香蕉属热带、亚热带果树,产量、营养价值皆高,也是广西主要果树之一,但在我国有关香蕉的营养施肥研究较少,其施肥技术理论还停留在以农家肥为主体的经验性水平上。目前我国蕉区化肥用量迅猛增加,已占据主要地位,化肥施用上具有很大的盲目性,因此迫切需要解决一个合适施用量及NPK 三要素最适配比问题,尤其是三要素配比,它显著地制约着香蕉的产量、品质及 Banana is a tropical and subtropical fruit tree, with high yield and nutritional value. It is also one of the major fruit trees in Guangxi. However, few studies have been conducted on banana nutrition and fertilization in China. The theory of fertilization technology remains at the empirical level with farmyard manure as the main body . At present, the dosage of fertilizers in banana area in our country increases rapidly and occupies a major position. Because of the great blindness in the application of fertilizers, there is an urgent need to solve the problem of a suitable application rate and NPK three factors, especially the ratio of three elements Significantly constrained the production of bananas, quality and