Vegetable soil-borne disease comprehensive prevention

Soil-borne diseases refer to the diseases caused by pathogens living in the soil and crops from the crop roots or stems when the conditions are appropriate. Common soil-borne diseases include sclerotinia and soft rot of cruciferous vegetables, eggplant, gourd vegetable damping-off, blight, blight, root rot, blight (yellow) wilt, and tomatoes. Pepper wilt and nematodes. The comprehensive prevention and control methods are described as follows:

First, rotation

Rotation is the most economical and effective measure to prevent and control soil-borne diseases. Crop rotations, especially crop rotations, can be used effectively to prevent soil-borne diseases.

Second, species selection

The selection of disease-resistant or disease-resistant vegetable varieties can greatly reduce the harm of soil-borne diseases.

Third, cultivation and disease prevention

1. Sorghum sorghum cultivation, water pouring, to avoid flood irrigation.

2. Properly dense planting, improve ventilation and light transmission conditions, reduce the humidity on the ground.

3. Clean the garden, remove the diseased plants, and apply lime in the holes of the diseased plants.

4. Avoid partial application of nitrogen fertilizer, appropriate application of phosphorus, potassium fertilizer, improve the resistance of vegetables. In the late stage of vegetable growth combined with spraying, spraying foliar fertilizer 2-3 times.

5. Grafting, disease prevention, rootstock grafting and root replacement can effectively prevent the occurrence of soil-borne diseases.

Fourth, soil disinfection

1. Lime disinfection. Lime can both sterilize and neutralize the acidity of the soil.

2. Big water soaking. Places where conditions are available can use the seasonal season of vegetables to block the water and soak the soil. The longer the soaking time, the more obvious the effect. If soaked for more than 20 days, the nematode damage can be basically controlled.

3. High temperature disinfection. Greenhouses and greenhouses can be plowed, covered with plastic film, and then covered with greenhouse films in the summer hot season. The ground temperature can reach above 50°C to kill some bacteria sources.

4. Disinfection of pharmaceuticals. Before sowing, the soil can be disinfected with chemicals.

Fifth, chemical control

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