不同播期与栽插株数对杂交水稻K优267产量与生育期的影响  

Effects of Different Sowing Date and Seedling Number per Hole on Yield and Growth Period of K-you 267

作　　者：陈惠查[1] 游俊梅[1] 严宗卜[1] 金桃叶[1] 

机构地区：[1]贵州省农业科学院水稻研究所,贵阳550006

出　　处：《贵州农业科学》2006年第1期59-62,共4页Guizhou Agricultural Sciences

基　　金：贵州省农业科技攻关项目[黔科合农社字(2002-1106)]

摘　　要：2003年对杂交水稻新组合K优267,在贵州中高海拔的贵阳地区进行了不同播期、秧龄和栽插株数的栽培试验。结果表明:K优267的各处理因子平均产量为631.1 kg/667m2,比汕优晚3(CK)增产10.4%。其中以3月31日播种、秧龄24 d、单株栽插方式的产量最高,达688.6 kg/667m2,比汕优晚3(CK)最佳方式的产量(646.7 kg/667m2,于3月31日播种、秧龄24 d、3株栽插方式)增产6.5%。并对该组合实行小秧龄强化栽培的有关技术问题等进行了讨论。The cultivation experiment of new hybrid rice variety, K-you 267 was conducted to investigate the effects of different sowing date and seedling number per hole on yield and growth period of K-you 267 in Guiyang in 2003. The results showed that the average yield of different treatments was 631.1kg/667m^2 , 10.4% higher than the average yield of CK（Shanyouwan 3）. The best yield gained from the treatment with sowing date, on 31, March, 24 days seedling age and single seedling per hole was 688.6kg/667m^2 , 6.54% higher than the best yield of CK from the treatment with sowing date on 5 May, 15 days seedling age and three seedlings per hole. The cultivation technique for young seedling of K-you 267 was discussed.

关 键 词：播期 栽插株数 杂交水稻 K优267 产量 生育期 

分 类 号：S511.042[农业科学—作物学]