Saplings are dried and reshaped
1. Make it dry. After the jujube is planted, due to the relatively slow growth, the early stage is not sufficiently thick or not strong enough to grow, so it is not necessary to cut it and leave more branches to make it as bold as possible. When the tree is as high as 1.5-2 m and the stem diameter is as thick as 2-3 cm, it is truncated at an appropriate height. Generally, pure jujube gardens are dried at 1.0-1.2 meters, and intercropping gardens are dried at 1.2-1.4 meters. Dry planting gardens may not dry. The 15-25 cm incision under the incision is an orthopaedic zone. In the orthopedic zone, 4-5 secondary branches are removed from the base to promote the emergence of a new jujube head on the main bud in the main stem to cultivate the main branch.
2. Shaping. In the second year after dry, choose to leave one branch that grows upright and stout as the center branch, and the lower branch to leave 3-4 branches with good orientation and angles as the main branch of the first floor. The others are all removed. After these branches grow strong, they are equipped with side branches and main branches on the main branch in the same way as in the third to fourth years.
The results of jujube tree pruning
The primary outcome tree is mainly to control unnecessary growth, reduce nutrient consumption, and increase production. Therefore, it is necessary to deal with sparse developmental branches other than the central stem, the main lateral branch, and the large-scale result branch, so as to preserve the space and cut off the terminal buds.
The fruit tree is mainly to maintain good ventilation and light conditions of the crown, so that the density of the branches and leaves is appropriate, results in a large number of results, and the results of the branch rejuvenation and replacement, so that the results of the branch to maintain a longer number of years of results. Specific methods: First, remove long, round, cross, parallel, overlapping branches. The second is sparse, thin weak branches and dense branches. The third is the appropriate retraction of the backbone. The fourth is to cultivate robust results and the resulting parent branch. The results of the renewal period were mainly to delay tree aging and delay results. Therefore, the method of retraction is mainly used to retract part of the penetrating trunk, and the other weak branches are also retracted accordingly. Generally, they are retracted to the strong buds of the jujube stock with strong vitality. The new jujube head promoted by the retraction of the backbone branches can be gradually cultivated into the main branch extension branches and lateral branches to enrich the internal condyle space. If a new branch appears on the stem, it can be directly retracted to the new branch.
Old Tree Update Prune
Pruning of old trees is a pruning measure for different ageing trees. According to the number of effective dates, corresponding pruning measures are taken separately.
1. Light update. When the effective jujube stocks are between 1000 and 1500, a slight retraction method can be used to cut off 1/3 of the total length of each backbone branch, which can increase the tree vigor and continue the result.
2. Updated. When the effective jujube stocks are between 500 and 1000, a moderate retraction method can be adopted. On each backbone stick, strong vitality, externally grown intensive stocks, and hidden buds are sawn off by 1/2 of the total length. Emerging new branches, while strengthening the tree management, raising trees for 1-2 years (not to open A), can restore the tree potential, normal results. 3. Update again. Generally, 300-500 jujube stocks should be re-updated. Also select stocks and latent buds, saw off 2/3 of the branches, make new shoots, re-form the crown, and then strengthen the tree. Under the tree management, raising trees for 2 years (without opening A) can restore normal results.
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