The terminal bud of the trunk is obvious, positive and negative, and sensitive to pruning. Try to cut it lightly during plastic surgery, not too much to prevent yellow leaf disease. Pear has weak branching ability, few branches and small opening angle, so there are few long branches on the main branch and the relative density of branches is small.
Because the advantages of the tree-making machine are super strength, little development, small opening angle, and great differences in growth and development camps between branches, the extension branches of the core trunk and the main branch often grow too strong, rise and widen too fast, which is easy to produce trunk connection, strong on the top and weak on the bottom, and the main branch is easy to be unbalanced, so if we do not pay attention to shaping branches, even idealized branches can not be produced; It is very easy to be prosperous before and weak after, dense before and empty after. When cutting and repairing, it is necessary to monitor that the central stalk rises too fast to slow down the rise and strengthen control.
The opening angle of the main branch can generally be above 50. For Japanese pear and other tree species with few branches, the opening angle of the main branch should not be lower than 60 or higher to promote branching, otherwise it is easy to derail the main branch, only more short-bearing branches and short-bearing branches appear, and the side branches are few and weak. This kind of tree has low yield and is easy to age.
After apricot tree shaping makes the bottom corner open, pay attention to the opening of the sharp corner every year. If the tip is upturned, it is easy to be strong before and weak after, and the inner cavity is exposed and accelerated. In order to better promote multi-branches, we should cut off 1 ~ 2 weak buds before the round buds, so that more long branches can appear, and the upward trend is symmetrical, and the short branches on the back are also relatively strong.
Pear branches are weak, so long branches should be used as much as possible to expand the amount of early branches and win early harvest. In particular, some Japanese pears and Yali pears with few branches should be thinned and strong branches should be used as much as possible to make them become effective branches according to the direction, position and upward trend. If it is flourishing, it can bear fruit for a long time, and after the fruit, it can loosen yang and strengthen yang, and then shrink it.
Or pull hard to make the flat slope develop and grow. The leafy branches on the main branches can be picked and twisted according to the situation in summer and used. In short, do more branches, do less branches and use more. Pay attention to shaping the middle and rear branches of the main branch as soon as possible, and shape more large and medium-sized branches on the anticline side, control the widening speed of the main branch, and avoid the depression of the lower branch after fruiting. Long branches that have been saved are put into long play to convert the results.
The above is my detailed introduction. I hope it will be helpful to everyone after reading it. If you have other comments, you can discuss them together in the message area below.