果实含糖量高低,对果品质量好坏有着重大的作用。实践证明,施用不同种类的肥料,与果实糖度密切相关。一般说,氮肥施用量多的果树,果色浅、味淡、含糖量低。反之,在施用定量氮肥的基础上,增施磷钾肥的果树,果色鲜、味浓,含糖量高,硬度大。这是因为磷能促进植物体内碳水化合物运 The level of sugar content of fruit, the quality of the fruit has a significant role. Practice has proved that the application of different types of fertilizers, closely linked with the fruit sugar content. In general, the application of nitrogen fertilizer more fruit trees, light color, light taste, low sugar content. On the contrary, the application of quantitative nitrogen fertilizer, based on the application of phosphorus and potassium fruit trees, fruit color fresh, rich flavor, high sugar content, hardness. This is because phosphorus can promote carbohydrate transport in plants