非洲狗尾草种子丰产栽培技术研究  

Study on High Yield Cultivation Techniques of Setaria sphacelata Seeds

作　　者：罗天琼 莫本田[2] 赵明坤 张瑜 LUO Tian-qiong;MO Ben-tian;ZHAO Ming-kun;ZHANG Yu(Pratacultural Research Institute in Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;Animal Husbandry and Veterinary Research Institute in Guizhou Academy of Agricultural Sciences,Guiyang 550005,China)

机构地区：[1]贵州省农业科学院草业研究所,贵州贵阳550006 [2]贵州省农业科学院畜牧兽医研究所,贵州贵阳550005

出　　处：《中国草地学报》2020年第4期161-168,共8页Chinese Journal of Grassland

基　　金：贵州省科技计划项目(黔科合NY〔2014〕3052号);国家现代牧草产业技术体系项目(CARS-34);中国南方草地牧草调查项目(2017FY100602)贵州子专题资助。

摘　　要：用五元二次正交旋转组合设计研究播种量、有机肥、氮肥、磷肥和钾肥对非洲狗尾草品系2010WS种子产量的影响,结果表明5个参试因子对非洲狗尾草种子产量的影响为有机肥>钾肥>氮肥>磷肥>播种量,当播种量为3.75kg/hm^2、有机肥为7497kg/hm^2、氮肥为453.56kg/hm^2、磷肥为300.15kg/hm^2、钾肥为453.56kg/hm^2,可获得621.41kg/hm^2的高产,获纯收益50585元/hm^2。In order to study the effects of different cultivation measures on the seed yield of Setaria sphacelata, the experiment adopted quintuple quadratic orthogonal rotation combined design to analyze the effects of sowing rate(X1), organic fertilizer(X2), nitrogen fertilizer(X3), phosphorus fertilizer(X4) and potassium(X5) on the seed yield of S. sphacelata cv.2010 WS. The results showed that the order of five test factors on the seed yield of S.sphacelata was organic fertilizer(X2)>potassium fertilizer(X5)>nitrogen fertilizer(X3)>phosphate fertilizer(X4)>sowing rate(X1). Further analysis showed that when the sowing rate was 3.75 kg/hm^2, organic fertilizer was 7497 kg/hm^2, nitrogen fertilizer was 453.56 kg/hm^2, phosphorus fertilizer was 300.15 kg/hm^2 and potassium fertilizer was 453.56 kg/hm^2, the highest seed yield of 621.41 kg/hm^2 was obtained, and the net income was 50585 yuan/hm^2.

关 键 词：非洲狗尾草 播种量 施肥量 种子产量 栽培措施 

分 类 号：S544.3[农业科学—作物学]