双季稻区早熟油菜免耕直播高产栽培技术探讨  

Study on High-yield Culture Technique of Early Mature Rapeseed in Till-less Direct Seeding Way in Double-season Rice Region

作　　者：刘宁[1] 袁卫红[1] 邹乐萍[1] 谢蓉[1] 魏伟[1] 

机构地区：[1]江西省宜春市农业科学研究所,江西宜春336000

出　　处：《天津农业科学》2011年第4期42-44,共3页Tianjin Agricultural Sciences

基　　金：国家科技支撑计划项目(2010BAD01B11)

摘　　要：研究了免耕直播不同播种期、不同直播密度、不同播种方式对双季稻区早熟油菜产量的影响。结果表明:在江西宜春,早熟油菜免耕直播获得高产的最佳播种期为10月20日左右,适宜直播密度为30万～37.5万株.hm-2,最好的播种方式为免耕撒播,其产量略低于免耕条播和免耕穴播,但能节约成本1500.0～1800.0元.hm-2,提高效益1252.5～1470.0元.hm-2。The effects of different sowing date,different planting density and different sowing method on high yield of early mature rapeseed were studied in till-less direct seeding way in double-season rice region.The results showed that in Yichun city early mature rapeseed could obtain high yield in till-less direct seeding way.The best sowing date was October 20th or so,the proper planting density was 30×104～37.5×104 plants·hm-2,the best sowing method was no-tillage broadcast sowing.The yield was slightly lower than no-tillage drill sowing and hole sowing.But the cost could be saved 1 500.0～1 800.0 yuan·hm-2,the benefit could be increased 1 252.5～1 470.0 yuan·hm-2.

关 键 词：双季稻区 早熟油菜 免耕直播 栽培技术 产量 

分 类 号：S511[农业科学—作物学]