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一九七六年,我们在柳州地区北部、中部、南部四个县八个气象哨、农科所开展预防寒露风试验,秋收结束后,又对受灾重和比较轻的县、社、队作典型调查,结果证明不利的气象条件是晚稻空秕率增多的主要原因。现作如下分析。一、晚稻后期受冷害是导致空秕率增多的主要原因水稻在正常的生育过程,由于管理不当,配子体发育不完全会产生一定的空秕率,一般20％,不超过25％,并且是局部的、地方性的。但去年柳州地区晚稻受害遍及东西南北中的每一个公社、每一个角落,这样
In 1976, we conducted experiments on prevention of cold and wind in eight meteorological posts and agricultural institutes in the northern, central and southern four counties of Liuzhou. After the autumn harvest ended, we conducted a review of the hardest-hit and lesser counties, communities and teams The typical survey results show that unfavorable weather conditions are the main reason for the increase of the empty rice rate in late rice. Now make the following analysis. First, the late rice chilling injury is the main reason leading to an increase in the rate of empty rice in normal fertility process, due to improper management, gamete development incomplete will have a certain empty rate, usually 20%, not more than 25%, and is part of Of, local. Last year, however, the late rice in Liuzhou suffered widespread damage to every commune and every corner of East, West, North and South,