The deficiency of vegetables on the performance of the disease, in fact, is not necessarily the lack of such elements in the soil, but because of soil consolidation, soil pH is not appropriate, or the imbalance of soil water supply and a series of problems caused by the decline in the root absorption capacity of. Soil hardening causes root abnormalities Soil compaction, roots can not be normal development --- soil pellet structure is an important indicator of soil fertility, soil pellet structure damage caused by soil water conservation, fertilizer retention capacity and permeability decreased, resulting in soil compaction, vegetable roots in this state Due to lack of oxygen, the vitality will decrease. Therefore, in farm management in peacetime, avoid flood irrigation and try to adopt irrigation methods that have less impact on soil permeability. For example, drip irrigation is both scientific and water-saving. In the event of heavy rain and other flooding sheds, timely drainage. It is recommended that crops or sheds that are not covered by mulching film are to be ploughed after irrigation. This will not only increase soil permeability, but also reduce evaporation of soil moisture. Rushan Jinguo Food Co., Ltd , https://www.jinguofood.cn