The winter pruning of pear trees can regulate the relationship between vegetative growth and results, and achieve high yields and stable production for consecutive years.

First, pruning time

It was carried out from the December to the next year after the deciduous pear trees.

Second, pruning method

Firstly, according to the pear's strong trunk, obvious apical dominance, strong sprouting ability, weak branching ability, and the growth characteristics of short fruiting branch results, it is necessary to grasp the size of the annual tree and the weak tree to be heavier; the young tree and the wangshu should be light. The principle of cutting or not cutting. Second, according to the size of the pear tree, the strength of the tree vigor and look at tree pruning, especially for different types of branches, should take different cuts.

1. Branches: Pruning of extensions on the main branches, sub-branches, or other branches should be based on short cuts. The amount of pruning should be appropriately increased, and the main branch angle should be opened by means of supports, pulls, and hangers.

2. Branches: It is the site of the result. The branches and branches of consecutive years should remain strong and weak and be updated in time. All branches that grow horizontally, obliquely and with moderate growth and full flower buds still allow natural growth, too many flower buds, and short and weak growth of new shoots. They should be cut short and cut too densely or too weakly. Weak, should retreat more heavily.

3. Raising branches: For places where there is space utilization in the interior of the tree canopy, especially in the gaps between the backbone branches at all levels, the remaining branches should be kept as much as possible, and the methods should be adopted first. , The second year flower buds are short) or the result is retracted. Such as the impact of the growth of the backbone, can be used to increase the angle, to stay oblique, to stay strong and weak, slow-release results approach.

4. fruit Taiwan, short fruit branches: pear fruit tree often draw 1 to 3 secondary shoots, pruning can be sparse one to stay, or short one to stay, both the results, there are preparation branches, the short fruit branch Pruning can be based on the whole tree burden, to determine the short fruit branch retention, sparse excess short fruit branches, when the tree vigor is weak, pay attention to sparse weak branches and weak shoots. In addition, the leaves of the leaves should stay strong and weak, and remove pests and branches, dry branches and dense branches and so on.

Third, the management after pruning

1. Qingyuan disinfection, prevention and control of various overwintering pests and diseases. After pruning, spray 1 to 2 times 3 °C ~ 5 °C lime sulfur mixture, and use its sediment brush white pear trunk. At the same time, the scratched skin, deciduous dead branches, and diseased and destroyed fruits were burned and buried deep.

2. During the winter season, the orchard covers the ground film (or weeds, straw, etc.), or smoke and other cold and frost.

3. After spring, early application of spring fertilizer and irrigation, improve the quality of flowering.

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