土壤养分含量是衡量土壤肥沃程度和对果树供肥能力的一个量化指标,某种养分过多或过少均会给果树的生长发育造成不良影响。只有当各种养分比例协调、含量丰富、供应平稳时,果树才能正常生长发育,达到高产优质的目的。80年代以来,果树经济效益较高,果农盲目施肥现象严重,果园土壤养分也发生较大变化,给科学施肥造成一定难度。现根据我所自1991 Soil nutrient content is a measure of soil fertility and fertilizer supply capacity of the fruit of a quantitative indicator of a nutrient too much or too little will have a detrimental effect on the growth and development of fruit trees. Only when the proportion of various nutrients are coordinated, rich in content and stable in supply, can the fruit trees grow and develop normally, achieving the purpose of high yield and good quality. Since 1980s, the economic benefits of fruit trees are high, the phenomenon of blind fertilization by fruit growers is serious, and the soil nutrient in the orchard also changes greatly, which makes it difficult for scientific fertilization. Now according to my since 1991