Tea plantation winter management technical points

1. Guest soil garden. For tea gardens with shallow soil layers and low fertility, the soil should be cultivated in time after applying the base fertilizer. Breed 8-10 cm of new soil at the base of the tea tree to prevent freezing damage caused by root exposure. In the cascade tea garden where soil erosion is serious, it is necessary to do a good job in soil conservation. You can choose some exotic clean soil, such as red loam, yellow loam, soil, etc. around the tea plantation or other slopes, and cultivate it to the base of the tea tree. It is generally required that the clay soil tea garden is cultivated into sandy red loam soil, and the sandy soil tea garden is cultivated into cohesive soil; the low-yield tea garden and the aging tea garden should be cultivated into the red and yellow soil. The soil can thicken the tillage layer, improve the soil vitality, prevent the soil from “aging”, and have obvious effects on promoting the early germination of spring tea and improving the quality of fresh leaves.

2. Pest control. After the end of the tea season, as the temperature gradually decreases, the pests and diseases begin to enter the wintering stage. In order to prevent the occurrence and harm of spring tea pests and diseases in the second year, the Qingyuan spraying should be done well.

1 comprehensive clearing garden. The weeds and litter between the rows of tea trees are hidden places of pests and pathogens. The timely implementation of clearing gardens is beneficial to reducing the number of wintering pests and diseases in tea gardens. First, during the pruning and deep tillage, the diseased leaves and worms on the canopy should be removed in time. The second is to remove the litter between the rows and the surrounding areas, and then burn them intensively to eliminate the overwintering bacteria and insect sources.

2 spray sealing garden. The overwintering pests of tea trees mainly include small green leaf mites, tea mites, tea caterpillars, mites and mites. After the autumn tea is harvested, if the pests and diseases are still very serious, pesticides can be sprayed once in the first ten days of October. Then, from late October to early November, the entire tea plantation should be controlled with 0.7% lime half-quantity Bordeaux solution or 0.3-0.5 bume of stone sulfur mixture. When spraying, the tea should be sprayed from the top, bottom, inside and outside, and the front and back of the blade. The weeds on the ground and the branches inside the bud should also be sprayed to improve the control effect.

3, tea tree antifreeze. Before the advent of the cold wave, it is necessary to timely plow the soil, apply the base fertilizer and lay the grass between the rows, and apply some warm fertilizers such as cow manure, coke ash, phosphorus and potassium fertilizer to increase the soil temperature between the tea gardens. The use of firewood, straw, manure, etc. to cover the intercropping and roots of tea trees, in order to improve soil temperature and maintain soil moisture. Before the cold wave, straw, weeds or film can be used to cover the surface. After the spring, the cover is removed in time to prevent the tea tree from being frozen, promote the early germination and strong bud of the tea tree, and realize the high quality and high yield of spring tea.

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