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防止苹果幼树抽条的几项措施1旺梢摘心在8月底9月初摘心,摘去生长点可促使枝条发育充实。2叶面喷肥8月至9月喷0.2%~0.3%磷酸二氢钾2~3次,促进枝条组织成熟(8月以后少用氮肥)。3防治大青叶蝉9月下旬~10月上旬,大青叶蝉上树产卵刺破幼树枝干表...
A few measures to prevent apple seedlings pumping 1 Wang Ting topping at the end of August early September topping, pick growth points can promote the growth of shoots enrichment. 2 foliar spray August to September 0.2% ~ 0.3% potassium dihydrogen phosphate 2 or 3 times to promote the branch tissue maturity (less nitrogen fertilizer after August). 3 prevention and treatment of leafhopper in late September to early October, leafhopper on the tree spawning pruning young branches table ...