The main purpose of apple tree pruning in autumn is to reduce local consumption, promote overall accumulation and improve ventilation and light transmission conditions, so as to improve fruit quality. It is found that some fruit farmers have some problems that can't be ignored in autumn shearing. The summary is as follows, and suggestions for improvement are put forward.

(1) Time is not allowed, which backfires.

Pruning too early in autumn will easily lead to flourishing leaves; Pruning too late in autumn will not only obviously slow down the growth momentum, but also affect the light and waste nutrition.

Suggestions for improvement: according to local conditions, the retraction time of coring is generally 30 ~ 40 days after autumn shoots stop growing and before defoliation. Branches can be thinned from summer to autumn. As long as they germinate in that year, they can germinate and prune at any time. There is no time limit, but the pruning for more than one year depends on the situation. It is better to wear a hat 25 days after the autumn shoots are issued. Opening branches in autumn is the main measure to improve tree permeability and tree potential, which should be carried out after the autumn shoots basically stop growing, with the branches of the current year as the main measure.

(2) Too many hats and messy branches.

Mainly manifested in: as long as it is autumn shears, no matter what varieties and branches, they are capped at the junction of spring and autumn shoots or at the junction of annual and biennial branches. In this way, the whole tree is surrounded by new buds and grows vigorously, and it is easy to form a "lion head", which not only does not slow down the growth momentum, but causes vigorous growth.

Suggestions for improvement: in the middle and late August, the new shoots on the auxiliary branches of Red Fuji, Jinguan and other varieties should be capped at the blind junction of spring shoots and autumn shoots, or at the junction of one or two years; Marshal is an apple, so it is not appropriate to wear a hat. In the specific operation, we should grasp the following methods: all branches of strong and strong auxiliary branches and large lateral branches are capped, and some branches of weak long branches and medium branches are capped. In addition, trunk branches and extension heads at all levels are generally not suitable for wearing hats for pruning.

(3) The density of branches is too light, and the light path is blocked.

The main manifestations are as follows: when thinning branches in autumn, only the clustered branches in the inner chamber and the sprouting branches in the big shears are thinned, and other branches are not thinned, resulting in poor crown closure, which is not conducive to later flowering and fruit coloring.

Suggestions for improvement: In mid-September, the ineffective branches, overlapping branches, cross branches, long branches and competitive branches in the inner room should be thinned and retracted, and the branches in the inner room and the branches in the current year should be mainly cleaned, and the pruning amount should not be too large. However, 20 days before the harvest of 15 ~ fruit, the branches that are too dense on the upper part of the tree, the skirt branches that mop the floor and the peripheral clustered branches should be shrunk or thinned as appropriate. At this stage, the diameter of thinning and retracting scissors should not exceed 3 cm.