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After spring tea is picked, the tea plant branches and stems need even more protection

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Whether or not tea plants are managed after the spring tea harvest makes a big difference, because after the spring tea harvest the plant body has already consumed a large amount of nutrients. If management cannot keep up at this time, it will not only affect the yield and quality of summer and autumn tea, but also affect the yield and quality of next year's spring tea. Based on our farm's practical experience, the following key points should be carried out after the spring tea harvest: 1. Reasonable topdressing. According to measurements, producing every 50 kg of dry tea requires absorbing about 2.5-3 kg of nitrogen, 0.9-1.2 kg of phosphorus, and 1.1-1.5 kg of potassium from the soil. Between the tea plants, 30 cm

Whether or not tea plants are managed after the spring tea harvest makes a big difference, because after the spring tea harvest the plant body has already consumed a large amount of nutrients. If management cannot keep up at this time, it will not only affect the yield and quality of summer and autumn tea, but also affect the yield and quality of next year's spring tea. Based on our farm's practical experience, the following key points should be carried out after the spring tea harvest:

1. Reasonable topdressing. According to measurements, producing every 50 kg of dry tea requires absorbing about 2.5-3 kg of nitrogen, 0.9-1.2 kg of phosphorus, and 1.1-1.5 kg of potassium from the soil. A ditch can be dug 30 cm between the tea plants, and for every 667 sq m apply 10-15 kg of urea, 3,000-4,000 kg of farmyard manure and pig and cattle pen manure, together with 20-30 kg of phosphate and potassium fertilizer or cake fertilizer. If the plant vigor is very weak, spray the leaves with 0.5% urea solution or 0.2%-0.3% monopotassium phosphate solution.

2. Intertillage and weeding. The intertillage depth should be about 10-15 cm, and it can be deeper 30-40 cm away from the tea plant root crown, and all weeds should be removed. Through intertillage and weeding, the soil is loosened, the soil's ability to store water and supply fertilizer is improved, and the plant vigor is promoted to recover as quickly as possible.

3. Scientific pruning. Light pruning should be carried out on the branches retained that year, removing the shoots that grew in the previous year, water sprouts, dead branches, diseased and pest-damaged branches, and so on, while retaining healthy branches on the bush surface so as to favor the sprouting of buds and leaves. For aged tea plants, heavy pruning is necessary, cutting off about one-half of the tea canopy and leaving the main branches and side branches; or the collar pruning method may be adopted, cutting away the part more than 7-10 cm above the stem base, and then applying heavy fertilizer and strengthening management to achieve the goal of renewal and rejuvenation.

4. Pest and disease control. The main pests and diseases of tea plants in spring include leaf blight, tea tussock moth, small green leafhopper, and tea aphid. For leaf blight, lime sulfur mixture and Bordeaux mixture should be sprayed throughout the plantation for control. For tea tussock moth, a 1,000-fold dilution of 90% trichlorfon or a 2,000-fold dilution of 80% dichlorvos can be sprayed for control. For small green leafhopper and tea aphid, a 2,000-fold dilution of 40% dimethoate or a 1,000-fold dilution of 25% metolcarb can be sprayed for control.

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