稻田套播油菜栽培技术研究

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近年来由于双季稻(包括迟熟粳稻)面积和水稻轻简化栽培面积不断扩大,水稻成熟期推迟,稻油茬口矛盾加剧,晚稻收获后种植下茬油菜难以获得较高产量,导致目前长江流域冬闲田面积累计已超过600万hm2。在双季稻区采用稻田套播油菜栽培模式,可以提前油菜播种期、有效缓解稻油茬口矛盾,充分利用温光资源,提高复种指数、增加油菜产量,因而是利用我国南方双季稻区冬闲田的有效手段。目前,稻田套播油菜栽培模式在湖北、江苏、安徽、江西、浙江等省均已采用,但在实际生产中并没有建立与之相适应的栽培技术体系,导致其产量低而不稳。基于
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