How to prevent the abnormal growth of wheat fields
In the early spring of this year, affected by low temperatures, wheat in many wheat-producing areas suffered from various degrees of frost damage and yellow leaves appeared.
After the occurrence of freeze injury of wheat, it is necessary to strengthen the management of fertilizer and water and the prevention and control of pests and diseases so as to accelerate the restoration of growth and reduce the damage of pests and diseases. First of all, timely irrigation and moisturizing, filling the wheat field with a “running horse waterâ€, speed irrigation speed, prevent accumulation of water, and keep the wheat fields moist. Because wheat suffers severe water loss after freezing damage and plants are deficient in water, they must be supplemented in time to restore growth. After irrigation, the wheat field is moistened and a single fertilizer is applied to rapidly treat available nitrogen and potassium fertilizers. Urea 30-40 kg per mu, potassium chloride or potassium sulfate 15-20 kg, evenly applied to the soil around the roots of wheat plants. You can. At the same time, spray 0. 1% magnesium sulfate, 0.2% urea, 0.3% potassium dihydrogen phosphate, 800 times humic acid active liquid fertilizer, 1000 times natural brassin, 1000 times three times every 7-10 days. The mixture of octanol was sprayed continuously for 2-3 times, and all the leaves were evenly sprayed, so that drops of water began to be suitable. In addition, we must also spray pesticides to prevent and treat pests in a timely manner. Because the cold-damaged wheat has weak resistance to diseases and pests, the pests can easily infect from the wound. After the spring temperature rises, it is the peak season for wheat sheath blight, powdery mildew, rust, aphids, thrips, red spiders, borers, etc., and must be sprayed once with 1500 times 20% thiamethoxam, 1500 times 3 times of foliar dressing. 2% avermectin, 600 times 20% copper thiazolyl mixture, or 1000 times 10% imidacloprid, 1000 times 1.14% methombitine, 800 times 1.8% octamine acetate mixture Prevention and treatment to protect wheat seedlings.
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