The transformation techniques for aging and low-yielding tea gardens mainly include: transformation of garden phase, soil improvement, rejuvenation of trees, change of tea trees, and improvement of tea garden management.
First, change the tree
1. The method of changing trees: The use of senile tea trees is 10-15cm away from the ground at the station; the tea gardens are old, the trunk is robust, and the premature tea gardens use cut 1/3—1/2 of the tea tree or leave. 30-40cm heavy pruning; the use of deep pruning on thin and weak branches, chicken claws, cut off the thickness of the leaf layer 15-20cm;
2. To change the seasons of the tree, choose to trim during the beginning of the summer tea. Lufeng tea tree summer pruning should be carried out in early May.
Second, change the soil
Increase fertilization materials, trimmed tea gardens, apply 1000-2000kg per acre Shinongjia, mix fertilizer with NPK and trace elements 40-50kg, fertilize method: dig trench fertilization, depth 15cm, width 20cm, soil after application, Topdressing combines the growth laws of tea trees, and quick-acting fertilizers are mainly composed of compound fertilizers for tea mulberry, which are applied within 30 days before mining.
Third, the thinning
After each trim pile has 3-5 strong branches, remove excess branches.
IV. Replanting
For the lack of plants to take a line to make up. Dig the planting ditch in winter and transplant it in the spring or rainy season. The conditional tea plantation is planted with shade trees and a fast-growing and densely planted tea plantation is established.
Fifth, strengthen the reform of tea garden management
Prevent pests and diseases in time, conduct 2-3 times of cultivating each year, and apply fertilizer twice. Before spring tea, after the autumn tea, 50kg/mu compound fertilizer was applied, and pollution-free pesticides such as Uranus and Green Wave were used to control various tea pests.
Sixth, reasonable picking, picking and combining
Prevent early mining and strong mining. After the reform, the tea garden picking criteria are: high mining height, low strength, thinning, thinning, and picking in the middle, and training into a high-yield, high-yield tea plantation.
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