1. Closely planted tea plantation in dense plantation tea gardens After the parks are put into production, the canopy has been closed to close the canopy, the lower leaves are poorly lighted, the tea plantation area has been harvested, and the production branch densities have remained stable, and the potential to increase production has been limited. In order to make tea buds grow faster and longer, it is necessary to accelerate the growth rate of new shoots and increase the number of picking rounds on the basis of the need to utilize the apical dominance of the groups to ensure shoot weight, thereby increasing productivity. This will require minimizing damage to germinating buds during the annual light pruning, making full use of the overwintering apical buds and the superior fatty axillary buds formed in autumn and winter to achieve continuous yield increase. For this purpose, branching pruning can be used, that is, cutting only the chicken claws and leggy branches of the bonsai. This pruning method, the green leaf loss is minimal, the branches are small and light, the wintering buds are intact, both to ensure the number of buds and increase the weight of the buds, and can be germinated 5 to 7 days earlier than normal light, spring Tea is extracted more than 10 days in advance, increasing production by more than 20%. Pruning of branches is not limited by time and season, and can be carried out at any time of the year. It is also an effective means for harmonizing individual and group conflicts in dense planting tea gardens. After several years of continuous pruning, if the tree height grows too quickly, deep pruning can be used to adjust. Due to the large canopy, planting tea gardens often cause people to walk close to affect farming operations, and also affect the ventilation of the tea garden. Every autumn and winter (also before spring tea) can be trimmed once. .
2. The regular tea garden cycle pruning (1) The main purpose of light pruning is to level the canopy, make the germination site relatively consistent, adjust the number of buds and buds, control the height of trees, stimulate the germination of the next round of tea, and improve the quality of fresh leaves. The depth of light pruning should be based on tea varieties, tree age, climatic conditions, tea garden management levels, and tree vigor. The strong tree pruning should be shallow, as long as the cut 3 to 5 cm can be, the weaker pruning slightly heavier, to cut 5 to 10 cm is appropriate. Pruning can increase the weight of a single bud significantly, but the density of buds is reduced, lighter trimming is conducive to increase the germination density, pruning should be based on the specific circumstances of the tea garden to grasp. Light pruning can be carried out every year in late autumn and early winter (from November to December), or it can be pruned every other year. For example, in order to make spring tea early in the alpine mountainous area and use more spring tea, light pruning is best delayed until late spring and early summer (late May). Trimmed tea trees are preferably curved, which can increase germination and picking. Trimming tools are all hedge trimmers (produced in Hangzhou and Sichuan), and where possible, they can be trimmed using electric trimmers (Japanese parts, assembled in Hangzhou).
(2) Deep pruning of tea trees After several young pruning and harvesting, the branches of the crown will become dense and thin. In order to obtain the twigs on the picking surface, the pruning is more important than light pruning. This type of cutting is called Deep trim. The degree of deep pruning is generally a cut of 10-15 cm of the green layer of the tree crown, which basically cuts off all the leaves left in the previous year. For the large-leaved species of tea, it needs to be cut to 20-30 cm to achieve the goal. Deep pruning has a certain loss for the current year's output and should not be carried out in short cycles. It is usually appropriate to do it once every 3 years. Most of the tea regions in Guizhou province are deeply pruned after harvesting spring tea, which will have relatively less loss of production in the year, and the high temperature and raininess in the summer will facilitate rapid recovery.
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