The dry hot wind of wheat is one of the agricultural disasters. It can make wheat dry, fried, and mature, which will seriously affect the yield and quality of wheat. Therefore, to strengthen the late management of wheat and take appropriate measures in due course can prevent the danger of dry hot wind.

First, timely pouring enough grouting water. Grout water is generally poured at the early stage of wheat grain filling (about 2 to 3 weeks before wheat harvest). If the weather in the early stage of wheat growth is arid and less rainy, grouting water should be poured as early as possible.

Second, spray potassium dihydrogen phosphate. In order to increase the content of phosphorus and potassium in straw, and enhance the ability to resist dry hot air, 0.2%-0.4% of potassium dihydrogen phosphate solution can be sprayed once in booting, heading and flowering of wheat. Spray 50 to 75 kg every 667 square meters. However, it should be noted that this solution cannot be mixed with alkaline chemicals.

Third, spray boron, zinc fertilizer. In order to accelerate the late development of wheat and enhance its stress resistance and firmness, 100 grams of borax can be added to 50-60 kilograms of water to spray in the wheat flowering stage. Or in wheat grouting, spraying 50-75 kg 0.2% zinc sulfate solution per 667 square meters, can significantly enhance the resistance of wheat, increase the speed of filling and grain fullness.

Fourth, naphthalene acetic acid spray. In the flowering and filling stages of wheat, spraying naphthalene acetic acid at a concentration of 20 mg/kg can increase the ability of wheat to resist dry hot wind.

Fifth, spray calcium chloride solution. During the flowering and grain filling period of wheat, calcium chloride solution with a concentration of 0.1% can be sprayed, and the liquid volume per 667 m2 is 50-75 kg.

Six, spray vinegar, acetic acid solution. Use 300 grams of vinegar or 50 grams of acetic acid per 667 square meters, add 40 to 50 kilograms of water to spray wheat. It should be sprayed once in the booting and early filling stage, which has a good preventive effect on dry hot wind.

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