近几年来，果园施用氮肥越来越多，由于长期单一施氮肥，使土壤中的氮磷比例失调，土壤板结，理化性质被破坏，氮肥增产效果一直下降，造成适龄果树不能结果，缩短盛果期，大小年严重，品质差。因此在果园适量施用磷肥是很有必要的。 　　1磷肥对果树营养的作用 　　磷肥是果 In recent years, the application of nitrogen fertilizer in orchards is more and more. Due to the long-term single application of nitrogen fertilizer, the proportion of nitrogen and phosphorus in the soil is imbalanced, soil compaction, physical and chemical properties are destroyed, the effect of nitrogen fertilizer increase has been declining, Period, the size of serious, poor quality. Therefore, proper application of phosphate fertilizer in the orchard is necessary. A phosphate fertilizer on the role of fruit nutrition Phosphate fertilizer is fruit