Autumn tea garden management technology
Fall autumn, air temperature, suitable temperature, low air humidity, is very conducive to the collection of high-quality autumn tea, is an important season for tea production, in order to increase autumn tea production, improve quality and efficiency, grasping the importance of autumn tea garden management. For freshly planted tea gardens, the soil is exposed to a large degree, and autumn is relatively dry. Grasping the management of autumn tea gardens is an important measure to improve the survival rate.
1. Cultivated weeding: After the end of the summer tea, the tea gardens were ploughed shallowly, 10 to 15 cm deep, and the tea plantation ladders and weeds were removed. Weeding herbicides use 250 to 300 times of gadolinium solution (30 to 50 ml per pot of water, ie, 1 to 2 bottle caps). The spray head is equipped with a protective cover to prevent the liquid from being sprayed onto the tea (seedling).
Second, chase fertilizer tips: (1) ditch application or spreading: the planting of tea plantations in the middle or side of the planting pot ditch fertilization, after the application of soil; large planting close planting tea plantation, can be before the rain or after the rain Shi. Young Park Mushi 5-10 kg or potassium sulfate compound fertilizer 7.5-10 kg, adult tea garden urea 10-15 kg urea or 15-20 kg of potassium sulfate compound fertilizer and urea 5 kg. (2) Extra-root spraying: In the second and third leaf development period of a bud, select a cloudy or sunny morning and evening spray 0.5-1% urea solution.
3. Soil Coverage: During August-September, the temperature is relatively high and the soil is relatively dry. To ensure the survival of the tea seedlings, the soil must be kept moist to ensure the moisture supply. For this purpose, soil cover measures should be taken to cover 5-8 cm thick on the planting earthworms. Weeds or straw, or cultivator to cover the grass surface.
Fourth, pest control: focus on the prevention of tea leaflets damage autumn shoots.
1, damage symptoms: adults, nymphs suck tea shoots tea tree shoots, female adults in spawning stem shoots, resulting in growth of new shoots blocked, damaged shoots curled, hardened, leaf tip, leaf margin red and brown scorch.
2. Prevention and control methods: (1) Prevention and control indicators: The number of tyloviruses exceeds 6 heads (46 heads per head) or more than 15 heads per square meter. (2) Prevention and control measures 1 Agricultural measures: Strengthen tea garden management, remove weeds from tea fields, and deteriorate habitats; timely and multiple picking in batches can reduce eggs and deteriorate nutritional conditions and reduce damage. 2 Chemical control: According to the pest forecast, one of the following agents can be sprayed and controlled before the peak of nymphs: 1000 times for pests (5 days for safety interval) or 2000-3000 times for 10% for imidacloprid (7-10 days). 25% Ake Tai Water Powder 15000-20000 times (7-10 days), 1.1% Green Wave 1000-1500 times (7-10 days), 98% Bataan 1500 times (7 days), 35% Dan (endosulfan) EC is 1000 times (7 days) and 2.5% Uranus is 3000-6000 times (7 to 10 days). When spraying, spray the tea garden first and apply medicine from outside to inside.
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