Alternating rejuvenating pruning method for controlling number of large branches and managing small branches of castanea mollissima

Abstract

The invention discloses an alternating rejuvenating pruning method for controlling the number of large branches and managing small branches of castanea mollissima, and belongs to the field of pruningof castanea mollissima trees. The disclosed pruning method comprises the steps that the number of the large branches is controlled, vigorous branches at the top end are removed, relatively healthy andstrong fruiting mother branches are retained for fruiting, and thin and delicate redundant useless branches are removed; two parallel healthy and strong fruiting mother branches are retained from front-end branch groups for fruiting, a renewal stake of 2-4 centimeters is retained on the adjacent position, and developmental branches of the renewed stake are promoted to grow for fruiting in the next year; through continuous fruiting and cultivation for three years, the overlong front-end branch groups are cut to retain stakes, and developmental branches of the stakes are promoted to grow for fruiting in the next year. The alternating rejuvenating pruning method can save nutrients, rejuvenate the trees, and can achieve free stretch and retraction of crowns, and the insides and outsides of the crowns are pervious to light and have fruiting mother branches, thereby achieving the purpose of three-dimensional fruiting.

Description

technical field [0001] The invention belongs to the field of chestnut tree pruning, and in particular relates to a method for alternately renewing and rejuvenating chestnuts by controlling large tubes and small tubes. Background technique [0002] Chestnut is one of the main woody food tree species in my country. However, due to its biological characteristics such as light-loving, apical dominance, and strong branching power, it is easy to make the canopy closed, resulting in insufficient light and ventilation inside the canopy, resulting in the fruiting of the canopy. The phenomenon of outward migration reduces fruit yield and quality, resulting in economic losses. Pruning in winter can adjust the structure of the tree, adjust the internal light of the canopy, and adjust the distribution of nutrients among various organs, etc. The ventilation and light transmission conditions in the canopy with different pruning intensities are different, resulting in differences in temperat...

AI Technical Summary

Problems solved by technology

This cutting method has three disadvantages: (1) only use the strong top to bear fruit, and chase outwards every year, and the fruiting part moves outward to the top of the branch

(2) There are no fruit branches in the inner chamber to occupy space, resulting in waste of space, low output and poor quality

(3) The tree is tall, labor-intensive and unsafe to operate

This method of shearing has three disadvantages: (1) it does not utilize the strong and fruiting mother branch to bear fruit, the yield is low, and the fruit quality is poor

(2) As a result of cultured with elongated branches in the inner chamber, the branch group enters the fruiting period late, and the large branch group occupies a large space, which affects the illumination of the inner chamber, resulting in low yield and poor fruit quality.

(3) The tree is tall, labor-intensive and unsafe to operate

It has three disadvantages: (1) Some varieties are not suitable for

Varieties that are easy to flower show high yield and good quality, while some varieties with poor flowering ability have no fruiting ability in the developed branches that year, resulting in low yield

(2) This pruning method requires high fertilizer and water management conditions

(3) The technology is complicated, it is not easy for fruit growers to learn, and it is difficult to master the scale

If the weight is cut, the yield will be low, and if the weight is cut, the quality of the fruit will be poor, and sometimes the phenomenon of large and small years will appear.

Images