一、施肥山楂树虽较耐瘠薄,但仍是喜肥树种。有人试验山楂树的需肥量略低于苹果树。在通常的土壤条件下,对氮、磷、钾的需求量比例大体为2:1:1。幼龄树每株每年可施纯氮0.05公斤,磷、钾0.02—0.025公斤。随着树龄增大,结果量增多,施肥量可增加1—2倍。大量结果后,每株施肥量也可按每100公斤果施纯氮3—4公斤,磷、钾各1.5—2公斤。生产中施 First, fertilization hawthorn Although resistant to infertility, but still a hi fat tree species. Some people test the hawthorn need fertilizer slightly lower than the apple tree. Under normal soil conditions, the demand for nitrogen, phosphorus and potassium is roughly 2: 1: 1. Young trees can be applied per year 0.05 kg of pure nitrogen, phosphorus, potassium 0.02-0.025 kg. As the tree age increases, the amount of results increases, fertilization can increase 1-2 times. After a large number of results, the amount of fertilizer per plant can also apply pure nitrogen per 100 kg of fruit 3-4 kg, phosphorus and potassium 1.5-2 kg each. Production facilities