After the spring begins, the temperature rises and the tea buds begin to sprout. The early harvesting of prolific and famous teas is the key to tea production value-added and economic benefits. Therefore, the majority of tea farmers must manage the management of tea garden fertilizers. Here are some of the major measures for early spring management of mature tea gardens:
Precipitating fertilizer. According to the climate characteristics of this year, germination fertilizer should be applied early after the Spring Festival (late February). The tea plantation is not enclosed in a tea plantation. Fertilizer furrows are opened at the vertical part of the canopy and the furrow depth is about 10 cm. The tea plantations that have been sealed should be applied between the rows. Slopes of tea gardens have more rainfall in spring, and fertilization channels open above the tea line. should. Apply 15-20 kg of urea per acre, or 40 kg of compound fertilizer, cover soil after application and combine shallow tillage and weed control. For tea gardens with a high density of tea trees that are not suitable for open fertilization, urea can be spread on a cloudy day and the bamboo canopies can be used to shake the tea leaves and allow fertilizers to fall into the soil. In order to advance the tea germination and strive for the early morning mining of famous tea, it is also possible to spray “Tea Tree Spraying Early†about 45 days before the mining of the local famous tea (developed and produced by the Hunan Tea Research Institute). ~12 days.
Light trim. Winter tea tree crowns are slightly frost-damaged and can be lightly trimmed. Tea gardens have no frost damage in winter and do not perform light trimming before spring tea so as to give full play to the growth of tea buds and promote early germination of tea trees. Practice has proved that the tea shoots that are not lightly cut before spring tea can germinate and germinate 5 to 7 days in advance. This kind of tea plantation can be lightly trimmed after the spring tea is over.
Qinggou drainage. If there is much rain in the spring, if the tea garden is not well drained, the tea tree is vulnerable to waterlogging, which can cause the tea tree to rot and the tea bud to be delayed, resulting in a reduction in production. Therefore, the drainage system should be drained in a timely manner to ensure that the groundwater level is below 1 meter and the rain stops. Park dry, there is no water in the tea garden.
Timely mining. The selection standard for the general famous tea is 1 bud and 1 leaf. If the buds of 5% to 10% of the tea garden reach the picking standard, the picking should be started immediately. As early as the production of silver needles, tea gardens in the hilly area can be mined in late March.
Pest control. The spring tea picking period coincides with the first generation of tea caterpillars (mid-to-late and mid-April to mid-April). The larvae are highly gregarious and can be diluted 100-200 times with neutral soaps, on overcast or rainy days. Sunny day comes in touch sooner or later. When necessary, it is also possible to use 2.5% Uranus 3000-6000 times solution, 10% cypermethrin 6,000 times solution, 50% dichlorvos, or 50% phoxim 1000 times solution to kill locally. The end of March is the peak of the damage of the larvae of the codling moth and brown codling moth. During this period, two codling moths have the characteristics of concentration and are suitable for manual removal of the body. Lumbricus citrifolia is a kind of pest that sucks the bud head sap. In the middle and late April, a large number of spring teas were harmed. The occurrence of large quantities can be sprayed with 3% acetamiprid (e.g. acetamiprid) EC from 1000 to 2000 times, or 10% imidacloprid soluble powder 4000 times local poison.
Provincial Tea Research Institute
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