are low-lying terrain, high groundwater table, high soil salinity, heavy texture, low fertility, low survival rate and seedling preservation rate of melons and vegetables, etc. The primary measure for improving and utilizing this type of land is to control groundwater And suppress salinity, improve soil structure, and fertilize soil. In addition, the low-lying saline-alkali land has low terrain, poor drainage, high groundwater table, and serious surface salt return. The root development of melons and vegetables has been greatly affected, which has seriously affected the output, quality and sustainable development of melons and vegetables. [0003] Therefore, the improvement and utilization of low-lying saline-alkali land, rational control of groundwater level, and effective soil sa...

AI Technical Summary

Problems solved by technology

[0002] The main problems of low-lying saline-alkali land are low-lying terrain, high groundwater table, high soil salinity, heavy texture, low fertility, low survival rate and seedling preservation rate of melons and vegetables, etc. The primary measure for improving and utilizing this type of land is to control groundwater and suppress salinity, improve soil structure, and fertilize soil

In addition, the low-lying saline-alkali land has low terrain, poor drainage, high groundwater table, and serious surface salt return. The root development of melons and vegetables has been greatly affected, which has seriously affected the output, quality and sustainable and stable development of melons and vegetables.