The shaping and pruning method of growing grapefruit

Pomelo tree through shaping and pruning, so that its crown shape is plump, and achieve the purpose of high and stable yield.

First, the height of the fixed trunk should be 40-60 cm, and a total of 5-6 main branches should be cultured. The biological characteristics of pomelo are different from those of other sweet oranges and red oranges. The trees are strong, tall and fruiting, and most or all of their fruiting mother branches are inside the crown. We must understand these characteristics in order to master the pruning technique.

Second, the tip of the fruiting branch is called the fruiting branch. As a result, the mother branch can be divided into three types:

1. A small lateral branch on a large lateral branch, which grows weakly and cannot protrude the vegetative branch of the crown. After it grows continuously for 2-3 years, it divides into leafless and fruiting mother branches.

2. Leafless branches, which are not nutritious enough to blossom and germinate, generally do not blossom and bear fruit until three years.

3. Fallen flowers and fruit branches (commonly known as blind branches), they have no sprouting buds, they blossom and bear fruit the following year.

Third, the fruiting branch is formed by the germination of several buds at or near the top of the fruiting mother branch. The fruiting branches include leaf fruiting branches, flowering and leafless fruiting branches and leafless fruiting branches. There are one to many flowers, and the fruiting branches of non-inflorescence and few-leaf inflorescences are the best.

Fourth, the purpose and significance of pruning make the inside of the crown well ventilated and transparent, the fruit-bearing mother branch in the inner hall is nutritious, the fruit is more and the quality is good.

Fifth, the pruning principle is that the outer space is not empty, with heavy cutting on the top, light cutting in the four directions, heavy cutting on the outside and light cutting on the inside.

6. pruning methods pay attention to preserving the weaker leafless branches on the inner side branches of the crown, which are excellent fruiting mother branches; those with vigorous vegetative growth and leaves that are too dense should be heavily pruned, and those with weak vegetative growth should be cut lightly.

7. After the pruning time and the branches that should be cut off, the upright and drooping branches in the crown should be cut off, and the dry and withered branches, disease and insect branches, shade branches and heavy cross branches should be cut off. 2. Summer shearing: wipe off some overdense and overgrown new shoots, cut too dense slender branches, cut short and grow excessively in summer.