How to prevent dry hot wind of wheat

In the late period of wheat growth in our province (from late May to early June), dry hot wind (temperature higher than 30°C, relative humidity less than 30%, wind speed 3 to 4m/s) or blue and dry Sudden rainfall at high temperatures, and then sunny days) caused the leaves to mature and the grain weight decreased. Therefore, we should pay close attention to meteorological forecasting, ingeniously injecting wheat yellow water, improving the field microclimate, and reducing the danger of dry hot wind. We can also use acetic acid or chemical regulators for foliar spraying to improve the drought resistance and heat resistance of wheat, prevent dry hot wind and increase grain weight.

On the basis of the pre-interim management, spraying the foliar fertilizers from heading to milk ripening period 2 to 3 times can avoid defertilization in the later period, prevent dry hot air, and increase grain yield. Generally, it can use 1%~2% urea solution, 2%~4% superphosphate solution, 0.3%~0.4% potassium dihydrogen phosphate solution, 15%~20% ash leaching solution or 1%~2% per acre. Urea + 0.2% potassium dihydrogen phosphate solution 40 ~ 50 kg foliar spray; can also be combined with pest control, enhance plant resistance, to "one spray three defenses" purposes.

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Testing Technician's Duties
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