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近年来,我省双季稻实际播栽面积已达4400余万亩,总产为1372多万吨,占粮食作物总产的88～90％。但由于气候尤其是寒害的影响,致使双季稻生产潜力没有得到充分发挥,产量不稳,增值不快。本文拟从气象角度等方面浅议寒害的避抗方法,供参考。一、双季稻的寒害在整个双季稻生长发育期间,对其影响较大的寒害有三次。一是早稻播种育秧期,日平均气温连续三天以上小于10℃的春寒;
In recent years, the actual sowing area of double-crop rice in our province has reached 4400 mu and the total output is over 13.7 million tons, accounting for 88-90% of the total output of food crops. However, due to the impact of the climate, especially the chill injury, the potential for double-cropping rice has not been brought into full play and the output is unstable and the value added is not favorable. This article intends to discuss the method of avoiding the cold damage from the meteorological point of view for reference. First, the double crop of rice chill injury throughout the double cropping rice growth and development, the greater impact of cold damage three times. First, early sowing sowing seedlings, the average daily temperature for more than three days less than 10 ℃ in the spring;