1, tea garden irrigation. Tea gardens with irrigation conditions can be drip-irrigated, sprinkling-irrigated, flow-irrigated, and water-irrigated. Drought irrigation is the best, and sprinkler irrigation has the best overall effect. The drip-irrigation water-saving effect is the best, and irrigation and watering are the most convenient. Tea gardens with spraying and drip irrigation facilities should use facilities as much as possible to save water. The amount of tea plantation irrigation should be determined according to weather conditions and tea tree water requirements, and the soil should maintain a certain degree of humidity. 2, grass cover. Tea trees are planted on both sides of the tree to reduce the temperature of the soil, keep the soil moist, store water, and suppress the growth of weeds. This is a good way to prevent drought and water. For straw, the whole plant of raw straw, raw green manure, and leguminous crops should be good. The thickness of grass is 8-10 cm, and the amount of grass is 1500 kg per mu. 3, appropriate fertilization. Appropriate fertilization in tea gardens can effectively improve the drought resistance of tea plants. Appropriate fertilization in tea gardens and nurseries can increase the water absorption capacity and drought resistance of tea trees, especially in young tea gardens, and proper fertilization in dry season is particularly important. Fertilizers are best used for composting and thinning human feces and urine. It is also possible to use 0.5% urea or 0.5% potassium dihydrogen phosphate solution for extra-root fertilizer. It can not only supply nutrients, but also promote the root system to grow quickly. It also increases the moisture and enhances the Drought resistance. 4, control of pests and diseases. During the drought, the tea plantation is prone to pests and diseases. The main tea plant diseases and insect pests are tea leaf spot, tea stem borer, tea caterpillar, snake eye borer, small green leaf carp, and carp. In addition to the low concentration of insecticides, it is best to choose to do it on a cloudy or sunny morning or in the evening. The leaves of young tea plantations are young and luxuriant, vulnerable to lepidopteran larvae such as small green leafhoppers and tea caterpillars. Uranus, imidacloprid and other pesticides can be used for prevention and control, which not only improves the drought resistance of seedlings, but also enables the seedlings to grow robustly. 5. Remedial measures. After the drought-prone mature tea plantation is put into operation, after the rain has passed through, the canopy transformation technique of deep pruning or heavy pruning or regrowth is adopted according to the degree of dryness of the branches, to remove dead leaves and leaves, and to apply sufficient fertilizer to intercrop the grass; When young tea gardens are to be held in “Little Spring Festival in Octoberâ€, the original drought-killed seedlings will be removed, and the same variety of tea seedlings will be replanted, and anti-freezing, drought protection and seedling protection work shall be done. Shaoxing Gangfeng Hospital Products Co.,Ltd. , https://www.gangfenggauze.com
Current tea tree drought and disaster prevention technical measures