Summer pruning, also known as pruning in the growing season, is one of the important parts of the annual pruning of apple trees. It occupies an important position in the annual pruning of fruit trees. Its main methods of pruning include circumcision, girdling, twisting, picking, pulling, and thinning. Branches and autumn hats. However, if it is improperly trimmed, it will cause adverse effects on fruit trees. Therefore, the summer pruning must grasp the following five principles:
First, the object should be clear: the main object of the summer apple tree pruning is to let grow the tree, juvenile tree, age-inefficient tree, flowering difficult results of the tree and too weak tree generally do not carry out summer pruning.
Second, the time should be appropriate: Apple trees to be pruned in summer to grasp the timing. The missed opportunity not only fails to achieve good results, but sometimes results in the opposite. General ring cutting, girdling works best from late May to early June. It is advisable to pick up the heart and twist the tip from late May to early July. Branching and thinning are better during the period between the beginning of autumn and the period of Bailu. It is better to wear a cap and cut it in mid-August.
Apple tree summer pruning should pay attention to what issues
Third, the amount of pruning should be appropriate: As the apple tree pruning in the summer to hurt or cut off some branches and leaves, will reduce the photosynthetic area, the weakening effect on the growth potential of fruit trees. Therefore, the amount of pruning should be lighter, and light shearing should be carried out under the premise of improving ventilation and light transmission, so as not to stimulate prosperous growth or not to weaken the tree vigor, so as to avoid adverse effects on the growth and results of the tree.
Fourth, to promote flower bud differentiation, improve fruit quality for the ultimate goal: attention to improve the crown microclimate, to ensure good ventilation and light conditions, after cutting branches dense and moderate, uniform and reasonable arrangement, light can be transmitted to the internal malleolus and lower layers, to achieve Do not cover, not to cover the extent of outside, in order to achieve the promotion of flower bud differentiation, avoid the "year of size" and improve the quality of fruit.
Apple Tree Summer Trim
Fifth, to adapt the tree to local conditions: According to the age of the apple tree, tree vigor, species characteristics, natural conditions, trim purposes, etc., determine the appropriate pruning methods and pruning, or promote flower growth, or promote growth, or improve fruit quality, Ultimately achieve the purpose of high quality, high yield, stable production, and strong trees.
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