A Y-shaped weeping willow-shaped apple tree and its pruning method

Abstract

The invention discloses a Y-shaped weeping willow-shaped apple tree and a pruning method thereof. The tree comprises a main trunk and two central leading trunks on the main trunk, the two central leading trunks face line space, the included angle between the central leading trunks is 25-35 degrees, and the main trunk and the two central leading trunks form a Y shape; 20-30 main branches are grown on each central leading trunk, the angle of each main branch is 120-130 degrees in average, and the interval of each two main branches in different heights is at least 25cm; fruit bearing branches are directly grown on the main branches, and the fruit bearing branches are in drooping state and similar to weeping willow under the action of gravity after fruit bearing. The Y-shaped weeping willow-shaped tree can bear fruits 2-3 years earlier than fine spindle-shaped trees and high spindle-shaped trees, the yield is increased by 10%-20%, and labor force of an orchard is reduced by about 40%. According to the Y-shaped weeping willow-shaped apple tree and the pruning method thereof, the tree shape is a novel shape that is suitable for dwarfing stock close planting apple orchards, and cultivation of national apple dwarfing stock and wide-row close planting is facilitated.

Description

technical field [0001] The invention belongs to the technical field of apple tree shaping and pruning, and relates to a Y-shaped weeping willow-shaped apple tree shape and a pruning method thereof. Background technique [0002] The development direction of fruit tree pruning in the world is to change the crown from high to short, change the skeleton from more to less, and change the technology from complex to simple. The most commonly used tree shapes in densely planted apple orchards with short stock in my country are slender spindle and tall spindle. [0003] The dense planting of short stock is the trend and direction of the world's apple development, and it is one of the important symbols of the development of the world's modern apple industry. Except for China, the new orchards in the world's major apple producing countries are basically planted with short stock and dense planting. In many countries, short stock orchards have accounted for more than 90% of the total ar...

AI Technical Summary

Problems solved by technology

Japanese research reports that the labor in orchards with a tree height below 2.5m is 40% less than that in orchards with a tree height of 3.5-4.5m, and the labor intensity is significantly reduced, because people stand on ladders for pruning, flower thinning, fruit thinning, and bagging. strength, not too safe

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