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茶树以采叶生产为目的。采叶对氮消耗较大,施以氮肥对茶树生长和茶叶产量有特別重要的意义,因为茶园土普遍缺氮,施
Tea tree to leaf production for the purpose. The use of nitrogen fertilizer is particularly important for the growth of tea trees and yield of tea because of the nitrogen deficiency in tea garden soil