After tea trees are continuously picked, a large amount of nutrients are consumed in the body. During summer, the soil is hot, the soil is compacted and weeds are piled up, and the soil strength is reduced, causing more pests and affecting normal growth. Therefore, the main task of summer tea garden management is to restore the vitality of tea trees, create a good ecological environment, and achieve high quality and high yields of summer and autumn tea. Hospital/Clinic/Drugstore Equipment Lightweight Wheelchair,Folding Wheelchair,Manual Wheelchair,Portable Wheelchair Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com
Weeding soil. Preventing grassland is an important part of the management of summer tea gardens. It is generally 10 cm in the canopy drip line, 20 cm outside the drip line, and digging out stones, weeds, and haystacks, breaking up the clods, loosening the soil, making it aerated, permeable, and increasing the savings and supply of water and fertilizer. Ability to speed up soil maturation, form a soft, fertile tillage layer, promote early growth of tea trees, and increase the yield of summer and autumn tea.
Topdressing summer fertilizer. After the spring tea is picked, the nutrients in the tree are consumed in large amounts, the shoots stop growing, and the growth of the roots is strengthened. Therefore, timely fertilization is needed to supplement the tree nutrients. According to tests, 100 kg of tea are generally harvested from the tea garden and 10 kg of pure nitrogen should be compensated to maintain the original fertility of the soil. If it is expected to produce 150 kilograms of dry tea per mu, 15 kilograms of pure nitrogen should be applied, of which 5 kilograms is used as base fertilizer and 10 kilograms is topdressing. Organic manure such as cakes, compost, manure, green manure, etc., or basal fertilizer every year or every other year, can be used for interlaced application, combined with phosphorus and potash fertilizers. In the fertilization of tea gardens, the frequency of topdressing may be more appropriate, so that the seasonal distribution of available nitrogen content in the soil is relatively balanced, and more nutrients can be absorbed at each peak of growth to facilitate the increase of annual production. Apply twice a year: 60% before Spring Tea and 40% before Summer Tea. 3 times per year: before spring tea, summer tea and autumn tea, apply 40%, 30%, 30%, or 50%, 25%, 25% respectively. The ratio of nitrogen, phosphorus and potassium is 2-4. 1:1. Generally, 15 kg of urea and 11.5 kg of calcium or magnesium phosphate fertilizer and 7.5 kg of potassium chloride are used in summer fertilizers in the tea plantations. In combination with tea plantation loose soil weeding, we dig a depth of 12-15 cm at the outer edge of the tea tree canopy dripping line. The small ditch, immediately after the deep application of soil, it is best in the late May to early June before the end of summer tea fertilizer.
Prune the crown. Tea tree pruning in the tea plantation is generally performed using only light and deep pruning. Deep pruning is mainly used for densely branched crowns, and the emergence of chicken claws and back branches, the occurrence of a large number of clips, tea production decreased significantly. The depth of deep pruning is the removal of branches 10-15 cm above the canopy. Deep pruning has a certain influence on the output of the year; generally after the senescence begins in the tea tree, it takes place every 5-7 years. Light pruning is to cut out the protruding branches of the crown, generally cut 3-5 centimeters, pruning should be carried out before the end of May.
Prevent pests. Summer tea gardens focus on prevention of tea cake disease and tea bud blight, and the focus of insect pests is on tea caterpillars and tea feet. Tea cake disease is mainly harmful to new shoots and young leaves. The lesions are recessed on the front of the leaves. The back of the tea cake has bun-like protrusions and produces pale white powdery spores. Control can be used 0.2% -0.5% copper sulfate solution spray, spray once every 7 days, and even spray 2-3 times. The leaf blight caused by tea bud blight is distorted and irregularly shaped. It is charred, and the lesion is black or dark brown. It usually occurs on the young leaves of summer tea. 70% thiophanate-methyl 75-100 grams per mu can be used to spray 50 kg of water spray. Spray once every 7 days. The larvae of tea caterpillars, tea worms, and other larvae can eat fresh leaves and shoots when they are severe. They can use all the leaves to eat light. They can use 90% wettable dipterex powder 100-150 grams per acre, and spray 45 kilograms of water every 5 minutes. Spray once every 7 days.