以栽培密度、基肥、苗肥、腊肥、薹肥等为参试因子 ,采用五元二次回归正交旋转组合设计 ,对双低优质油菜湘油 1 3号高产栽培综合农艺措施进行了研究 .结果表明 :(1 )各因子对产量增减作用的大小依次为腊肥、苗肥、基肥、薹肥、密度 ;平均变幅值大小依次为 ,基肥、腊肥、苗肥、密度、薹肥 .(2 )经计算机模拟寻优 ,在高产优化农艺方案中 ,每公顷栽培密度要求 1 8～ 2 2 .5万株 ,基肥要求 30 0～ 45 0 kg,腊肥要求 6 0～ 75 kg,占总追肥的 6 0 %左右 ,为苗肥的 2倍 ,薹肥的 3倍多 ,目标产量要求愈高 ,优化方案中要求的薹肥量就愈少 .(3)因子交互作用分析显示 ,高密度低肥料和高肥料低密度均能获得高产 ,但高密度低肥料是高产高效栽培的有效途径 Based on the planting density, basal fertilizer, seedling fertilizer, waxy fertilizer and sedge fertilizer as the test factors, the comprehensive agronomic practice of double low quality rapeseed Xianyou No.13 with high yield was studied by five quadratic regression orthogonal rotation combination design The results showed as follows: (1) The effect of each factor on the yield increase and decrease were as follows: waxy fertilizer, seedling fertilizer, basal fertilizer and sedge fertilizer, the average amplitude was in the order of basal fertilizer, (2) Optimized by computer simulation, in the high-yield and optimized agronomic scheme, the planting densities per hectare are 18-22500, the basal fertilizer requirement is 30 0 ~ 45 0 kg, the ash fertilizer requirement is 60 ~ 75 kg , Accounting for about 60% of the total top-dressing fertilizer, which is 2 times of the Miao-fat and 3 times of that of the sedge fertilizer, and the higher the target production requirement, the less stalks fertilizer is required in the optimization scheme. (3) Factor interaction analysis shows , High-density low-fertilizer and high-fertilizer low-density can get high yield, but high-density low-fertilizer is an effective way of high yield and high efficiency cultivation