It is necessary to strip the topsoil, whole the field, build ridges, prevent water seepage in the field, cover the topsoil, level off, store water and maintain the paddy field.

Changing yellow soil into paddy field needs to meet four conditions: first, there is sufficient water source; Second, the slope of cultivated land is not large; Thirdly, the ph value of the soil is between 6.0 and 7.0; Fourth, there are enough funds.