一年生黑麦草A2003种子丰产栽培技术  

The Cultivation Technique for Seed Yield of A2003,a New Lolium multiflorum Line

作　　者：赵熙贵 尚以顺 

机构地区：[1]贵州省饲草饲料工作站,贵州贵阳550001 [2]贵州省草业研究所,贵州独山558200

出　　处：《贵州农业科学》2008年第5期137-138,共2页Guizhou Agricultural Sciences

基　　金：贵州省攻关项目"优良牧草新品种引进;选育与示范推广"[黔科合NY(2006)3011];贵州省农业动植物育种专项项目"一年生黑麦草A2003中间材料生产试验示范"[黔农育专字(2006)025];贵州省攻关项目"牧草新品种黑麦草选育与产业化开发"[黔科合农G(2007)4006]

摘　　要：采用二次回归旋转组合设计方法，研究了氮、磷、钾和有机肥4因子对一年生黑麦草A2003种子产量的影响，建立了相应的数学模型，结果表明：氮肥用量在15．98～19．02kg／667m^2、磷肥用量在22．83～27．17kg／667m^2、钾肥用量在9．23～10．69kg／667m^2、有机肥用量在2350．77～2497．04kg／667m^2时，一年生黑麦草A2003种子产量大于42．73kg／667m^2，为较适宜组合。The quadratic regression rotational combination design was used to study effects of N, P, K and organic manure on seed yield of A2003 and the mathematical model for its high seed yield was established. The results showed that more than 42.73 kg/667m^2 of seed yield could be obtained under the application condition of 15.98 kg/667m^2 to 19.02 kg/667m^2 of N, 22.83 kg/667m^2 to 27.17kg/667m^2 of P, 9.23kg/667m^2 to 10.69kg/667m^2 of K and 2350.77kg/667m^2 to 2497.04kg/ 667m^2 of organic manure.

关 键 词：一年生黑麦草 A2003 种子产量 栽培技术 数学模型 

分 类 号：S544.904[农业科学—作物学]