Soil is the base for the growth and development of vegetables and is a basic condition for the high yield and quality of vegetables. The requirements for most vegetables on the soil are: "a thick", that is, mature soil deep; "two fertilizers", ie, nutrients full, complete; "three loose", soft soil; "four temperature", that is, stable temperature, cool in winter and cool in summer ; "Five Run", that is, good water retention, cold and resistant. To achieve the above five points in the soil of vegetable fields, deep plowing is an important measure. On the basis of deep plowing, combined with the application of a large number of organic fertilizers, improved drainage and irrigation conditions can create a good vegetable soil. Deep plowing can also turn vegetable roots deep into the soil, receiving clean gardens and reducing the effects of pest infestation. Soil-heavy vegetable plots, after deep tillage or winter plowing, can improve the physical and chemical properties of the soil and achieve softness and permeability. However, when deep plowing must be mastered: 1, the gradual deepening of the plow layer, can not be rushed; 2, increase organic fertilizer. In the absence of organic fertilizers, deeper ploughing often leads to reduced yields. In addition, for the short-term leafy vegetables do not have to be ploughed, and vegetables should not be ploughed.
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