越冬期冻害是广大北方麦区小麦生产中的灾害之一,尤其在低温、干旱年份,冻害更重。据经验,预防小麦越冬期间冻害,主要有以下十项技术措施。一、选好品种,提高播种质量。注意使用适合当地的抗寒小麦品种,如鲁麦21、22号,豫麦34、50号、冀麦40、41号,晋麦51、53号等。注意提高播种质量,播种深度掌握在3～5厘米之间。二、适量追肥。对于播种前施肥不足的麦田,越冬之前追肥,能巩固小麦的有效分蘖,增强植株(?) Winter overwinter frost damage is one of the disasters in wheat production in the northern wheat area, especially in cold and dry years. According to experience, the prevention of frost damage during winter wheat, there are the following ten technical measures. First, select a good variety, improve seeding quality. Note that the use of suitable local varieties of cold-resistant wheat, such as Lumai 21,22, Yumai 34,50, Ji Ma 40,41, Jinmai 51,53 and so on. Pay attention to improve the quality of planting, sowing depth in 3 to 5 cm. Second, the amount of fertilizer. For wheat fields with insufficient fertilizer before sowing, top dressing before winter can consolidate the effective tillers of wheat and enhance the plant (?)