Dry hot wind is a natural disaster in the late stage of wheat growth. The masses call it “hot airâ€, “dry wind†and “fire dragonâ€, which affects wheat flowering and grouting, forcing wheat to mature early and reducing wheat yield and quality. The prevention method is:
 　 1 , skillfully poured wheat yellow water. Watering the wheat yellow water about 10 days before the ripening of wheat can significantly improve the microclimate conditions in the field, reduce the damage of dry hot wind, and facilitate the intercropping and summer sowing of wheat fields.
 　 2 , foliar spray fertilizer. In the early stage of wheat flowering to filling, use 1 % to 2 % urea solution, 0 . 2% solution of potassium dihydrogen phosphate, 2% to 4% superphosphate leachate or 15% to 20% of the ash leachate as Yemianpenfei, 50 spray per acre ~ 100 kg, can accelerate the growth of wheat late to prevent Or reduce the dry hot wind hazard, generally increase the yield per acre by 8 to 15 %.
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