在农业学大寨群众运动中,营口地区广大贫下中农为进一步提高土地利用率,增加稻田的复种指数,提高单位面积粮油产量,积极进行以油菜、小麦为前茬,下茬复种水稻的水田改制工作。复种的水稻秧龄究竟多长适合,这是生产中遇到的实际问题,针对这个问题,我们今年进行了试验。一、试验方法:试验品种为丰锦、农垦21号、吉梗60、 In the Dazhai Mass Movement for Agriculture, the majority of poor and middle-income peasants in Yingkou, in order to further increase land use efficiency, increase the multiple cropping index of rice fields, and increase output of grain and oil per unit area, actively carried out the paddy field restructuring with rapeseed and wheat as the former crop and the second crop as the second crop. jobs. How long the seedling age of multiple cropping is appropriate is a practical problem encountered in production. In response to this question, we conducted a test this year. First, the test method: test varieties Fengjin, Nongken 21, Kyrgyzstan 60,