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水稻在霜前能否成熟,对产量影响很大。我省各稻区,经常因低温冷害而造成水稻成熟不良。历史经验告诉我们,低温年水稻减产,除了和温度有直接关系,还与干旱缺水密切相联。1969年因插秧期天旱缺水,不少稻田等水插秧,有些田块直到6月末才插完秧;插秧后又因长期灌不上水,水稻滞长,造成出穗晚,贪青迟熟,产量锐减。1972年全省结束插秧
Whether rice can mature before frost has a great impact on output. Rice provinces in our province, often due to chilling damage caused by poor rice. Historical experience tells us that the reduction of rice production in low temperature, except with the temperature has a direct relationship, but also closely linked with drought and water shortage. 1969 due to drought during planting, many paddy fields and other water transplanting, and some plots until the end of June was inserted seedlings; after transplanting due to long-term irrigation can not, the rice stagnation, resulting in a late spike, greed green late Cooked, production dropped sharply. In 1972 the province ended transplanting