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我县地处杭嘉湖平原。1956年开始种植双季稻,目前双季稻面积占种植面积的81%,其中新三熟制(春粮、双季稻)面积占水稻种植面积的46.1%。双季稻生产与气象条件关系十分密切,特别是新三熟制,季节紧迫,对气候条件要求严格,往往遇到温度“二头低”的矛盾,最后影响到连作晚稻是否能安全抽穗的问题。连作晚稻抽穗开花前后的低温危害,是造成空秕、翘稻头的直接原因。各年的气候概况,都有一定的独特性,热量也有一定的差异,以一两年的气候概况作常年规律来布局生产,往往有很多
My county is located in Hangzhou-Jiaxing-Huzhou Plain. Double-cropping rice began to be planted in 1956. At present, the area of double-crop rice accounts for 81% of the acreage. The area of new three-cropping system (spring grain and double cropping rice) accounts for 46.1% of the total area planted to rice. The production of double cropping rice has very close relationship with meteorological conditions. Especially the new three cropping system, with tight seasons and severe climatic conditions, often encounters the contradiction of “low temperature” and finally affects the safe heading of continuous cropping late rice . Even for late heading and flowering before and after heading low-temperature hazards, is the cause of the empty pomfret, Alice straight head cause. Each year’s climate profile, has a certain uniqueness, there are some differences in calories, with a year or two of the climate profile for the perennial law to layout production, often a lot