我们生产队地处川西平原,油菜是夏熟生产主要作物之一。1971年以前油菜前作以一季中稻为主,以后双季稻和晚秋作物面积迅速扩大,1973年以来,复种指数达到290%以上,油菜都种在双季晚稻和晚秋作物田内,移栽期从11月上、中旬推迟到12月中、下旬,因此,夺取三熟制迟栽油菜的高产,成为我们生产队发展油菜的一个重要课题。为 Our production team is located in the western Sichuan Plain, rape summer ripe production is one of the main crops. Before 1971, rapeseed was mainly made from one season of middle rice. After that, the area of ​​double cropping rice and late autumn crop expanded rapidly. Since 1973, the multiple cropping index reached more than 290%. The rapeseed was planted in double cropping late rice and late autumn crop fields, Therefore, it is an important issue for our production team to develop rapeseed to seize the high yield of the planted late rapeseed. for