论文部分内容阅读
油菜的干物质积累是形成籽粒产量的物质基础。关于氮素营养对油菜干物质积累的影响已有一些研究，但对油菜各器官的干物质积累动态及不同施氮水平对干物质积累的影响未见有系统的报道。此外，以往的研究多以常规油菜品种为材料，近年来杂交油菜因其具有较强的营养生长优势和生?
Dry matter accumulation in rape is the material basis for the formation of grain yield. Some studies have been conducted on the effects of nitrogen nutrition on dry matter accumulation of rapeseed. However, there is no systematic report on the dynamics of dry matter accumulation in different organs of rape and the effects of different nitrogen levels on dry matter accumulation. In addition, the past researches mostly used the conventional rapeseed varieties as the material. In recent years, the rapeseed has the advantages of strong vegetative growth and health.