不同施肥方式对香蕉生长和产量的影响

Effects of Different Fertilization Methods on Banana Growth and Yield

在香蕉施用适量氮磷钾施肥条件下探讨不同施肥方式对香蕉生长的影响。结果表明:全生长期撒施和前期撒施香蕉营养生长期与孕蕾期长势较好,前期水肥抽蕾期香蕉长高增粗,但抽蕾延缓。前期水肥,中、后期沟施或穴施施肥方式能提高果梳重和果指数,改善香蕉果实品质,提高果实风味,增产效果好,然而,由于该方式施肥人工费用较高,利润有所下降。香蕉中后期开沟或穴施肥容易伤根,香蕉感染枯萎病风险相对较大。

The effects of different fertilization methods on banana growth and yield were studied under optimal rates of nitrogen(N),phosphorus(P)and potassium(K)fertilizers.The results showed that banana grew well when broadcast was applied either for the whole growing season or from vegetative to bud development stages.The banana grew taller and thicker but floral buds delayed emergence when fertilizers and irrigation applied together during prophase.When fertilizers and irrigation applied together during prophase and furrowing or digging-hole applications were used during metaphase and anaphase of banana,fruit comb weight and fingers per plant were increased,fruit quality was improved,taste flavor was improved,and the yield was increased except the extra input of labor and lowered profit.Further,furrowing or digging-holes applications during metaphase and anaphase could impose higher risk of the wilt disease on banana.