Winter tea garden management is an important agricultural technology measure, which is directly related to the quality, yield and benefits of the 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 do a good job in tea garden winter tea garden cultivation.
1. Deeply turning over the tea trees After the three seasons of spring, summer and autumn, the tree has consumed a lot of nutrients, and the soil between the rows has become very knotted. Deep winter turning is beneficial to loose soil, improve soil physical and chemical properties, promote the growth and development of tea roots and soil permeability, and is very important for restoring tea tree growth. Deep turning is generally carried out from the beginning of November to the beginning of December of each year. Combined with filling, the depth is 15-20 cm. It is easy to damage the root system and affect the normal growth of tea trees.
Second, fertilization in the fertilization tea garden in winter is mainly based on farmyard manure or organic fertilizer, and the application rate per mu is 2000-3000 kg or 1000-1500 kg. Deeply apply the ditch between the rows of tea trees, and cover the soil after application to prevent the loss of fertilizer. For step tea gardens, fertilizer should be applied to the inside of the steps. Fertilization in winter is generally before the end of December. Due to the low temperature, the root absorption capacity is weak and affects the fertilizer efficiency. But it can't be premature, otherwise it will cause the late autumn shoots to freeze, affecting the normal growth of tea trees.
Third, pruning in the whole year of production, there is a tea plantation with smooth picking surface, can be used for light trimming 3-5 cm in winter, control tree height and cultivate canopy picking surface. The vigorously growing tea tree generally cuts the protruding part of the awning surface to make the crown surface flat; for the tea garden with more thin branches and chicken claw branches, the yield begins to decline, deep pruning, cutting the thickness of the green leaf layer by 10-12 cm, cutting All the chicken claws are removed, so that the germination is thick, strong and homogeneous in the coming year; for the old tea gardens that have been aging and the production level is reduced, they should be trimmed and cut off one-half of the height of the canopy to promote the full renewal of the tea tree canopy and restore it as soon as possible. Production capacity.
4. Weeds and litter between the rows of tea trees in Fengyuan are the places where pathogens and pests overwinter. The timely treatment of clearing gardens is beneficial to reducing the number of wintering pests and diseases in tea gardens. It can be controlled by 0.3-0.5 Bomei stone sulphur mixture. The temperature during spraying should not exceed 15 °C. It is required to spray and spray the weeds on the top and bottom of the tea, inside and outside the leaves, and improve the control effect. To be completed before the end of December, the concentration of the liquid should be strictly controlled during the closure of the garden to avoid phytotoxicity.
Fifth, anti-freezing winter high-altitude tea garden should pay attention to anti-freezing, timely deep-plowing soil, fertilizing and inter-row grassing, is conducive to raising soil temperature, covering with straw, weeds, etc., preventing tea trees from freezing and promoting early spring germination of tea trees. Develop strong buds to achieve high quality and high yield of spring tea.
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