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多干银杏指同一株树有两个或两个以上主干，各主干间胸径差异不大。为充分利用主干，可保留胸径较大的主干２～３个，结合培养疏层形树形，采用分层嫁接法，可快速成形，提早结果，达到果材兼收的目的。嫁接时期以“清明”前１５天至节后１０天为宜，方法为插皮接。各主于上无
Multiple ginkgo refers to the same tree has two or more trunk, trunk diameter difference between the little. In order to make full use of the trunk, 2 to 3 trunk diameters with larger diameters can be reserved. By combining the sparse layer tree with the hierarchical grafting method, rapid prototyping and early result can be achieved. Grafting period of “clear and bright” before 15 days to 10 days after the festival is appropriate, the method for inserting cutaneous access. Each on the main no