A kind of pear double u four dragon trunk planar tree shape and its shaping method

Abstract

The invention discloses a pear double U four dragon trunk planar tree shape, which includes a trunk, a main branch and a fruiting branch group, the tree height is 2-2.5m, the trunk height is 0.3m, and the main branches have two groups, and the main branches are U-shaped Two groups of main branches grow symmetrically on both sides of the main trunk, and the two groups of main branches grow and distribute in the shape of double U and four dragon trunks. As a result, the branch groups are spirally inserted on the main branches. The invention belongs to the technical field of fruit tree cultivation, and specifically provides a pear double-U-shaped four-dragon trunk planar tree shape and a shaping method thereof. The planar parallel growth potential of the double-U-shaped four-dragon stem branches of this kind of tree shape can promote the uniformity of the tree body Receiving light, the tree has strong ventilation and light transmission, and the distribution of light on the tree is consistent, which can reduce the difference in fruit quality caused by uneven light received by each fruiting branch due to differences in growth positions or uneven acceptance of foliar fertilizers and pesticides, and is more convenient for mechanized operations. The tree shape is beautiful, and it can be used for vertical greening such as walls and hedges. As a result, the row spacing of the tree shape can be more compact, and the land can be used more effectively.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and specifically refers to a pear double U four dragon trunk planar tree shape and a shaping method thereof. Background technique [0002] Pears are one of the most popular fruits for consumers at home and abroad. my country is the largest pear-producing country in the world. In 2018, the cultivated area of ​​pear trees in my country was 14.06 million mu, and the output was 16.2 million tons, ranking first in the world in terms of cultivated area and output. First place, respectively accounting for 68% of the world's pear cultivation area and production. With the wide application of new varieties, new technologies and new techniques in pear fruit production, the output of pome fruit in my country has increased significantly, the quality has improved significantly, and the export volume has increased year by year. With far-reaching development prospects, it has become an important pi...

AI Technical Summary

Problems solved by technology

Due to the tall crown and inconvenient operation, it has been rarely used in recent years

Small crown thin-layered and spindle-shaped are one of the tree shapes commonly used in pear tree production in recent years. When the branches of the two tree shapes are complex, it takes a lot of time and labor to pruning; the spindle shape includes natural spindle shape and improved spindle shape, etc. It is mostly used in northern pear orchards, and has many advantages such as fast forming, early fruit and high yield, and easy management. However, if it is not managed properly, it will cause the tree to be strong at the bottom and weak at the top. And obtain good economic benefits; happy shape includes three main branches happy shape and "Y" shape, etc., which are mostly used in southern pear orchards. It has the advantages of simple tree structure, good ventilation and light transmission, good fruit quality, and high commodity rate. The time is long, the time to enter the high-yield period is relatively late, the pruning level is high, the skeleton cultivation needs to be carefully operated, and the large canopy in the later stage is not conducive to field management, and the fruit yield is low; the scaffolding pear tree cultivation technology is introduced by Japan in recent years. High-quality and high-grade pear tree management technology, easy fruit management and convenient picking, but relatively high investment cost in the early stage and high technical difficulty, more suitable for sightseeing orchards or garden greening, not suitable for large-scale planting and production

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