Like most green plants, sunlight is essential for peach trees, and the rapid growth of peach trees is also a worrying half of the production and planting process. This paper briefly introduces the common trees in production. Trees and tree structure directly determine the light distribution in the crown, affect photosynthetic productivity, flower bud formation, flower bud quality and branch life, and then affect the yield and quality of fruits. At present, the common peach trees in production are natural type, stem type, double-branch type and single-sided type. So, what kind of tree should I choose? First, understand the characteristics of other trees.

Trees commonly used in old orchards, traditional fruit trees, are all planted with charcoal at the foot of the mountain. In order to maximize the use of the area and reduce the investment cost, naturally happy type is a good choice. There are three happy branches, four cup-shaped branches, and even some parks have five or six main branches. With the development of fruit industry, the mechanization of mountain orchard and the increase of labor cost, the traditional natural happiness type is no longer suitable for development. The outstanding shortcomings are slow effect, complicated molding and difficult mechanized operation. The height of the tree is about 2-2.5m, the crown width1.0-1.5m. There are 30-50 lateral branches evenly distributed on the stem, and the branching angle is 70-90 degrees. At the same time, within 50-60 cm from the ground, leave two branches in the northwest, southeast or row spacing direction that will not affect the operation, and about 65,438+0/3 branches will be born on them, which will help to adjust the vigorous and stable tree potential on the crown.

Many peach areas are still planted according to the traditional happy shaping method. Due to the plane structure of "three-legged fork 12 head", the whole tree has only a few parallel main branches, and the branches are crowded with each other, blocking each other's sunshine and easily losing light. Due to insufficient light, baldness may occur in some parts. On the contrary, the branches at the height of 1.2 ~ 1.5 meters above the plane are not empty, resulting in the waste of upper space. The real part of the peach is bald because of insufficient light, which leads to the outward migration of the peach part, and the ineffective area of the tree (there is space and no peach branches) is not easy to achieve the purpose of high-yield cultivation.

The planting density of peach trees in China ranges from 22 plants per mu (main row spacing of 56 meters) to 333 plants per mu (main row spacing 12 meters). Trees are also colorful, except the traditional three-wine-place natural happiness type, two-wine-place natural happiness type, small official and multi-wine-place cup type and dry type, and there are other magical trees, such as one-sided and Y-type. What kind of tree is good? Everyone has a different opinion. Some people are used to some trees and hold a negative attitude towards others. You know, as fruit farmers, we plant peach trees for yield and benefit, and trees are not important. If all the trees that can bear good fruit are good trees, there is no need to dwell on the question of "which tree is good and which tree is bad". The core is that trees must meet the planting density. The crown spacing after plastic surgery is about 1 m. "There are no invalid areas in the canopy, there are no invalid things on the trees, and there are no invalid leaves on the branches."