油菜产量与种植密度的新探讨

用甘蓝型油菜（Brassica napus L.)扬油一号供试，主试验采用裂区设计，设不同剪叶处理作验证试验。经密度-产量因素的多重分析指出，欲突破目前产量水平，又能降耗、节本，似应摈弃常规密度（1万株/亩左右）而代之以高密度（2万株/亩左右），提出以提高种植密度的方法创造5-7个一次有效分枝的紧凑型株体，以发挥群体角果的生

Inquire into Population Seed Yield and Density of Rapeseed

A rape seed (B. napus)cultivation pxperiment for the variety Yangyou No. 1 wasconducted with the split plot design, that was the main part and the leaf cutting treat-ment as the auxiliary part. The analysis of the effect of densities on yield indicatedthat in order to improve the rape seed production the commonly used density(10,000 plant per mu) should be replaced by the higher density (20, 000plant per mu). The compact plant type with about five to seven first order branchescould be produced under high density and the proper size of the silique populationwith high productive potentiality would be developed.