论文部分内容阅读
本省大小麦全生育期和两个关键生育期内的积温、降水和日照条件见附表1和附表2。附表3则是各地区所在县气象站11—5月份的有关气候资料。本省各地大小麦生育期内常年0℃以上平均积温大麦1717.1—2005.6℃,小麦1890.7—2186.7℃,年际变化较小,变异系数在8％以下,极大部分年份的积温大麦在1600—2000℃之间,小麦在1800—2300℃之间。对照表2所列全生育期所需要的积温,可见热量条件一般是充足的。≤3℃的初终日期浙北浙中分别出现在12月25日前后和1月5日前后,浙南终年
See Table 1 and Table 2 for accumulative temperature, precipitation and sunshine conditions in the whole wheat growing period and two key growing periods in the province. Schedule 3 is the climate data of the meteorological stations of the counties and counties in each region from November to May. During the growth period of large and small wheat throughout the province, the average accumulated temperature above 0 ℃ in barley 1717.1-2005.6 ℃, wheat 1890.7-2186.7 ℃, the interannual variation is small, the coefficient of variation is below 8%, the accumulated barley temperature in most years is between 1600-2000 ℃ Between the wheat at 1800-2300 ℃. Table 2 lists the total growth period required for the accumulated temperature, we can see the heat conditions are generally adequate. The initial date of ≤3 ℃ in Zhejiang and Zhejiang were appeared before and after December 25 and before January 5,