施氮量和种植密度对中油杂11产量的影响  

Effect of N Fertilizer Application Levels and Planting Density on the Yield of Hybrid Rapeseed Zhang-you-za No.11

作　　者：赵乃轩 李必钦[1] 

机构地区：[1]湖北省恩施州农业科学院,湖北恩施445000

出　　处：《湖北农业科学》2006年第6期724-726,共3页Hubei Agricultural Sciences

摘　　要：研究结果表明,随着栽培密度的增加,中油杂11冬前绿叶数、最大叶叶面积、有效分枝数、有效角果数、千粒重等呈下降趋势。该品种在中等肥力水平下的适宜种植密度为每公顷12万株。随着施氮量的增加,其有效分枝数、有效角果数、千粒重、产量呈先上升后下降的趋势,在种植密度为每公顷12万株、施氮量为150kg的条件下可获得最高产量。The results of the experiment on the rape variety ＂Zhong-you-za No.ll＂indicated that as the density increased, amount of green leaves before winter, the biggest leaf area, the valid branches, number of pods per plant and 1 000-seed weight decreased. The suitahle density of ＂Zhong-you-za No.ll＂ on the medium fertilizer level was 120 000 plants.ha^-1. Along with increasing in N supply, the valid branches, number of pode per plant, 1 000-seed weight and seed yield increased at first and then decreased. High seed yield maybe gained in 120 000 plants.ha^-1 and 150kgN.ha^-1.

关 键 词：栽培密度 施肥量 油菜 产量 

分 类 号：S513[农业科学—作物学]