Planting
1. Seed treatment. Soak seeds in warm water at 55 °C for 10~15 minutes, pay attention to stirring constantly. When the water temperature drops to 30 °C, stop stirring, then soak for 4 hours to prevent fungal diseases. Soak seeds with 10% trisodium phosphate solution at room temperature for 20 minutes. After washing, the seeds can be sterilized by immersion and germination to prevent viral diseases. Soak seeds with 50% carbendazim 500 times for 2 hours, or use 50% carbendazim WP or 50% thiram WP for 0.4. % seed dressing, or 25% methyl shuangling wettable powder with 0.3% seed dressing to prevent fungal diseases.
2. Spring, summer or summer and autumn seedlings cover the insect-repellent net to prevent the mites and white powder mites, and prevent viral diseases.
Field Management
1. The sorghum cultivation is carried out in the protected area, and the mulch film is covered, and micro-drip irrigation or sub-film submerged irrigation technology is applied. The protection ground facilities adopt no drip film to strengthen the indoor temperature and humidity control of the shed, timely ventilation, proper control of watering, avoid watering in rainy days, timely draining after watering, and prevent leaf surface condensation to prevent disease occurrence.
2. Pruning and wiping in time, timely removing diseased leaves, diseased flowers, diseased fruits, removing old leaves that have lost function in the lower part, improving ventilation and light transmission conditions, removing sick bodies in time after pulling, and paying attention to agricultural operation and prevention of disease .
3. In the facility, the wind will be released at a proper sunny day in the morning, so that the temperature of the chamber will increase rapidly. When the temperature rises to 30 °C, the air will start to blow again. When the temperature drops to 20 °C, the vents are closed and the temperature is delayed. The minimum temperature at night remains at 12~15 °C to prevent gray mold.
Pest Control
1. The yellow plate can be set in the protected area to trap white fungus, aphids, spotted flies and other yellow-oriented pests; it can also release the white bee to control whitefly.
2. Use 2% gram gram (Ningnanmycin) 200 ~ 250 times solution to prevent viral diseases in the early stage of the disease; use 1% agricultural anti-wuyinmycin 150 ~ 200 times liquid in the early stage of the disease to prevent gray mold.
3. Use 0.9% worms 4000 times solution to control spotted fly, cabbage caterpillar, etc., or use 10% Liuyangmycin emulsifiable concentrate 1000~1500 times solution, 5% card dead emulsifiable concentrate 1000~1500 times solution to prevent sorrel螨 and leaf 螨.
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