At present, tea gardens enter the summer management. After the tea trees are picked by spring tea, the tree body consumes a lot of nutrients and the tree vigor weakens. At the same time, as the temperature rises, the number of tea plant pests and diseases rapidly increases, and the weeds in the tea gardens grow rapidly. Not timely or in place, will directly affect the growth of tea and summer, summer, autumn tea production and quality. In order to ensure the increase of production and income of tea throughout the year, the management of summer tea gardens must grasp the following management measures:
I. Management of young tea plantation management Seedling period The management of this period of time is mainly designated within one to two years after planting.
1. Drought-resistant, complementary seedlings and weeding In summer, tea gardens should be watered and drought-resistant in a rain-free or dry season. They can be grown within 30 cm of each side of the tea seedlings and covered with 10 cm thick grass, which can both inhibit heat and inhibit the growth of weeds. If there is a shortage of plants, it will be necessary to complete the deficiency within one or two years of the establishment of the park, and it is best to make up the same age of tea. Weed removal within the weeds, or shallow plough weeding according to the soil compaction situation, generally do not use herbicides, if you want to use only herbicides. Young tea gardens can be interplanted with green manures such as kidney beans, mung beans, peanuts, etc., and indulge in greening and greening several times in a timely manner.
2. About 1 month after the fertilizer and water management of the tea seedlings, when budding or long new roots, 13-15 cm away from the tea seedlings, dig 7-10 cm deep shallow ditch, pouring thin water and fertilizer, then cover the soil. Apply fertilizer once every 15-30 days, and gradually increase the amount of fertilizer. Mushi 6-10 kilograms of urea can also be applied before summer tea buds sprout.
Second, put into operation tea garden management
1. Soil cultivation techniques combined with fertilization The cropland will be ploughed and weeded. The depth is about 10 cm. The herbicides are generally not used in the tea plantations but are manually weeded. The ladder walls should be managed by the weeding method and the grass layers at appropriate heights should be retained. In the early summer, the tea trees were covered with grass and drought and were about 10 cm thick. For low-lying plots, drainage ditches should be set up to prevent water accumulation in the tea gardens. During the high-temperature and dry season, no raining or nodding at the mid-day when the young leaves are withering lightly in 7-10 days. Weeding agents use 250-300 times grams of gadolinium herbicide. The spray head is equipped with a protective cover to prevent the liquid from being sprayed on the tea tree.
2, Fertilizer technology early application of precipitating bud fertilizer, summer tea precipitating fertilizer is generally fast-acting nitrogen fertilizer-based, promote the vegetative growth of tea tree, the new shoots germinate neatly. It is usually done as soon as possible after the end of spring tea. The main use of fast-acting chemical nitrogen fertilizers is nitrogen, phosphorus and potassium ratios of 2:1:1, depending on the age of trees and the yield of fresh tea leaves, accounting for about 30% of the whole year. The amount of fertilizer applied was 30 kg of ammonium bicarbonate or 15 kg of urea or 15 kg of potassium sulfate ternary fertilizer + 5 kg of urea. When 25% of tea buds are unfolded with one bud and one leaf, spray 0.5% urea or 0.5%-1.0% of superphosphate or 1000 times of plant power. Fertilization method can be applied in the vertical position of the tea tree crown dripping line, ditch applied or acupuncture, ditch depth 8-10 cm, hole distance 30 cm, cover soil after application.
3, summer tea surface spray fertilizer technology in summer high temperatures often encounter drought, the tea tree roots by the restrictions of water conditions, weak absorption capacity, root fertilization effect is poor. Foliar spray fertilizer can increase the yield of tea, enhance the tenderness of sprouts, and improve the quality of summer tea. Tests have shown that spraying leaves of tea leaves can increase tea production by about 10%.
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