Spring tea management caught six

Weeding and loosening soil: after 5 months of rain and snow, the soil has solidified, some have grown grass, and the soil temperature is low. Therefore, weeding and loosening the soil before spring tea mining is beneficial to loosen soil, increase soil temperature, remove weeds, reduce the consumption of water and nutrients, and promote the early germination of spring tea. Weeding and loosening is usually carried out from the end of February to the beginning of March, with a depth of 10 Mel 15 cm.

Application of budding fertilizer: the time of applying budding fertilizer should be as early as possible and not too late. It should be ditched and applied at a distance of 15ml / 20cm from the root of the tea tree, and 30kg urea / 30kg / mu or 30kg compound fertilizer or 2000kg / mu compound fertilizer should be applied, and then covered with soil. For tea gardens that cannot be ditched and fertilized, urea can be applied on rainy days, and the tea canopy can be shaken with bamboo poles to let the fertilizer fall into the soil.

Pruning: pruning should be done from the end of February to before the sting, and no later than March 10 at the latest. Because the tea tree at this time after a winter dormancy, the stem and root storage of more nutrients, easy to restore the tree potential after pruning, and the spring temperature rises, the branches after pruning are not easy to freeze, labor is not tense, easy to master. Production tea gardens generally advocate light pruning, that is, cutting off last year's autumn shoots (green peduncles) and keeping spring and summer shoots (red peduncles), about 2mi 3cm long. Tea trees with frozen crowns should be pruned according to the degree of freezing, and it is better to be shallow rather than deep when pruning, so as not to cut off some branches that can still sprout. For the tea garden that is not frozen and picks famous and high-quality tea, in order to pick early spring tea, it can be pruned after the end of spring tea.

Clear ditch drainage: there are more Rain Water in spring, if the tea garden drainage is not smooth, tea trees are vulnerable to waterlogging rotting roots, resulting in delayed tea buds and reduced production. Therefore, it is necessary to timely open ditches and drainage, clear and dredge the drainage ditch, ensure that the groundwater level is below 1 meter, so that the rain stops the tea garden dry and does not accumulate water.

Supplementary application of foliar fertilizer: in the first ten days of March, when the temperature exceeds 12 ℃, the absorption function of tea leaves can be used to promote tea sprouting earlier, increase yield and improve quality. 0.5% urea, 0.3% potassium dihydrogen phosphate, multi-functional nutrient solution "Zhongcha Zao" and hormone "920" can be used for extra-root fertilization.

Pest control: during the spring tea picking period, when aphids, tea caterpillars and spiny whitefly pests occur in the early stage, we should spray and control them with 20% permethrin 2000000 times before the Qingming Festival after the Spring Equinox.