In order to explore the effects of different fertilizer application levels on winter rapeseed, the variation regularities of winter rapeseed's growth, yield and nutrients accumulation in field under different application levels of nitrogen fertilizer, phosphorus fertilizer, kalium fertilizer and boron fertilizer were studied. The results showed that fertilizer application could promote the growth of winter rapeseed; with the increasing of fertilizer rate, the total accumulation amounts of nitrogen, phosphorus, kalium and boron in winter rapeseed increased in harvest period; meanwhile, the winter rapeseed's yield, nutrients accumulation amounts and increasing amplitude of fertilizer efficiency reduced.
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万方数据
维普
