Fruit tree shaping and trimming method

Abstract

The present invention discloses a form pruning method of fruit tree. Said method includes the following steps: (1), in first year, selecting and setting first layer of 46-6 main branches which are not overlapped for central trunk, making included angle between main branch and central trunk be greater than 90 deg.; (2), in second year, defining 3-5 layers of main branches over first layer of main branches, every layer has 1-3 mutually non-overlapped main branches, the upper layer of main branches and the lower layer of main branches are not overlapped mutually, making all the included angles between main branches and central trunk be greatly than 90 deg.; and (3), in third year-fifth year, pruning to make the tree height be controlled within 3 meters, setting 4-6 layers of 7-21 main branches, making every included angle between every main branch and central trunk be greater than 90 deg.

Description

technical field [0001] The invention relates to a method for shaping and pruning fruit trees. Background technique [0002] Fruit tree pruning is mainly to cultivate a solid crown skeleton, build a reasonable individual and group structure, coordinate the aboveground and underground parts of the fruit tree, the harmonious coexistence of branches and branches in the tree, the balance and harmony of vegetative growth and reproductive growth, and the aging and renewal of branch groups. relationship, thereby helping fruit trees to achieve the goals of premature birth, high yield, stable yield, high quality, longevity and ease of management. Improper pruning or pruning errors, tree shape not suitable for the growth and fruiting habits of fruit trees, poor tree structure, poor ventilation and light transmission of the canopy, etc., are important reasons for the low yield of fruit trees. A good tree structure is the basis for high yield of fruit trees. At present, the pruning tech...

AI Technical Summary

Problems solved by technology

At present, the pruning technology of fruit trees is very cumbersome and inconvenient for operation and management, especially for apricot, jujube, persimmon, walnut, cherry, chestnut and other tree species. The external growth of branches is vigorous, the orchard is severely closed, the fruit is late, the quality is poor, the pests and diseases are serious, the economic benefit is not good, and it is not suitable for close planting cultivation

The commonly used tree shapes for pruning include the evacuated and layered shape of the three main branches at the base, the small skeleton tree shape, and the spindle tree shape introduced from abroad in the 1980s. After years of application and practice, it has been proved that these tree shapes are not suitable for the arborization of Chinese fruit trees. Cultivated, the tree body grows vigorously, and the problem of growing stronger is serious. Therefore, there have been thinning of canopy orchards in Shandong Province, large-scale transformation of fruit trees in Shaanxi Province, research and development of apple trunk tree shape and apple pine cone tree in Shanxi Province and Henan Province. However, these new tree shapes do not solve the problem of tree strength. These tree shapes are 5000-6000 jin per mu in a big year, 2000-3000 jin in a small year, and an average of 3500-4500 jin per year, and the fruit size is uneven, Poor coloring, low sugar content, serious pests and diseases; and the tree grows vigorously, the canopy is tall, the orchard is seriously closed, it is not convenient for production management, the result is late, and the benefit is poor