我们这里每年立春以后,常常遇到春寒袭击,造成三麦黄叶、死叶,甚至死苗严重。1978年我在大东公社嵇码大队蹲点,于1月20—28日采取泥浆泼浇三麦426亩,占三麦面积的57％。泼泥浆后正好遇着2月份低温和以后的明显春寒,泼泥浆的苗色青绿,未浇的苗黄。2月10日调查,没浇泥浆的黄叶一片;2月25日大冻后调查,浇的比没浇的每株茎叶数少0.6片叶,茎 Every year after the spring of this year, we often encounter spring cold attacks, resulting in three yellow leaves, dead leaves and even dead seedlings. In 1978, I was in Dadong Commune by bar code brigade and took mud and poured 426 mu of muddy wheat on January 20-28, accounting for 57% of the total area of ​​Sanmai. After the mud spilled just in February with low temperature and obvious after the cold, splashing seedling green color, not pouring seedlings yellow. February 10 investigation, did not pour mud yellow leaves one; February 25 after the freezing investigation, pouring than the number of leaves per pour less 0.6 leaves, stems