Litchi pruning technology

Lychee tree planting area close, as when the growth of the tree, the tree litchi of area of not section enlargement. After each year to harvest the decrease in the number of trees on need pruning (tree too big to cover part of the tree, is the tree branches to cut all the trees, need to cover tree cut down, let the tree growth)

1. Full clip litchi full clip content mainly includes retraction, short cut clip and ShuJian (scanty been to close and invalid branch). Mainly used for retraction pruning branches group update; Short cut is usually in the summer and autumn of the year after mining fruit, clip the quantity of female branch according to different varieties, planting density and determine the branch top strength. Practice has proved, along with the cultivation of the management level and technical level rise, with trees and water enough in healthy condition, power plants, seeketh ability normal smoke are usually germination gourd quarter, need to spend large amount to succoth, delete the artificial short cut gourd festival, reduce the quantity and the germination contributed to strong seeketh, cultivate the following autumn as the investigated. Therefore, and postharvest short cut clip, depending on the site, the different branches potential retraction of female branches in the results, and, when necessary, combining the branches retraction to update 3 years branches. Here should emphasize, weak tree cut or not should be light, strong tree should cut weighing shears. Otherwise, not depending on the variety and trees are weighing shears the potential situation, so feeble plant because limited nutrition branches are cut off and new shoots out, and even cause is weak tree failure. In addition to the short cut clip outside, still can cooperate ShuJian remove drooping branches and twigs, insect and crown peripheral overcrowded branches.

2. Aging tree clip litchi for longevity fruit trees, in normal management culture conditions, its often life can reach more than 100 years. Currently, the production, the old orchard appear in more than lose tubes, depression because orchard shadowing reasons, aging, causing tree in update ahead shall be treated in improvement rejuvenation respectively.

Aging tree mainly through rejuvenation retraction on branches, dry update pruning, prompting litchi backbone branch of the latent buds germination smoke, the new born fatten branches to strengthen management, forming new crown, restore tree, achieve the purpose of high potential. Updated clip should be based on the tree was the potential, do for tree cut.

Light failure tree, the tree levy for tree growth reduce the potential recession, branches and leaves, leaf, smoke tent sparse born, at the short, weak branches increase. Twigs level Armed with pruning branch top update primarily, focusing on weak branches, part of a severe recession, and bare branches group stems, short section or retraction clip, contributed to cut down the branches long mouth, and update branch group pruned the dead branches, pests branch, dense branches, overlapping branch, cross branch, etc, to reduce nutrient consumption to improve lighting and ventilation within the canopy new shoots conditions, to promote growth.

Heavy failure tree, the tree levy for new shoots, in part ZhuZhi aging initiation less dead, crown misshapen,. Clip method is mainly stems retraction to update. ZhuZhi withered failure, branches and leaves of sparse even jackknifing trunk xylem decay of trees, to cut saws to ZhuZhi or backbone intact parts; Such as trunk intact, but also certain areas of higher crown, can undertake filtering retraction. ZhuZhi tree of retraction can be divided into times, and to make each ZhuZhi height, make JuKou slightly updated after new champions submit stereo structure. For the JuKou, cut after trimmed mouth will be addressed protection with straw, cut back after the firm, mud, to keep with big branches, trunk and retraction period in early chunshu general advocate before the flow.

The update of weak tree should pay attention to the ground and underground part of coordination between heavy failure tree, a branch of the backbone to avoid causing nutrition dried up, the update in the ground department update, a year before first should combine enlarge hole to the roots of the underground part content of proper update, root system and absorb a function recovery part after any branch of the update, the backbone.

3. Dense tree with orthopaedic trimmed dense tree processing is mainly aimed at the fireside improper, or clip because of improper orchard self-stipulation cloying. Such orchard is characteristic of the tree is shadowing the cross cloying strong weak, tree potential under clear decline, disease and insect breeding, and graphic results and yield is more is degressive.

Litchi of xi light positive fruit trees, only in the illumination condition good circumstances, can the normal growth and results. So overcrowded trees processing, basically adopt scanty delete, weighing shears, retraction, thinning, and other means to in the premise of production cut loss reduction in plant, points the number of big branches, space, increase, twigs quantity, gradually improve ventilation, pervious to light conditions orchard, the result, restore to stereo output.

Dense tree in the processing, did not results or, can be directly to off-year tree branches sharply the backbone of the upright retraction to dry the ZhuJu high below trunk. After the germination of retraction, need not be moderate growth branches, should combine erased crown to cultivate short section or pick heart, make it become the temporary investigated group.

To plan the fireside or improper fireside orchards, should plan for a permanent and temporary plant, depending on the specific situation permanent plant crown, completes the tree training (accused of promoting), and partial to under temporary plants thinning or transplantation.

Orthopaedic clip is mainly to indulge growth, or previous trimming the self-stipulation caused by depression orchard. Such tree usually has ZhuZhi overmuch, cross overlap, tree messy, the backbone of branch affiliate unknown, easy to use of nutrients, and adverse tree body accumulate, in full, output after entering to improve. Therefore, orthopaedic clip is the focus of the re-establish and cultivating the backbone of the reasonable allocation branch structure.