Post-harvest management of tea plantations

1. Deep-throwing soil The tea tree has been grown and picked during the spring, summer and autumn seasons. The tree body has consumed a lot of nutrients, and the soil between the rows has also become compacted. Deep plowing in autumn and winter is conducive to loosening the soil, promoting the growth and development of the tea tree root system 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.

Second, reasonable fertilization in autumn and winter without fertilizer in the tea, after the spring is growing weaker, small and thin leaves, poor quality, yield decreased significantly; and autumn and winter reasonable fertilization of tea, after the performance of the spring growth, thick leaves, good quality Significantly increased yields, generally more than 15% per mu production. 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. Because too late fertilization will affect fertilizer efficiency due to low temperatures and weak root absorption.

Third, pruning the tree canopy in the winter without frost damage in the tea area, can be combined with the closure of the park in the late autumn, a 3-5 cm deep light pruning.

Fourth, timely closure of the park in the autumn and winter, the weeds and litter between the tea tree line is the hidden place of pests and germs, the garden should be cleared in time to reduce the base number of overwintering pests in the tea garden. 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.

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