Clean the stump and leaves of last season, burn and cover up together.
Ploughed deeply in 30cm, and insolate in the sun to disinfect.
Planting and fallowing by turns. Hebei’s fallow is once in a year. In Fjian, we grow lettuce, green soy bean and ripe by turns.
Mainly use organic fertilizer. Planting is combined with fallowing.
The soil can be divided into the following items according to its character: plat ridge, high ridge, inside film and outside film. All these are in order to ensure the crop’s growth.
At first, nitrogenous fertilizer promote the growth of root and leaf. In the middle period, compound fertilizer gets together the nutrition. At last, phosphoric fertilizer and potassic fertilizer is used to improve the output and guarantee the quality.