香蕉的矿质营养特性及其施肥

Mineral Nutrition Characteristics and Fertilization of Banana

综述了20世纪60～90年代国内外关于香蕉营养吸收规律和主要矿质营养生理的研究成果。提出了适宜的施肥时期、NPK三要素比例和肥料施用量,即:香蕉不同阶段不同品种的氮磷钾营养吸收特性一致,吸收量大小顺序为钾>氮>磷;香蕉施肥应以营养生长初期为主(定植后1～5个月),占总施肥量的75%～85%;具体的三要素质量配比和施肥量应根据当地的实际情况来确定。

The nutrition and fertilization of banana have been s tu died widely.Here we review the basic theories of banana mineral nutrition and the law of nutrient absorption.The optimum fertilizer applying time,the ratio s of NPK and the amounts of fertilizers are discussed and proposed.In different growth stages of different banana varieties,the NPK nutrition character is a lmost same,and the amounts of absorption are K>N>P.The fertilization of bana na should be made in the early growth stage(1-5Month)accounting for75%- 85%of the total in a year.The specific NPK ratios and fertilizer application amounts are varied widely,which should be determined according to the local co nditions and the cultivars.