Longjing long Leaf, a New High quality, early Health and Cold resistant Longjing Tea Variety
Longjing long Leaf is a new green tea variety with early birth, high quality, cold resistance, disease and insect resistance selected by Tea Research Institute of Chinese Academy of Agricultural Sciences. it was examined and approved by the National Tea Variety examination and approval Committee in 1994.
1. Quality characteristics: suitable for making flat-shaped famous green tea and bulk green tea with high quality. Made of Longjing tea, the shape is handsome, sharp, flat and smooth, the color is green and yellowish, the aroma is clear and prominent, and the taste is fresh and mellow. Its biochemical composition, spring tea fresh leaves contain 4.1% amino acids, tea polyphenols 18.6%.
2. yield level: the yield of this variety is generally more than 210 kg per mu, which is 8.2% higher than that of Fuding Dabai tea.
3. General agronomic characters: asexual reproduction line, belonging to shrub type, middle leaf type, early species. The tree posture is more erect, the branches are dense; the leaves are green, the buds are yellowish green, the hairs are less, and the weight of a hundred buds is 36.2 grams; the new shoots have strong tenderness; spring tea sprouts early, generally germinates in the middle of March, and can reach one bud and one leaf at the end of March; cold resistance and drought resistance are strong.
4. Suitable areas for promotion: suitable for planting in Jiangnan and Jiangbei tea areas. 5. Key points of cultivation techniques: suitable close planting can be made when planting.
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Varieties of Longjing tea
Longjing tea is a treasure of tea, and "Xihu Longjing Tea" is famous for its "green color, fragrance, mellow taste and beautiful shape". The quality characteristics of high-grade Longjing tea are as follows: the appearance is quite sharp, flat and smooth, Miao Feng is exposed, the color is green and slightly yellow, the aroma is high, fresh and quiet, the taste is sweet and fresh, the soup color of apricot green is clear and bright, and the bottom of the leaf is tender and even into flowers. Because Longjing tea has a unique style, strict quality requirements and strong seasonality, it is also very particular about the choice of varieties. Generally speaking, the varieties suitable for making Longjing tea should have
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Occurrence and damage of tea caterpillar and its integrated control
In recent years, with the development of pollution-free tea and organic tea production, the number and number of chemical pesticides used in tea gardens decreased, and some tea gardens even did not use chemical pesticides, which led to the aggravation of tea caterpillar damage in a short time. The tea caterpillar damage occurred in the tea garden of the author's county for several years in a row, and only bald branches were left in the damaged tea trees, which greatly affected the economic income of tea farmers. The main results are as follows: 1. The tea caterpillar bites the leaves with larvae, resulting in missing leaves and bald branches. 1the 2nd instar larvae gathered on the back of the leaves to feed on the mesophyll, leaving only the epidermis and veins, and the damaged leaves were transparent.
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