Organic tea refers to the production of fresh leaves according to the organic agricultural production system in areas where there is no pollution, and is free of chemical contamination during processing, packaging, storage, transportation and sales, and is certified by organic food certification agencies. It represents the development trend of tea production in the future and has great potential for development. Now its production technology is introduced as follows: First, the environmental selection of organic tea production areas should be far away from cities and industrial areas. The air in the production area meets the national first-class standard for atmospheric environment quality, and the irrigation water quality meets the national standard for surface water environment quality. The content of heavy metals such as copper, lead, cadmium, arsenic, mercury, and chromium in the soil must be lower than the national organic tea processing technology regulations. standard. The production, processing, storage sites and surrounding venues should all be kept clean and the use of chemicals should be prohibited. Second, the garden selection of organic tea gardens should be national or provincial quality seed gardens. Seed seedlings must come from organic agricultural production systems, and seedlings derived from genetic engineering should not be used. Organic tea and non-organic agricultural production land should have a certain isolation zone, garden soil organic matter content> 1.5%, PH value of 4.5 to 6.5, effective soil loose, strong biological activity. Within 100 meters around the tea plantation, no toilets, pits, livestock laps, etc. shall be allowed. Third, soil management 1 to 3 years old young tea gardens should be used as green manure between rows to improve the soil. Before the onset of the rainy season and in autumn and winter, base soil is covered with non-pollution straw, shanqing, etc. to reduce the loss of water, soil, and fertilizer. Water conservation and drought protection in the summer, winter insulation and antifreeze. For the tea gardens with fertile soil, no weeds and high coverage, there should be less (free) tillage. Promote the use of organisms (such as alfalfa, etc.) to improve soil structure and increase soil fertility. Chemical herbicides, synergists, and soil conditioners are strictly prohibited. IV. Fertilization techniques Organic tea gardens allow the use of organic fertilizers, natural minerals (such as ore saltpetre, etc.), natural humic acid salts (such as peat, etc.) that have not been contaminated with heavy metals, pesticides, and other harmful chemical substances and that have been rendered harmless. , as well as the production of organic liquid fertilizer, bacterial fertilizer, organic tea special fertilizer and so on. It is forbidden to use synthetic fertilizers, compound fertilizers, rare earth element fertilizers, auxins, and foliar nutrient solutions in organic tea gardens. Tea tree branches and leaves that are pruned every year must be managed to return the soil. They can be directly used as fertilizers to dig into the soil, and can also be used as soil coverings to spread between rows. Organic tea gardens should be applied with base fertilizers and topdressing. The basal manure uses organic fertilizers that have been fully decomposed for 1 to 6 months, including non-polluting fertilizers for various kinds of cakes, green manure, crop residues, peat, organic tea and other fertilizers. Top dressing uses human feces, animal waste, organic tea special fertilizer, and bio-organic liquid fertilizer that have been subjected to high-temperature composting and harmless treatment. V. Prevention of Diseases and Insect Pests New tea gardens should be prepared for seedling quarantine. Timely picking and pruning of the tea tree and taking the leaves of the pests out of the tea plantation and timely weeding and weeding. Using natural enemies and biological pesticides to control pests and diseases, the use of chemical pesticides is strictly prohibited. Observe the occurrence of pests in a timely manner and take artificial measures to remove diseased branches, diseased leaves or light traps. Appropriate use of lime sulfur, pesticides, and multi-liquid organic agricultural production licenses after the autumn tea is harvested. The Bordeaux mixture is used in an amount that does not exceed the copper content of the tea. 6. Harvesting According to the type of organic tea produced, tea is picked according to technical standards. Manual tea picking and mechanical tea picking are all acceptable. During the machine mining, the tea picking machine must use unleaded gasoline to prevent gasoline and oil from contaminating the tea plantation. Fresh bamboo leaves should be used for fresh and well-ventilated bamboo mesh tea baskets. The leaf packing capacity should not exceed 150 kg/m3. VII. Processing Technology Organic tea processing must implement national food hygiene law and food processing standards. Raw materials must come from certified organic tea gardens. Processing equipment must be made of materials that do not contain contaminants. The physical process and natural fermentation can only be used in the processing, and chemical treatment methods are prohibited. It is prohibited to use any synthetic food additives, vitamins and other additives. Workers who process and package organic tea regularly check their bodies and do not allow people with infectious diseases to take up posts.
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