1. Implement crop rotation, rotation with Solanaceae crops, preferably with paddy crops for 1 to 2 years.
2. Cultivate disease-free strong seedlings and increase plant disease resistance. With seedling-free seedlings, the former had not been planted in the land plots of the Solanaceae crop, and the seedbed was sprayed with 50% carbendazim 1000 times before sowing. It is best to use nutritious cups or nutritional bags for seedlings to reduce the risk of colonization. The day before transplanting, the seedlings should be sprayed with 70% methylthioammonium 1000 times to reduce the spread of disease to Daejeon.
3. The soil in the orchard garden should be sun-dried. In the past, heavy-earth land masses could be used to disinfect the soil with ammonium bicarbonate. The specific method was to wet the soil with 50 kg of ammonium bicarbonate per acre evenly on the soil surface. Cover with a thin film. After 5-7 days, open the film and set up the plant. In combination with site preparation, 50-100 kg of lime per acre is used for soil improvement and disinfection.
4. Strengthen field management. Irrigation should be used to pour small water and prevent flooding. Apply base fertilizer adequately, apply organic fertilizer to fully decompose, and balance topdressing nitrogen, phosphorus and potassium fertilizers. After the first fruit-picking, apply 0.2% potassium dihydrogen phosphate or other foliar fertilizer. And timely cultivating, earth-cultivation, and promote root growth.
5. The diseased plants should be removed in a timely manner. The diseased plants should be brought out of the vegetable fields and buried deep or burned. Limes in the soil around the diseased plants should be used to prevent the disease from spreading.
6. Chemical control, at the early stage of disease, use 72% of agricultural streptomycin sulfate 400 times, or agricultural resistance "401" 500 times, or 50% DT500 times liquid and 14% colubrum ammonia water 300 times, each strain Irrigation prepared liquid 0.3 ~ 0.5 liters, once every 10 days irrigation, continuous irrigation root 3 to 4 times.
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