A kind of pruning method of chestnut tree with short trunk and small crown

Abstract

The invention discloses a pruning method of chestnut trees with short stems and small crowns, and relates to the technical field of pruning methods for economic forests. Pick the heart or cut off the stem at a distance of 1 cm; S2 selects and retains the first main branch; S3 selects and retains other main branches; S4 cultivates side branches and branch groups: while selecting and retaining main branches at all levels, on the outside of the main branches, according to the alternate arrangement Requirements, select and reserve the first to third side branches, carry out heavy short cuts or pull branches on the upright strong branches that affect the growth of main branches and side branches, etc., and cultivate them into fruiting branch groups; S5 happy forming: in 3 or 4 main branches After selection, the central branch is subtracted to keep the main branches growing evenly outwards. Without a central trunk, the tree shape with short stems and small crowns has been formed. Beginning in the fourth year, retract and renew every year to control the canopy. It can effectively avoid the problems of excessive growth of chestnuts, strong outside and weak inside, empty inner halls, peripheral results, low yield, poor quality, and low efficiency.

Description

technical field [0001] The invention relates to the technical field of pruning methods for economic forests, in particular to a method for pruning chestnut trees with short stems and small crowns. Background technique [0002] The average yield of chestnuts in Shandong is only about 140 kg per mu, which is low yield and low efficiency. The main reason is improper pruning techniques. In the past, the traditional habit was to let the chestnut tree be left alone. The chestnut tree is tall, with few fruits, and it is widely planted and poorly harvested. Later, after pruning was carried out, most of the tree shapes used were dry tree shapes. Although there were happy tree shapes, the trunks were too high, there were many main branches and side branches, and the number of mother branches was large. These tree shapes led to excessive growth of chestnuts. , Strong on the outside and weak on the inside, empty inside and outside, resulting in low yield, poor quality, low benefit, and...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects in the prior art, the present invention provides a method for pruning chestnut trees with short stems and small crowns, which can effectively avoid excessive growth of chestnuts, strong outside and weak inside, empty inside halls, fruiting outside, low yield, poor quality, and low benefits. high problem