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四川利用杂交中稻的再生力强、光温光裕的优势,发展再生稻多增产一季稻谷,取得了极为明显的效果。目前再生稻面积已达600多万亩,亩产75.5～106公斤之间,最高亩产达到200公斤以上,为全省增产稻谷7亿多公斤。但是,现在再生稻的单产水平还较低,年度间产量的变动幅度也较大,蓄留成功率不到70％,如果将单一蓄留再生稻形成一种高产的耕作制度,还需深入研究,克服存在问题,使产量高而稳定。四川双季稻亩产虽达到700公斤以上,比中稻、再生稻亩增产100多公斤,但因早稻的亩产较中稻低,对稳定生产者心情的效果不如中稻现实,而栽种面积就会逐
In Sichuan, the hybrid rice has the advantages of strong regenerative ability, the advantages of light temperature and light tolerance, and the development of more rice yield in ratooning rice with more yield, and achieved extremely obvious results. At present, the area of ratoon rice has reached more than 600 million mu, with a per-mu yield of 75.5-106 kilograms. The highest mu yield reached 200 kilograms or more, contributing more than 700 million kilograms of paddy to the province. However, the yield of ratooning rice is still low now, and the variation of annual output is also large, with a success rate of less than 70%. If a single high-yielding ratoon rice is to be cultivated in a high yielding manner, further study is needed, Overcome the problems and make the output high and stable. Although the yield per mu of double-crop rice in Sichuan reached over 700 kg, it increased more than 100 kg per mu compared with that of middle rice and ratoon rice, but the effect of stabilizing the producer’s mood was not as good as that of middle rice because the yield per mu of early rice was lower than that of middle rice,