Method for forming high-lighting-effect tree-form straight body of peach tree

Abstract

The invention relates to a method for forming a high-lighting-effect tree-form straight body of a peach tree. The proper planting density of the tree form is 3-4*4-5, and the forming method comprises the following steps: (1) pruning in the first year: determining the stem instantly after planting, wherein the stem height is 30-50cmm, selecting and maintaining four robust new tree tops from the base part of a trunk to the upper part to be taken as a skeleton branch, reserving medium and short segments of plump buds of the skeleton branch in winter pruning, and adjusting the extending direction of the skeleton branch; (2) pruning in the second year: maintaining the advantage of the extended branch of the main branch in the growth period of the second year, controlling a competitive branch, and reserving medium (or light) and short segments of the plump buds of the skeleton branch in winter pruning; (3) pruning in the third year: managing the branch according to the manner the same as that of the second year in the growth period of the third year, paying attention to the control on the competitive branch, and maintaining a main branch dividing angle at 18+ / - 2.5 degrees. A tree body structure obtained by adopting the method of peach tree form and pruning shaping is simple, shaping is rapid, and fruiting is early; the tree crown is high, the branch grade is less; the tree crown structure is steady, ventilation and transmittance are good, productivity is high, fruit quality is good; the load capacity is large, and support by uprights is not needed.

Description

technical field [0001] The invention relates to a method for forming a fruit tree, in particular to a method for forming a peach tree with a high-light-efficiency tree shape with four uprights. Background technique [0002] Peach is a light-loving tree species, and the saplings grow a lot and take shape quickly. In order to adapt to the characteristics of peach trees, the natural happy shape of three main branches is mainly used in production. This tree shape is generally equipped with three main branches with an opening angle of 30-40 degrees, and each main branch is equipped with 2-3 side branches with an opening angle of 60-80 degrees. The tree-shaped backbone has a large number of branches and branches, which is suitable for the large growth of young trees. However, it is necessary to adjust the extension direction, angle and distance of the backbone branches during the shaping, and the forming technology is complicated; the tree-shaped backbone Opening at an angle, th...

AI Technical Summary

Problems solved by technology

The tree-shaped backbone has a large number of branches and branches, which is suitable for the large growth of young trees. However, it is necessary to adjust the extension direction, angle and distance of the backbone branches during the shaping, and the forming technology is complicated; the tree-shaped backbone Opening at an angle, the upper part of the back of the backbone branch is well illuminated, but the angle is large and the load capacity is poor. As a result, the opening angle of the backbone branch is larger, and all branches at all levels need to be supported by pillars. , easy to form planarization results, low yield

In recent years, the open shape of the two main branches has reduced the number of main branches, standardized the extension direction of the main branches, simplified the forming technology, and facilitated inter-row operations. Or frame support, large pruning of young trees, etc.