【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。更多还原

【Abstract】 The results of the experiment on the rape variety "Zhong-you-za No.11"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 suitable density of "Zhong-you-za No.11" 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.更多还原