1. Select solid stalk varieties that are strong in winter and are not easily convulsed in advance. 2, using new, full of seeds. This kind of seed has strong growth potential, strong growth, and lighter convulsions. When collecting seeds, they should strictly abide by the technical requirements of agronomic practices and prevent the use of pre-existing bolting plants to keep seeding, otherwise it will greatly reduce the winter nature of the varieties, resulting in degradation of quality and aggravating the occurrence of pre-convulsions. 3. In winter and spring cold season, take all effective measures to avoid the low temperature below 8-10°C. The night temperature should be above 8-12°C and the daytime temperature should be 15-20°C to avoid seedlings passing the vernalization stage. 4. Increase water and fertilizer management during the growth period to ensure its normal growth and development, promote vigorous growth, and inhibit reproductive growth. Prevent drought, less fertilizer, seedlings and other environmental conditions. 5, under the premise of strengthening management, timely spray growth hormone, the growth of 7-10 days of prosperous time, even spray 2-3 20-50 mg / liter of the nine hundred, can promote vegetative growth, inhibit convulsions and flowering. 6, appropriate early harvest, do not harvest when the convulsions are old. Inner Mongolia Hengxintonghui Supply Chain Management Services Co.,LTD , https://www.hxthfood.com