【摘要】 以密度、氮素、磷素、钾素等为参试因子,采用四元二次回归正交旋转组合设计,对新型甘蓝型黄籽油菜杂交种"渝黄1号"高含油量栽培的综合农艺措施进行了研究。结果表明:在相同或相似条件下,种子含油量大于45.11%的适宜农艺措施组合为:密度以13.0～14.0万株/hm2为适宜,氮素(纯N)以117.3～132.7kg/hm2为佳;磷素(纯P)以133.8～149.6kg/hm2为适宜;钾素(纯K)以109.0～136.9kg/hm2为佳。主要农艺措施对种子含油量增减作用的大小依次为:磷素>氮素>密度>钾素。更多还原

【Abstract】 The orthogonal gyration combination design was used in this experiment with plant density, and N, P and K rates as the influencing factors. Under the ecological conditions of the trial location, the following combination of the factors ensured a stable oil content of >54.11%: plant density 13.0 × 10⁴～14.0×10⁴ plants/hm², nitrogenous fertilizer at 117.3～132.7 kg N/hm², phosphate fertilizer at 133.8～149.6 kg P₂O₅/hm² and potash fertilizer at 109.0～136.9 kg K₂O/hm². Phosphate showed the greatest effect on seed oil content, followed in order by nitrogen, plant density and potash.更多还原