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冻害是吉林省西部和内蒙古东部半干旱地区紫花苜蓿生产上存在的普遍问题。为了进一步摸清紫花苜蓿冻害发生的气象规律,吉林省白城地区农业气象试验站的科技人员与内蒙古兴安盟图牧吉牧场和吉林省白城牧场协作于1981～1984年对上述两牧场人工种植的公农一
Frost damage is a common problem existing in the production of alfalfa in the western and eastern semi-arid regions of Jilin Province. In order to further understand the meteorological law of alfalfa frost damage occurred, the scientists and technicians from Baicheng Prefecture Meteorological Experimental Station of Jilin Province cooperated with Tujiajiu Pasture of Xing’an League in Inner Mongolia and Baicheng Pasture of Jilin Province in 1981 ~ 1984 One agricultural