杂交油菜黔油22号稀植栽培的模式研究

Study on Cultivation Models at Low Density for Qianyou 22,a New Hybrid Rape Variety

为给新品种的推广应用提供参考依据,采用3因子5水平通用旋转回归组合设计,以施氮量、播期及移栽密度为对象,研究了优质杂交油菜黔油22号稀植栽培因子与产量间的关系。结果表明:黔油22号在金沙县产量在180kg/667m2以上的稀植优化栽培方案为施纯N 15.93～20.47kg/667m2,播期9月3—8日,密度3 554～3 884株/667m2。

The regression mathematical models between yield of Qianyou 22 and N fertilizing amount,sowing time and planting density were established by the regression rotational combination design to provide references for popularization and application of new rape varieties.The results showed that the best cultivation conditionsfor yield over 180 kg/667m2 in Jinsha County at low density included N 15.93～20.47 kg/667 m2,sowing time September 3 to 8 and planting density 3 554～3 884 plant/667 m2.