Using agricultural methods to control vegetable pests and diseases
Agricultural control of vegetable pests and diseases can reduce the cost of pest control, save time, save time, reduce environmental pollution, and improve product quality.
After harvesting the vegetables in Qingyuan Garden, many pathogens attached to the broken stems of the vegetables scattered in the fields and entered the soil, which became the source of pollution of the vegetables. Therefore, vegetable farmers should strengthen disease prevention and control at the later stage of vegetable growth to directly reduce the number of pathogenic bacteria. In addition, after the harvest of each vegetable, the leaves and leaves of the field were completely removed, and the roots of the vegetables susceptible to root diseases were also removed.
The purpose of deep plowing and deep plowing is to destroy the living environment of the germs. Generally, it is required to plow 40 cm deep after each harvest to kill some pathogens by natural conditions such as low temperature and ultraviolet rays.
Sterilize the vegetable in the gap, after deep plowing, pour enough water, cover with plastic film for high temperature disinfection, so that the maximum temperature of 10 cm in the soil reaches 70 °C, can kill a large number of bacteria, this is a simple and effective method of prevention and control .
Changing soils for some of the more fixed, small variety of options and investment in high-efficiency vegetables for facilities cultivation, such as greenhouses, soil can be used to control soil-borne diseases. The plough layer topsoil was replaced and supplemented with nontoxic topsoil.
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