1, winter pruning.

Generally, from 1 1 to February of the following year, 12- 1 is the best pruning period for pear trees. Because the leaves of pear trees began to fall off in June 5438+065438+ 10, the photosynthetic products of leaves were transported from leaves to annual branches → biennial branches → perennial branches → main branches → trunk → root system.

In spring, it is transported upward through the root system, from trunk and main branch to annual branch. During the period of 12~ 1, less photosynthetic products were stored in the branches, and pruning in winter made the trees slightly weak. However, if the tree is too strong, it needs to reduce the pressure on the tree and prune it later.

2, spring pruning.

Spring pruning refers to pruning in March-April, which is also called pruning before pear blossoms. It is mainly to cut off flowering branches or big branches that do not bear fruit, because leaf buds and flower buds can be distinguished at this time, and pruning according to the number of flower buds is also a supplement to pruning in winter.

3. Prune in summer.

It usually takes place from May to July. Because this is the key period of physiological differentiation of flower buds in most pear varieties, proper pruning is conducive to promoting the formation of flower buds.

4. Prune in autumn.

It was carried out from September to 65438+ 10, mainly to improve the light condition of pear orchard, remove the erect new shoots and improve the fruit quality.

Pear fruit planted for many years:

Pear trees take about five years to bear fruit after planting, but some varieties will bear fruit in the fourth year. When planting, deep soil with good drainage and plenty of sunshine should be used to grow better.