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当前位置: 首页 > 文章 > 湘东地区不同耕整方式下直播油菜适宜播种量研究 湖南农业科学 2012 (19) 29-33
Position: Home > Articles > The Optimal Seeding Rate for Direct-seeding Rape with Different Tillage Methods in the Eastern Hunan Hunan Agricultural Sciences 2012 (19) 29-33

湘东地区不同耕整方式下直播油菜适宜播种量研究

作  者：
范连益;帅海洪;陈卫江;惠荣奎
单  位：
鳢陵市农业局粮油站;湖南省作物研究所
关键词：
油菜;耕整方式;直播;播种量;三熟
摘  要：
采取裂区试验,研究了湘东地区三熟制直播油菜丰油730在机械开沟浅耕直播、机械开沟免耕直播、板田免耕直播3种播种方式下不同播种量对油菜生长发育和产量的影响。试验结果表明:机械开沟浅耕直播或机械开沟免耕直播方式优于板田免耕直播;10月下旬播种,机械开沟浅耕直播或机械开沟免耕直播适宜播种量为4.5 kg/hm(2收获密度约60万株/hm2)左右;板田免耕直播方式应根据土壤墒情及肥力状况,适当调节并加大播种量。
译  名：
The Optimal Seeding Rate for Direct-seeding Rape with Different Tillage Methods in the Eastern Hunan
作  者：
FAN Lian-yi1,SHUAI Hai-hong2,CHEN Wei-jiang1,HUI Rong-kui1(1.Hunan Crop Research Institute,Changsha 410125,PRC; 2.Grain and Oil Station,Agriculture Bureau of Liling City,Liling 412200,PRC)
关键词：
rape;tillage method;direct-seeding;seeding rate;triple cropping
摘  要：
Using split plot experiment to study the influences of three seeding methods(trenching by machine and direct-seeding with shallow tillage,trenching by machine and direct-seeding with no tillage,and direct-seeding with no tillage) and different seeding rates on growth and yield of rape in triple cropping fields in the eastern Hunan province.The results showed that trenching by machine and direct-seeding with shallow tillage and trenching by machine and direct-seeding with no tillage are better than direct-seeding with no tillage.Seeding in late October,the optimal seeding rate for trenching by machine and direct-seeding with shallow tillage or trenching by machine and direct-seeding with no tillage was around 4.5 kg/hm2(harvesting density was about 60×104 plants/hm2).Direct-seeding with no tillage should adjust the soil moisture content and soil fertility and increase seeding rate according to local conditions.

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