不同施肥水平及播种量对一年生黑麦草A2003产草量的影响  

Effects of Different N,P and K Application Level and Sowing Quantity on Fresh Grass Yield of A2003

作　　者：尚以顺 舒健虹 陈燕萍 熊先勤 赵熙贵 

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

出　　处：《贵州农业科学》2008年第5期135-136,146,共3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：采用五元二次回归旋转组合设计方法,以播种量、有机肥、氮、磷、钾作为试验因子,研究了一年生黑麦草A2003新品系的最佳播种量及其施肥水平,建立了高产栽培配套技术数学模型。结果表明:在本试验条件下,以播种量为1.2 kg/667m2、有机肥2 999 kg/667m2、氮30 kg/667m2、磷20 kg/667m2、钾20 kg/667m2的组合,可获得最高产草量,达5 015 kg/667m2。The quadratic regression rotational combination design was used to study effects of different N, P and K application level and sowing quantity on fresh grass yield of A2003 and the mathematical model for its high fresh grass yield was established. The results showed that 5 015 kg/667m^2 of fresh grass yield could be obtained under the cultivation conditions of 1.2kg/667m^2 of sowing quantity, 30kg/667m^2 of N, 20kg/667m^2 of P, 20kg/667m^2 of K and 2999kg/667m^2 of organic manurein the test.

关 键 词：一年生黑麦草 A2003 鲜草产量 施肥水平 播种量 栽培技术 

分 类 号：S544.904[农业科学—作物学]