杂交饲用甘蔗闽牧42施肥技术效应

Effects of hybrid forage sugarcane - Minmu 42 on fertilization

探讨了闽牧 4 2在不同施肥种类的表现及同一施肥种类不同施氮量对该品种的效应。结果表明 :闽牧 4 2的需肥特性要求配施适量的氮、磷、钾肥可达到高产优质及最佳经济效益 ,粗蛋白产量比单施氮肥增加 32 .1% ;不同施氮量在不同时期略有区别 ,一年 4次追肥掌握“轻、重、重、轻”的原则 。

Different fertilizers applied and different application leve l of nitro gen were studied. The results showed that application of combination of nitrogen , phosphorus and potassium appeared high yield, good quality and economic benefi t. Compared to nitrogen application alone, the crude protein content increased b y 32.1%. The effects of nitrogen application performed a little difference in ev ery growing stage. The additional fertilizing principle, less-more-more-less volume fertilizer application during a growing season could bring into play the best economic effects.