杂交水稻K优267和两优363播期与密度强化栽培(SRI)试验  

Trial with the System of Rice Intensive(SRI) Practices on the Planting Stage and Density of Hybrid Rice K-you 267 and Liangyou 363

作　　者：伍玉春 严宗卜[2] 

机构地区：[1]贵州省安顺市西秀区农技站,安顺561000 [2]贵州省农业科学院水稻研究所,贵阳550006

出　　处：《贵州农业科学》2005年第5期33-35,共3页Guizhou Agricultural Sciences

基　　金：贵州省农业科技攻关资助项目[黔科合农社字(2002)1106号]

摘　　要：采用水稻强化栽培方法,对K优267、两优363和对照汕优晚3在2个播种期和3种密度处理条件下进行试验,研究其产量、分蘖、有效穗、穗粒数和结实表现。结果:K优267、两优363和对照汕优晚3在4月17日播种,26.7 cm×26.7 cm密度栽插的处理产量最高,分别为761.5 kg/667m2、580.3 kg/667m2和608.6 kg/667m2。根据贵州省中高海拔地区的气候特点与生产实际,讨论了K优267和两优363强化栽培技术和示范推广应用问题。A trial with the System of Rice Intensive （SRI） practices was conducted to research the expressions of yields, tillers, panicles, full grains and seed sets for three hybrid rice K-you 267, Liangyou 363 and CK Shanyouwan 3 under the design of 2 sowing date and 3 planting density at Xixiu district of Anshun city of Guizhou province in 2003. The results showed that the best yield of K-you 267, Liangyou 363 or Shanyouwan 3 was 761.5 kg/667m^2 , 580.3 kg/667m^2 and 608.6 kg/667m^2 respectively at the sowing date April 17 and the planting density 26.7 cm×26.7 cm. It is discussed to the extension and utilization of new hybrid K-you 267 and Liangyou 363 with SRI practices on the middle-high elevation areas of Guizhou province.

关 键 词：杂交水稻 K优267 两优363 密度 播期 强化栽培 

分 类 号：S511.048[农业科学—作物学]