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采用分层隔水盆栽试验 ,研究不同土壤状况下 ,表层土壤干旱 ,下层土壤湿润条件下 ,下层土壤中的水分和养分对油菜营养生理的影响 ,结果表明 ,土壤上下层干旱使油菜生长严重受抑 ,而下层湿润且硼含量充分的土壤上栽培的油菜可获得生长所需的水分和硼 ,从而改善其营养状况 ,增加其生物量 .土壤湿润情况下 ,油菜对土壤硼的利用效率增强 ,而土壤中硼各组分对油菜的有效性也有显著变化
The effects of soil moisture and nutrients on the nutrition physiology of rape under different soil conditions, top soil arid and lower soil wetting conditions were studied by stratified and potted pot experiment. The results showed that the growth of rape was severely affected by upper and lower soil drought However, the rape cultivated on the soil which is wet with low boron content can obtain the water and boron needed for growth, so as to improve the nutrition status and increase the biomass of rapeseed.The soil rape utilization efficiency of rapeseed soil is enhanced, However, the effectiveness of boron components in soil on rapeseed also changed significantly