摘要
2002～2003年在湖南省石门县开展了油茬田免耕直播稻的适宜播期和播种量的研究,探讨了3个播种期和3个播种量对两优培九的生育期、株高、总叶片数、出叶速度、茎蘖动态、产量和产量构成因素的影响。试验结果表明,两优培九作一季中稻免耕直播栽培,以5月中旬播种,播种量22.5kg/hm2较适宜。
A study of seeding time and seed rate of direct seeding rice under no-tillage in rape stubble fields was conducted in Shimen county, Hunan province in 2002～2003. The effects of three different seeding times and amounts on growth duration,stem length, total leaves, tillering behavior, yield and its components of Liangyoupeijiu were studied. The results showed that Liangyoupeijiu is suited to be cultivated as single season cropping under no tillage and direct seeding conditions.Optimum seeding time is in the middle 10-days of May, and optimun seed rate is 22.5 kg/hm^2.
出处
《作物研究》
2004年第3期151-153,158,共4页
Crop Research
关键词
水稻
免耕直播
播种期
播种量
Rice
No-tillage directed seeding
Seeding times
Seeding amount
