T/GZTSS 7.2-2022 Active

Scope: This document specifies the terms and definitions, garden construction, tea tree planting, tea tree pruning, soil and fertilizer management, pest and disease control, and fresh leaf picking requirements for Pu'an Hong tea production. This document is applicable to the production and management of Pu'an black tea gardens. Main technical content: Select local tea resources that adapt to local climate conditions, such as Qianmei 601, Qiancha 419, and Yunnan large-leaved tea varieties, etc., with seedling quality meeting the GB 11767 standard of Grade 2 or above. The tea seedlings should be of consistent size. It is suitable to transplant from August to November each year. The planting specifications for conventional tea gardens are: single row and single stem planting with a row spacing of 1.6m, a planting pit depth of 0.5m, and a stem spacing of 0.35m to 0.4m, with 1,000 to 1,300 tea seedlings per mu. For double row and single stem planting, the row spacing is 1.7 to 1.9m, the planting pit depth is 0.5m, the small row spacing is 0.40m to 0.5m, and the stem spacing is 0.35m to 0.4m, with 1,300 to 2,200 tea seedlings per mu. For bionic tea gardens, the row spacing is 2 to 3m, and the stem spacing is 2 to 3m, with 70 to 170 tea seedlings per mu. Before planting tea seedlings, first mix the raw yellow clay with water thoroughly, then coat the roots of the tea seedlings with yellow clay slurry. When planting, hold the tea seedlings upright with one hand and fill in soil with the other, covering the soil to the soil line. Straighten the tea seedlings and pull them upward until the roots are fully extended. Then compact the soil and cover it to the soil line, and water it thoroughly to help the roots take root. Before planting in bionic tea gardens, apply base fertilizer, with each nest receiving more than 0.8kg of organic-inorganic compound fertilizer for tea, along with appropriate phosphorus fertilizer. After fertilizing, cover the soil with a layer of about 0.15m