How to treat the land with alkali?

At present, there is no special method to solve the problem of soil salinization safely, and only a few methods can inhibit and reduce the phenomenon of pan-alkalization. One is desalination and drainage. It is to water the land, drain the water on the surface and dilute the alkaline substances. However, this method is complicated, which requires less watering but more operations to gradually play a role. One way is isolation. It is to use soil improvers containing some chemical components and spray them on farmland to isolate them and reduce the occurrence of alkaline flooding. The third is agricultural measures. Water less or no water at seedling stage to reduce land alkalization. But these methods can only be used temporarily, and it is impossible to completely restore the alkalized land. Under the condition of sufficient funds, the phenomenon of pan-alkali can be controlled by soil improvement and nest soil engineering.