1, nurture strong seedlings.
Select wasteland or paddy fields as breeding grounds, and disinfect the soil with 0.5 kg of enemy pine per acre. Before sowing, the seeds were soaked in warm water of 55°C for 10 minutes, and then seeded with 50% carbendazim wettable powder 0.3-0.5%.
2, cultivation and management.
Rational rotation, the application of basal fertilizer, apply more organic fertilizer, nitrogen, phosphorus, potassium fertilizer application ratio of 1:0.4:1.2. Starting from the ditch, rational close planting, spraying a single time of potassium dihydrogen phosphate during the flowering period and the result period, spraying 100 kg of potassium dihydrogen phosphate per acre with 60 kg of water, can increase the disease resistance of plants.
3, spraying control.
Once the above diseases occur, the diseased plants should be removed and burned in time, and lime powder must be disinfected at the diseased points, or sprayed with 75% chlorothalonil 1000 times solution to suppress the spread of the disease.
Appropriate chemicals should be used to prevent and control: 1 damping-off and blight in the early stages of the disease with 75% chlorothalonil 600 times or 95% of the enemy to spray 1000 times enemies. 2 Once the locust is found, kill it with 2.5% enemy or 3000 times Uranus or 1500 times the phosphorus of fruits and vegetables, and spray the disease area with 1000 times solution of the disease. 3 Wilt pathogens can overwinter in soil or on seeds. Therefore, we must use resistant varieties, can also use 50% carbendazim or 50% thiophanate-methyl 500 times soaking root. The above liquid sprayed once every 7-10 days, even sprayed twice.
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