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绪言本省耕地面积2700多万亩,水田面积约占80％,双季连作稻面积约占水稻面积的90％。七十年代以来,麦——稻——稻面积约占40％。早稻面积1700～1800万亩左右,晚稻面积1900～2000万亩上下。解放后,我省粮食亩产翻了二番,主要是双季连作稻的推广及其产量的不断提高的结果。因此,在我省粮食生产中,提高连作稻的产量,具有举足轻重的地位。本省地处我国东南沿海,属亚热带季风气候带,光、热、水资源丰富,水热基本同步。发展不同品种搭配的连作稻种植制度,对于充分合理利用我省的气候资源,提高粮食产量具有重要的意义。
Introduction The province has more than 27 million mu of cultivated land, paddy fields account for about 80% of the total area and double cropping rice accounts for about 90% of the paddy area. Since the seventies, wheat - rice - paddy area accounts for about 40%. Early rice area of 1700 ~ 1800 mu, late rice area of 1900 ~ 2000 mu up and down. After the liberation, the grain yield in our province had quadrupled, mainly as a result of the promotion of double-cropping and continuous improvement of rice output. Therefore, it is of decisive importance to increase the output of continuous cropping rice in grain production in our province. The province is located in China’s southeast coast, is a subtropical monsoon climate zone, light, heat, water rich in water and heat basically synchronized. It is of great significance to develop the cropping system for continuous cropping of different varieties in order to fully and reasonably utilize the climate resources in our province and increase the grain yield.