摘要
运用三因素五水平二次正交旋转组合设计方法,研究了雅安地区蓉油3号栽植密度、氮化肥与磷化肥的用量对产量及主要经济性状的影响,并建立了相应的数学模型,得出在试验的土壤肥力水平下产量达2.25t/hm2以上的高产栽培技术方案是:栽植15—16.5株/m3,分别施化肥N100—150kg/hm2和P2O545—75kg/hm2。
A field experiment of quadratic orthogonal regressive rotation design of three factors was conducted. The mathematical models of planting density, application rate of nitrogen and phosphorus for high-yielding and other economic characters were established and the scheme of cultural practices for yielding above 2.25t/hm 2 was computed from the model as fellows: transplanting at the densities of 15.5—16.5 plants/m 2 , applying the fertilizers N 100—150 kg/hm 2 and P 2 O 5 45—75kg/hm 2 .
出处
《四川农业大学学报》
CSCD
1997年第3期350-351,共2页
Journal of Sichuan Agricultural University