Agronomic optimization for cultivating hybrid Brassica napus L. variety,Fengyou 701
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摘要: 为探讨双低油菜新品种丰油701高产栽培技术模式,采取二次回归正交旋转组合设计研究了丰油701产量与氮钾肥用量、种植密度和移栽苗龄4个主要栽培因素的数量关系。结果表明,产量在2800 kghm-2以上的最佳农艺措施为N277.44~288.67 kghm-2、K2O 187.62~226.41 kghm-2、种植密度11.80万~12.61万株hm-2、移栽苗龄34.5~37.5 d。Abstract: In order to optimize the cultivation of the new,high yield hybrid rapeseed Fengyou 701(Brassica napus L.),an experiment was conducted.A mathematical model was established for the relationship between various cultivation measures and the crop yield by means of the quadric universal rotation design.The optimal agronomic conditions for a yield greater than 2 800 kghm-2 included: pure N at 277.44-288.67 kghm-2,K2O at 187.62-226.41 kghm-2,planting density at(11.80-12.61)?104 plantshm-2 and seedling transplant at 34.5-37.5 day old.
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Key words:
- Brassica napus /
- Fengyou 701 /
- cultivation /
- mathematical model
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