1、 Deep tillage improvement

This is a very simple method. The saline alkali land that needs to be improved should be deeply cultivated, about 30-40 cm. The requirement is that there is no big soil block in the land, and the soil should be as fine as possible. During deep ploughing, it should be carried out vertically and horizontally for many times, and the depth of deep ploughing and the fineness of soil should be met

2、 Biological improvement

Some salt tolerant plants can be planted in saline alkali land, such as rose, medlar, white wax and so on. When planting, you can apply some bacterial fertilizer, which can improve the fertility of the land and reduce the evaporation of water, which can also play a good effect

3、 Bubble field improvement

A system that can separate irrigation and drainage should be established to well control the water level below. Soak the soil for about two or three days and then dry it again. At this time, check whether there are salt crystals in the soil. If so, continue soaking with water