Appropriate thinning of branches is required to develop a basically balanced seedling crown. Appropriate thinning of branches is mainly used in shaping. Thin out the upright branches that grow too vigorously from the seedling trunks, as well as the opposite branch whorls and overly dense cross branches, so as not to destroy the normal crown shape and trunk shape. It is also necessary to thin out branches with weak growth and diseases and insect pests inside the seedling crown.
The main purpose of the renovation is to suppress the strong and help the weak. For strong lateral branches with two sides, the vigorously growing branches and upright branches can be appropriately thinned out in winter, the opening angle of the lateral branches can be increased, and the branches at the back can be used to replace the heads. When cutting short, the weak buds or branches should be left in the cut. Reduce the growth of overly strong large side branches. For the side branches on the side with weak growth, the growth should be promoted, dying and dead branches should be thinned out, the opening angle of the side branches should be reduced, the heads should be replaced with upright branches, and moderate short cuts should be taken, leaving full buds at the cutting edge to promote the growth of North America. The growth of red maple shoots.
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