Methods for improving saline-alkali land

1. Deepen cultivation and improvement

This is a very simple method. The saline-alkali land that needs to be improved should be plowed deep, about 30-40 centimeters deep. The requirement is that there are no large clods of soil in the land and the soil is as fine as possible. When deep plowing, it should be carried out as many times as possible vertically and horizontally, and the depth of deep plowing and the fineness of the soil should be sufficient.

2. Bio-improvement

Some salt-tolerant plants can be planted in saline-alkali land, such as roses, wolfberries, white wax trees, etc. When planting, you can apply some bacterial fertilizer, which can greatly improve the fertility of the soil and thus reduce the evaporation of water, which can also have a good effect.

3. Improvement of soaked fields

A system should be established to separate irrigation and drainage, and the water level below should be well controlled. Pour water into the soil, let it soak for about two days and then drain it. Repeat two or three times and then let it dry. At this time, check whether there are salt crystals in the soil. If so, continue to soak it in water.