The main objective of autumn fruit cutting is to reduce local consumption, promote overall accumulation, improve ventilation and light transmission conditions, so as to achieve the purpose of improving fruit quality. In production, it is found that some fruit growers have problems that cannot be ignored in the autumn crop. The following are categorized as follows and suggestions for improvement are proposed.
1. Time is not allowed and things go against expectations. Premature trimming in autumn can easily lead to prosperous branches; in late autumn trimming, the effect of slowing growth momentum is not obvious, and it also affects light and waste of nutrients.
Suggestions for Improvement: According to local conditions, the general topping and retraction time will be carried out after the autumn shoots are stopped and 30 to 40 days before the fall. The branches may be continued from the summer to the autumn, as long as they are germinating branches at any time, ready to germinate at any time. In addition, not subject to time constraints, but the elimination of branches older than one year will depend on the circumstances; while wearing a cap will have to be performed 25 days after the autumn tip is issued; autumn branch opening angle is to improve the permeability of the tree The main measures for tree and tree vigor should be carried out after the basic stoppage of autumn shoots.
2. Too many hats, disordered shoots. The main performance is: as long as the autumn cut, no matter what kind of species, what kind of shoots, all at the junction of the spring and autumn shoots or one or two years at the junction of branches to wear hats, the results of the new shoots outside the whole tree growth prosperous, easy to form The "lion's head" not only fails to slow down the growth momentum, but also leads to prosperous growth.
Suggestions for Improvement: In late August, the new shoots on the auxiliary branches of Fuji, Golden Crown, etc., will wear hats and scissors at the blind spot at the junction of spring and autumn, and they may also be able to postpone the perennial One-year-old couple at the junction wearing a hat trim; Marshal is not suitable for wearing a cap apple. In the specific operation, the following methods should be grasped: All the branches and heads of the branches with strong auxiliaries are to be treated with caps, and dead caps are used for some of the weaker branches with long branches and golden branches. In addition, all types of bone branches and extension heads generally should not be worn with a cap method.
3. The branches are too light and the light path is blocked. The main performance is: in the autumn, when the branches are dredged in the autumn, they are only removed from the branches of the inner limbs of the internal warblers and the sprouting branches at the big sawn cuts, and the other branches are not treated with thinning and retracting methods, resulting in poor canopy closure. Unfavorable flowering and late fruit coloring.
Suggestions for Improvement: Around mid-September, the ineffective branches, overlapping branches, cross branches, leggy branches, and competitive branches of internal hemorrhoids should be removed and retracted. The focus should be on cleaning up internal litchi and annual branches. The amount of pruning should not be too great. On the 15th to 20th days before fruit harvest, the dense branches, mop skirts and periphygetate branches in the upper part of the tree must be retracted or removed with leaves according to the situation. The diameter of the trimming and retracting cuts should not exceed 3 cm.
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