低温对早稻播种育秧在不同覆盖物下的危害调查报告

• 机 构: 湖南省湘潭地区农业气象试验站,
• 出 处: 农业气象
• 发表日期: 1982年03期
• 关键词: 播种育秧 危害调查 寒潮 起点温度 早稻 湘乡 北向 盖物 均温 隔层

今年3月23日傍晚至24日,从蒙古南下的强冷空气袭击我区,自北向南出现了寒潮大风,48小时内,湘乡、湘潭日平均气温下降了16℃。此次寒潮不但强度大而且时间长,从24—28日连续五天日均温在8℃以下,未达到水稻生长的起点温度(10℃)见表1。

On the evening of March 23 this year, on the 24th, strong cold air from the south of Mongolia hit our area and a cold wind was blowing from north to south. Within 48 hours, the average temperature in Xiangxiang and Xiangtan dropped by 16 ℃. The cold wave is not only intense but long-lasting, with average daily temperature below 8 ° C for five consecutive days from 24 to 28 days, and the onset temperature of rice growth (10 ° C) is not shown in Table 1.