Tea pruning is one of the important tasks of tea garden management. The purpose of pruning is to make the tea tree have a good tree vigor and a wide picking surface, cultivate a teapot with a short, strong, wide, uniform, and improve the yield and quality of tea. It is suitable for mechanical tea picking and the work efficiency of tea picking. First, young tea tree shaping pruning. In general, the “cut by generation†method is adopted, and the tree crown is cultivated at the end of the year using a flat shear method. The specific approach is to repeatedly top-picking picking. The height and number of cuts should be determined according to the characteristics of the tea varieties. Specific pruning method is: the first fixed cut should be carried out in the nursery period, that is, when the tea grows to 20 cm high, take topping to promote its branching; planting the plant height in the year reached more than 30 cm, picking More than 25 cm of top buds and longer side shoots are carried out several times a year. After the end of heavy frost at the end of the year, they are cut at a height of 30-35 cm and the height of the plant does not reach 30 cm. In the second year after the planting, the top of each round was also topping. After the end of heavy frost, after the end of heavy frost, it was cut at the cut point of the previous year by 15-20 cm at the widest height of the flat shear or shed; the third year was Cut 6 to 8 centimeters at the cut in the previous year. Later, as the age increases, the height of pruning should decrease year by year. When the height of the canopy reaches 60-70 cm and the width of the canopy is more than 60 cm, it can be carried out according to the method of pruning the tea tree of the prime year. Second, tea tree pruning during the prime of life. The pruning in adulthood can be divided into light trimming and deep trimming. 1. The purpose of light pruning is to adjust the canopy, so that the nutrients in the plant body can be fully adjusted and distributed, the growth of lateral branches can be promoted, the crown width can be enlarged, the canopy can be formed at the same time, and a good picking surface can be cultivated. The trimming height should be increased by 3-5 cm on the basis of shearing in the previous year. Light pruning is done in a combination of winter shear and pruning after spring tea. For areas with good tea tree varieties, good fertilizer and water conditions, good growth conditions and abundant labor, in order to collect more spring tea, it is generally pruned lightly after picking spring tea. For tea plants with relatively simple varieties and large area of ​​tea gardens, tea plants with a concentrated spring tea production period should be planned to take a certain percentage of the area. The combination of winter pruning and pruning after spring tea will extend the tea-picking season and reduce the first round of tea harvesting. And the pressure of processing, so that it is conducive to timely picking, do a good job in processing and improve the quality of spring tea. 2, deep pruning When the tree crown appears a lot of chicken claws, buds are thin, as well as more loquat leaves, yield decreased significantly in the tea tree, to cut off the upper part of the crown 10-15 cm layer of leaves or at 80 cm height flat shear . Should be combined with heavy fertilizer, do peanut bran fertilizer and compound fertilizer application. To restore the tree vigor and improve the ability of budding. The deep pruning should be carried out immediately after the end of the autumn tea, so that Liming Spring will soon give birth. Third, the aging tea tree trim. The pruning of aging tea trees can be classified into heavy pruning and table cutting. 1. Heavy pruning applies to tea trees with semi-aging and premature aging, their age is not necessarily very long, but most of their main branches still have a certain ability to live. This kind of tea tree can be pruned, rejuvenated and refreshed. Generally, the tree can be cut off. 1/3-1/2. 2. It is very difficult to increase the output of the tea tree which is very old-aged, even if fertilization is added. The use of table cuts for this kind of tea tree was performed. Before and after the chill, sawing or cutting off all the branches at a height of about 15 cm from the ground, the panicles were raised again. Heavy pruning and table cutting should all be carried out after deep-rooting the basal fertilizer. Fourth, tea tree trim requirements. To cut the crown of the tree, when light pruning is performed, the thick protruding branches in the middle should be cut 3-5 cm lower than the flat surface. During the winter pruning time, the lowland tea plantation was carried out during the “big coldâ€; the alpine tea plantation was carried out during “the beginning of springâ€. China Agricultural Network Editor
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