Loquat is an evergreen fruit tree. It germinates 3-4 times a year, blooms in autumn and winter, and is harvested in late spring and early summer, so young trees can be cut down before the next new shoot stops growing, especially in late spring and late summer. After flowering and fruiting, adult trees are usually pruned immediately after harvest and still survive until the end of summer. There are too many fruits in spring, the branches don't sprout, and the fruits hang on the trees, so you can't prune too much.
Summer pruning after harvest is the most important pruning, so pruning should be done sooner or later. In addition, in order to sprout a large number of new branches after harvest through pruning, it is necessary to re-fertilize. Late summer is the most important renovation in a year. Tree formation should start as early as possible and form buds. Therefore, it is necessary to trim in advance and trim appropriately.
Pruning techniques include dense branch germination, pruning or short branch pruning, fruiting branch pruning, long branch pruning and so on. The specific requirements are as follows: sparse pruning, a branch of sparse density. Eucalyptus usually germinates 3 ~ 5 lateral branches, leaving only 1 ~ 2 strong lateral branches, and other branches and weak branches are sparse. Interrupt cross branch. If two branches cross and hinder growth, cut off one.
The parallel branch was truncated or deleted. There are more than two 3-4-year-old eggplant pure trees with high local density, so one of them should be shortened or deleted. Cut off long branches. The long branches of the big branches should be broken from the roots. If you don't disturb the shape of the tree, you can cut it short and let it sprout on the basis to cultivate fruitful seedlings.
For two-layer results, the distance between the two layers is about 50-80 cm. The height of the box is 40-60 cm. After planting seedlings in the first year, there are 4-5 main branches left, which extend to 4 sides and form an angle of 40-50 degrees with the main branches. In the second year, the main branch was selected from the main branch for many times at an appropriate position, and the trunk was cut off to form a hollow double round head shape, so that the eucalyptus did not grow.
Generally speaking, a tree has 3-4 layers. From bottom to top, the number of main branches in each layer is 3-2 or 3-2-2- 1, and there are 6-7 main branches. There are 4-3 or 4-3- 1, and the main quarter is 7-8. If the height of the trunk is 30 ~ 60 cm, please choose the first floor. The spacing between the first floor and the second floor must be 1.0 ~ 1.2 m, the floor spacing must be 0.8 ~ 1.0 m, and the main dormitory of the main dormitory must be arranged according to 3 ~ 4. Compared with the lower level, the number of main dormitories on the upper level is gradually decreasing. In national quarters, the interval between national quarters is gradually shortened. In order to avoid ghosting, the main branches of each layer should also be staggered.