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通过移栽期、密度、氮素水平 3因素 2次饱和D最优回归设计 ,研究了不同农艺措施对地膜覆盖栽培油菜产量因素的影响及互作 ,根据地膜覆盖栽培油菜生长发育的规律 ,提出了生产技术改进意见
The effects of different agronomic practices on the yield factors of rape cultivated with plastic film mulching and their interaction were studied by three-factor-two-times saturated D-optimal regression design of transplanting period, density and nitrogen level. According to the law of growth and development of rape cultivated with mulching film, Opinions on improving production technology