摘要
试验采用二次回归正交旋转组合设计,对毕玉4号栽培技术进行研究,结果表明:≥500kg/667m^2的综合栽培措施为:密度3579~3733株/667m^2,氮肥24.64~27.36kg/667m^2,磷肥17.50~20.18kg/667m^2,钾肥16.43~19.16kg/667m^2。对玉米产量影响程度为N〉K2O〉P2O5〉密度。因此,要获得毕玉4号高产,需重施氮肥,合理施用钾、磷肥及适当的种植密度。
The quadratic regression orthogonal rotational combination design was used to study the cultivation technique for high-yielding of Biyu 4. The results show that the comprehensive cultivation measure for over 500 kg/667m^2 of Biyu 4 includes 3579-3733 plant/667m^2of density, 24.64-27.36 kg/667m^2 of nitrogen, 17.50-20. 18 kg/667m^2 of phosporus and 16.43~ 19.16 kg/667m^2 of potassium, and the factors of affecting yield are N〉K2O〉P2O5〉density, which indicates that the cultivation technique for high-yielding of Biyu 4 should be including heavy applying N fertilizer, reasonably applying K and P fertilizer and keeping the rational plant density.
出处
《贵州农业科学》
CAS
2007年第1期31-33,共3页
Guizhou Agricultural Sciences
基金
毕节地区玉米100万亩优质高产示范工程深化研究项目(2004BJ0028)
关键词
毕玉4号
高产
栽培技术
模式
Biyu 4
high-yielding, cultivation technology, model