At present, wheat is in the period of heading and flowering, and this period is a crucial period for determining wheat production. The main problems with wheat are: multiple rainfalls during the flowering season, potential outbreaks of wheat scab, threat of leaf blight earlier than usual, and aphid prevalence. Therefore, the main direction of wheat management in the middle and late period is to prevent and treat pests, protect roots and protect leaves, promote grouting, and increase grain weight.
1. Give high priority to the control of scab. Since wheat encounters multiple rains at the heading and flowering stage, it must be sprayed with 40% carbendazim 150 g plus 20% triadimefon 100 ml per mu, 30 kg water, and sprayed once every 5 days.
2. Timely control of leaf blight. In the wheat field where wheat leaf blight occurs, use tebuconazole 25 g plus triadimefon 100 ml per mu, 50 kg water, and control twice.
3. In the middle and late period, "one spray and three defenses." According to the occurrence of diseases, powdery mildew, rust and ear blast should be sprayed twice. For the first time, use 100% of 20% triadimefon per acre plus 40mg of imidacloprid plus 2% of urea and 8g of astrin, spray 50kg of water, and apply it for 12 days at intervals of 10 days. Prunus edulis wettable powder 40 grams plus imidacloprid 40 grams plus potassium dihydrogen phosphate 150 grams plus 8 grams of astrin, 50 kilograms of water, spraying, both prevention and pest control, but also to promote grouting.
4. Prevent lodging. All field management measures must be based on weather forecasts to prevent the lodging of wheat. In the event of wheat lodging, potassium dihydrogen phosphate and auxin are sprayed on the leaves to prevent and treat disease in time, increase the vitality of leaves and roots, and minimize the loss caused by lodging.
5. timely harvest. The best time for harvesting wheat is the end of waxing.
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