Branches at all levels of the apple tree are often not opened due to angles or open angles. This results in unbalanced branching, irregular tree structure, disordered branches, poor ventilation and light transmission, and strong nutrient growth, resulting in inefficient tree growth. The outgrowth of the mature tree results in an increase in fruit quality and yield. Timely "strong pull" is an effective technical measure to solve this problem.
First, the role of pull branches Apple tree branches help to expand the crown, accelerate the formation, improve ventilation and light conditions, regulate nutrient and endogenous hormone types, transport and distribution, adjust the tree vigor, promote flowering, make full use of space, to achieve three-dimensional result.
Second, pull the branch angle according to the characteristics of the species and the target tree shape requirements.
3. During the period of pulling branches, the branches should be carried out during the growth period. The best period is: more than 3 years, large branches and strong perennial branches and auxiliary branches should be carried out from flowering to mid-to-late May (long-term during the spring period). The perennial branch of the 1-2 year old stem branch and the end result should be carried out in mid-August and the end of the autumn.
Fourth, pull the stick method to take "a push two kneading three pressure four positioning" method. That is, "a push" refers to pushing the branches upward repeatedly; "two kneading" is to knead the branches up and down repeatedly; "three pressures" is based on the kneading and softening of the branches gradually to the desired angle; Positioning" is to use plastic ties, pull branches or thin wire to fix the branches.
Fifth, pay attention to pull the first one is not drawn into a bow back shape, so it is easy to take the article; second is to pull the sticks and carved buds combined; third is to pull the branches can not pull the main branch, pull the main branch after pulling also pull Lateral branches, and generally ensure that the main branch angle is greater than 90 degrees, the lateral branch angle is greater than the main branch angle.
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