1, rational use of fertilizer
Fertilizer jointing stage generally mu recovery urea 20-25 kg, suitable for a group of individuals, a robust wheat field, fertilizer and water in the jointing stage of the size of the pod polarization basically completed. For the prosperous wheat field with large population and high stem number, the fertilizer and water at the jointing stage were postponed until the jointing of wheat. At this time, most of the midges and crickets had already died, which had the effect of reducing the number of individual groups. The late wheat is also very sensitive to the requirements of water and fertilizer, especially the booting and grout water is even more important and should be watered in time. For de-fertilizer plots in defertilized plots and wheat fields, 5-10 kg of urea may be applied in an appropriate amount per acre, but avoid over-dressing to avoid lustrous late-maturing.
2, strengthen pest control
In mid-April in the booting stage of wheat jointing with 25% triadimefon 30g + 30-40 kg of water sprayed once to prevent powdery mildew and rust. The prevention and control of wheat midge insecticide should adhere to the principle of “mainly prevention and control in the flood season, supplemented by the prevention and control of adult pestsâ€. Currently, it can be diluted with phoxim or thomsulf to form toxic soil, spread over the ridges of the wheat ridge, and the protection efficiency reaches over 90%. . In late April after wheat heading with 50% anti-inflavor WP 6-8g + 20% diflubenzuron suspension 8-10g + 20% Triadimefon 50ml mixed + water 30-40kg spray can prevent white powder Diseases, rust, aphids, armyworms. In early May, 40% omethoate emulsion 50 ml + 20% Triadimefon 50 ml + Potassium dihydrogen phosphate + 30-40 kg of water is sprayed to prevent powdery mildew, rust, aphids and midge.
3, late attention to foliar dressing
The optimum application time of foliar spray fertilizer is from wheat flowering to grain filling, 300 mu potassium dihydrogen phosphate and 300 times urea fertilizer liquid are evenly sprayed, and foliar fertilizers such as spray depot and Xinliyuan can also be used. Spray after 4 o'clock on sunny days to avoid burning the leaves, and is conducive to nutrient absorption. Http://
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