平衡施肥对油研七号经济性状及产量的影响

Effects of Balance Applying Fertilizer on Economical Characters and Yield of Youyan 7

试验结果表明:平衡施肥技术可以显著增加油研七号油菜的有效分枝数和单株有效角,从而达到显著增产增收。氮磷钾肥平衡施用的产量最高为270 kg/667m2,分别比空白对照、只施磷钾肥、施氮钾肥、施氮磷肥增产206.8%、184.2%、26.8%和13.4%,施氮的各处理均可获得较高的产量和收益,并获取了有关相对产量、土壤养分供应量及施肥利用率等平衡施肥技术参数。

The results show that the balance applying fertilizer technique can significantly increase yield of Youyan 7 (because) of the increase of effective branch number and effective pod per plant. The yield with the balance applying fertilizer technique is up to (4050) kg/ha, 206.8%, 184.2%, 26.8% and 13.4% higher than non applying fertilizer,applying P and K, applying N and K and (applying) N and P respectively. The treatments with applying N fertilizer can get the higher yield and economical benefit. The (technical parameters) including the relative yield, soil nutrient supply amount and fertilizer utilization rate are obtained at the same time.