Every spring, the spring cold is a major “killer†for wheat. To ensure the harvest of wheat, it is particularly important to prevent and remediate the cold.
First, preventive measures
1. In the early spring, the Zhuang Fengan was sprayed during the repression and erection period. Prosperous plots of wheat flourished under conditions of favourable circumstances. Because suppression of Wang Miao, can inhibit the rapid growth and development of wheat, to avoid its premature jointing and reduce cold resistance. In addition, spraying Zhuangfengan during the initial period of growth can properly inhibit growth and development and improve cold resistance, and secondly, it can inhibit excessive elongation in the first internode and improve lodging resistance.
2. Irrigation. Pay attention to weather changes and fill with water before cooling down. The heat capacity of water is larger than that of air and soil. Watering before the cold flow in early spring can increase the water vapor in the air near the ground. When condensation occurs, latent heat is released to reduce the variation of ground temperature. At the same time, after irrigation, the soil moisture increases, the thermal conductivity increases, and the soil temperature increases.
3. Smoke smoke. When frost occurs, use the method of smoke from the field to reduce frost.
Second, remedial measures
1. Make up and water. Wheat is a crop with tillering properties. Wheat fields that suffer from frost damage in early spring will not freeze all of them, and small axillary buds may grow into grains with long components. As long as the management is strengthened, a good harvest can still be obtained. Wheat that suffered from frost damage in early spring should be immediately applied with available nitrogen fertilizer and watering. The synergistic effect of nitrogen and moisture will promote the early tillering of wheat and small borers, increase the percentage of tillers per panicle, and increase the panicle number per acre, thus reducing the loss of freezing damage. . Generally, about 10 kilograms of urea is applied to each acre.
2. Protect crops in the arable land, raise the temperature, increase the number of tillers, and obtain a good harvest.
3. Spray foliar fertilizer. After the wheat is frozen, it can timely spray the plant cell membrane stabilizer such as Zhuangmiaoling, and can use 25 grams of seedlings per acre to spray 15 kilograms of water twice, which has obvious promotion effect on the recovery of wheat. It is manifested by the rapid growth of medium and small deliveries and the rapid growth of latent buds.
4. Do a good job of pest control. Frozen wheat fields are more vulnerable to pests and diseases and should be prevented and treated in time. The control of wheat sheath blight, powdery mildew, and rust can be sprayed with triadimefon or carbendazim. Aphids can be sprayed with imidacloprid to reduce losses.
We're Professional Supplier Extract Powder manufacturers and suppliers in China specialized in providing high-quality products at low price. We warmly welcome you to buy or wholesale bulk Supplier Extract Powder for sale here from our factory. For a free sample, contact us now.
Supplier Extract Powder,Supplier Extract ,Supplier Powder Manufacturer in China
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com