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Branches scattering reconstruction method for lychee close canopy tree

A canopy closure and branch thinning technology, applied in application, cultivation, agriculture, etc., can solve the problems of excessive vegetative growth, no reproductive growth, weak reproductive growth, etc., to reduce the cost of fertilizer use, improve fertilizer utilization, reduce The effect of large branches

Inactive Publication Date: 2008-09-24
GUANGXI UNIV
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  • Summary
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AI Technical Summary

Problems solved by technology

The main problem of litchi canopy tree is exactly that the vegetative growth is too vigorous (large branches), and the reproductive growth is too weak (few fruits). If pruning by retraction method can only further promote vegetative growth, and adopt heavy retraction, the reproductive growth will also be complete. stop, no output

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] The experiment was carried out in September 2006 at the Forestry Research Institute of Yulin City. The test materials were planted in 1992, with a plant-to-row spacing of 4×6 meters (28 trees per mu), and 3 treatments were set up:

[0021] (1) Thinning treatment: remove the upright large branches, open the tree body angle (the angle of the large branches is all above 60 degrees), drop the head so that the height of the tree is about 3m, and leave 6 large branches in the whole tree;

[0022] (2) Re-retraction: cut down the canopy that has been closed, and re-retract to the first-level main branch;

[0023] (3) No pruning as a control.

[0024] The experimental Heli trees were all single-plant plots, repeated 5 times, that is, 5 trees were used for each treatment, and a total of 15 trees were used. The survey results when the fruit was harvested in July 2007 showed that the average yield per plant of the thinning treatment was 22 kilograms, which was equivalent to 616 ki...

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PUM

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Abstract

A method for lighting of trees and remodeling a lichee complete stand is characterized in that the height of a tree body is controlled within 3m to 4m, the quantity of big branches of the whole tree is controlled within 6 to 8, the angle of the big branches is kept within 60 to 90 degrees, the inner chamber is ventilative and non-light tight, and the tress of the inner chamber can fruit normally. The method of the invention has the outstanding advantages that the ventilative and non-light tight condition of the tree body is improved, so that the inner chamber fruits, thereby increasing the output muitiply. In addition, because the tree is high, reducing the big branches can obviously reduce the spray value, the utilization rate of fertilizer is improved, the harvest is easy, and the condition that the person is hurt for picking up the fruits cannot happen again.

Description

technical field [0001] The invention belongs to a method for transforming litchi canopy trees by thinning branches. Background technique [0002] Fruit tree pruning is an important link in the cultivation and management of fruit trees. Its purpose is to maintain good ventilation and light transmission conditions for fruit trees, coordinate the relative balance between vegetative growth and reproductive growth, and make fruit trees three-dimensional. However, at present, the mature litchi trees in my country have many large branches, most of which are more than 10; the trees are tall, mostly more than 5m; the branches grow upright, and the canopy and orchard are all closed. Due to the poor ventilation and light transmission conditions in the inner chamber, the inner chamber branches become shaded branches and cannot bear fruit, and are cut off manually, resulting in bare inner chambers, and the fruiting is limited to the periphery of the crown, showing flat fruiting. Closed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00
Inventor 薛进军段敏陆焕春黄宁
Owner GUANGXI UNIV
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