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中国农学通报

中国农学通报 ›› 2005, Vol. 21 ›› Issue (4): 142-142.

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Study On Yield of the Rape in Different Nitrogen and Density

艾复清,李改珍   

  • 出版日期:2005-04-05 发布日期:2005-04-05

Study On Yield of the Rape in Different Nitrogen and Density

Ai Fuqing, Li Gaizhen   

  • Online:2005-04-05 Published:2005-04-05

摘要： 运用二因素五水平回归正交旋转组合设计，进行施氮量与密度对油菜产量影响的研究。结果表明，随着施氮量、密度的增加，产量表现出快速增加→缓慢增加→缓慢减少→快速减少的趋势，施氮量的效应大于密度效应；油菜产量主要受全田有效角果数影响，二者相关系数为0.9577，决定系数达0.9171，而角粒数、粒重主要遗传因素影响；施氮量与密度的最佳组合是施氮量214.4~256.9kg/hm2，密度10.1万~11.1万株/ hm2，控制在此范围内油菜产量可达3000kg/hm2以上。

Abstract: Using quadratic rotational regression combination design to study the influence on yield of the rape under the different nitrogen and density. The result showed that the yield which was influenced by active silique of the field mainly provided a parabola w