1. Homeland culture garden. For tea gardens with shallow soil layers and low fertility, soil should be cultivated in time after basal fertilization. In the base of the tea tree, 8-10 cm thick new soil is used to prevent the freezing of the roots. For tea gardens with serious water and soil loss, we must do a good job in earth-cultivation. Some exotic clean soils can be selected, such as red soil, yellow loam soil and mud on the slopes of the tea garden or other slopes. It is generally required that viscous soil tea plants be cultivated into sandy red soil, sandy soil tea gardens should be cultured into cohesive soil, and low-yielding tea plants and aging tea plantations should be cultivated into red and yellow soils. Cultivating soil can thicken the tillage layer, increase soil vitality, prevent soil "aging", have a significant effect on promoting early spring tea germination and improving the quality of fresh leaves.
2. Pest control. After the end of the tea season, as the temperature gradually decreased, pests and diseases began to enter the overwintering stage. In order to prevent the occurrence and harm of spring tea pests in the second year, clean garden spraying should be done.
1 Completely clean the park. The weeds and litters between the tea trees are the hidden places of pests and germs. Clearing the garden in time will help reduce the number of overwintering pests in the tea garden. One is to remove the diseased leaves and worms on the canopy in time during pruning and deep ploughing. The other is to remove the litters between the rows and all around, then burn them together to eliminate overwintering germs and insect sources.
2 spray park. The overwintering pests of tea trees mainly include small green leafhoppers, tea-footworms, tea caterpillars, and crickets, and crickets. After the autumn tea is harvested, if the pests and diseases are still very serious, pesticides can be sprayed once in the beginning of October for prevention and treatment. Then, from late October to early November, the entire tea plantation should be treated with a 0.7% lime half Bordeaux mixture or a 0.3-0.5 Baume degree lime sulfur agent. When spraying, the tea should be sprayed from the top and bottom, inside and outside, and the front and back of the blade. The weeds on the ground and the branches in the canopy should also be sprayed to improve the control effect.
3, tea tree antifreeze. Before the onset of the cold wave, it is necessary to do a good job in cultivating the soil, applying the basal fertilizer, and paving the grass between the rows. Apply some cow manure, coke ash, phosphorus and potassium fertilizers and other warm fertilizers to increase the soil temperature in the tea gardens. The use of fireweed, rice straw, and manure spread the tea tree rows and roots to help increase soil temperature and maintain soil moisture. Before the onset of the cold wave, it can be covered with straw, weeds, or films, and the coverings can be removed in time after the spring to prevent the tea trees from freezing and promote the early spring sprouting of the tea trees and the development of strong shoots, thus achieving high quality and high yield of spring tea.
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