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

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.