Winter tea garden management technology

Winter tea garden management is an important agricultural technology measure. It is directly related to the quality, output, and benefits of tea in the following year. In order to improve the technical level of tea garden management, give full play to the production efficiency of tea gardens, and promote the increase of spring tea in the next year, it is extremely important to ensure that tea gardens in tea gardens are well managed.

First, the deep-throw tea trees have been grown and picked during the spring, summer and autumn seasons. The trees have consumed a lot of nutrients, and the soil between the rows has become very compact. Deep plowing in winter is conducive to loosening the soil, improving the physicochemical properties of the soil, promoting the growth and development of tea roots and the permeability of the soil, and is very important for restoring the growth of tea plants. Deep plowing is generally carried out from early November to early December of the year. Combined with filling, the depth of 15-20 cm is appropriate. It is too deep to injure the root system and affect the normal growth of tea plants.

Second, fertilization tea garden winter fertilization mainly farmyard manure or organic fertilizer, the application rate per mu is 2000-3000 kg or 1000-1500 kg. Trench deep in the tea tree line, after the application should be covered with soil to prevent loss of fertilizer. For stepped tea plantations, fertilizer should be applied inside the steps. Fertilization in winter is generally before the end of December. Fertilizers are affected by late-fertilization due to low temperatures and weak root absorption. But can not be given too early, otherwise it will delay the autumn shoot freeze, affecting the normal growth of tea.

III. Pruning In the year-round production, there are tea gardens with flattening and picking surfaces that can be lightly trimmed by 3-5 cm in winter to control tree height and cultivate tree crown picking surfaces. The vigorously growing tea trees generally cut out the protruding parts of the bonnet to make the canopy flat; for the tea gardens with more thin and weak branches and chicken claws, the yield began to decline, deep pruning was performed, and the thickness of the green leaf layer was cut to 10-12 cm. Remove all the chicken claws, so that the next year, germinate thick, strong, homogeneous; For the old tea garden that has been aging, the production level decline, should be pruned, cut the height of the canopy, and promote the full restoration of the tea tree crown, as soon as possible Production capacity.

4. The weeds and litters between the tea gardens in the closed gardens are the places where pathogens and pests will pass through winter. Clearing the gardens in time will help reduce the number of overwintering pests in tea gardens. It can be controlled with a 0.3-0.5 Baume degree lime sulfur agent. When the spraying temperature does not exceed 15°C, the weeds in the upper and lower leaves of the tea bush, inside and outside the leaves, and on the ground must be sprayed and sprayed to improve the control effect. To be completed before the end of December, when the closure of the park should be strictly controlled the concentration of liquid to avoid phytotoxicity.

V. Antifreeze Winter high altitude tea gardens should pay attention to antifreeze, and timely deep plowing of soil, fertilization and inter-row grassing will help increase the soil temperature, cover the rows with straw, weeds, etc., prevent tea trees from freezing and promote early spring budding of tea trees. Develop strong buds to achieve high quality and high yield of spring tea.

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