Autumn and winter management of tea gardens

After deep-falling the tea tree through the spring, summer and autumn seasons of growth and picking, the tree body has consumed a lot of nutrients, and the soil between the rows has also become hardened. Deep plowing in autumn and winter is conducive to loosening the soil, improving the physicochemical properties of the soil, promoting the growth and development of the tea tree roots and the permeability of the soil, which is very beneficial to the restoration of the vitality of the tea tree. Deep plowing should generally be carried out from the beginning of October to the beginning of November every year, with a depth of 15-20 cm. It is too deep to injure the root system and affect the normal growth of tea plants.

The fertilized tea trees that were not fertilized in autumn and winter showed weaker growing vigor after spring, and the leaves were small and thin, with poor quality and a significant decrease in yield. However, in autumn and winter, 3,000 kg of high-quality soil-fertilizer was applied per mu, or 200 kg of cake fertilizer and 10 kg of urea were applied. The tea plants showed a strong growth after spring, thick leaves, good quality, and a significant increase in yield. The average yield per mu increased by more than 15%. Fertilization in autumn and winter in tea gardens should usually be based on farmyard manure or soil miscellaneous fertilizers, with an application rate of 2000-3000 kilograms per mu. Can also be used 150-200 kilograms of cake fertilizer per mu, urea 10-15 kilograms in the tea tree line ditch deep facilities. After application, soil should be covered to prevent loss of fertilizer. For stepped tea plantations, fertilizer should be applied inside the steps. Fertilization in autumn and winter is generally completed before the end of October, and it must not exceed November 15 at the latest. Late fertilization will affect fertilizer efficiency due to low temperatures and weak root absorption.

Pruning in the winter without frost damage in the tea area, in the late autumn, combined with the closure of the park on the tea Pengpian 3-5 cm deep light trim.

In autumn and winter in the park, the weeds and litters between the tea trees are the places where pests and germs are hidden. The gardens should be cleared in time to reduce the number of overwintering pests in tea gardens. The overwintering pests of tea plants mainly include leaf blight, round spot disease, small green leafhoppers, tea-footworms, acarids and mites. Can be used 0.7% lime half-type Bordeaux mixture, 50% marathon 1000 times liquid and 0.3-0.5 Baume degrees of lime sulfur for prevention and treatment. When spraying, the tea bushes shall be sprayed up and down, inside and outside, and the front and back of the blades shall be sprayed. The weeds on the ground and the branches in the tent shall also be sprayed to improve the control effect. The closure of the garden will end before the end of November.

Before the onset of the cold-freezing cold wave, it is necessary to do a good job of ploughing the soil, fertilizing soil, and paving the grass in time. In the tea plantation line, apply some cow manure, coke ash and phosphorus potassium fertilizer and other warm fertilizers to help increase soil temperature. After the fertilization, the soil shall be cultivated in time, and a new 8-10 cm thick soil layer shall be planted at the base of the tea tree to prevent the root system from being exposed to freezing injury. For tea gardens with serious water and soil loss, we must do a good job in earth-cultivation. After the soil is cultivated, local materials can be used to cover the tea tree rows and roots with fireweed, straw, and manure, so as 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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