脐橙幼树摘心留叶数须适量郭承富（江西省大余县红壤开发办公室３４１５００）脐橙树要形成充实丰满的圆头树形，其关键技术之一是幼树摘心，特别是在夏梢刚自剪（大暑前后）的摘心，留叶不宜过多，但须适量，保证每个基枝上留叶５～７片，摘去顶梢，既有一定数量的新生叶... Navel orange tree topping to leave the leaves to be appropriate Guo Chengfu (Jiangxi Dayu County Red Soil Development Office 341500) navel orange tree to form a full plump round tree, one of the key technologies is the young tree topping, especially in the summer just fresh from Cut (before and after the summer heat) topping, leaving leaves should not be too much, but to be appropriate, to ensure that each leaves on the leaves 5 to 7, pick top, both a certain number of new leaves ...