The tea harvested in the tea plantation in Anxi, Fujian province of Anxi, tea farmers in spring, has high yield and good quality. The old Shen family is very happy. In order to win the summer tea and autumn tea harvest, after finishing the spring tea, in the middle and late May he had to top up the tea tree. At that time, there was a new type of compound fertilizer on the market. The nutrient content of nitrogen, phosphorus and potassium on the packaging bags was 30-5-5. Lao Shen believes that this fertilizer is a compound fertilizer containing N, P, and K, and there is no problem in applying more fertilizer. Therefore, it uses 30 kg of fertilizer per acre. The method of fertilization is to apply a hand at a hole and not to bury the soil. One week after topdressing, the old Shen found that the old leaves on the tea tree had a phenomenon of littering. The young leaves appeared dark green and germination was slow. By the beginning of June, as the temperature rose, the leaves of the tea tree appeared brown, and as a result, the summer tea was not harvested. In late July, a nitrogenous fertilizer and potassium fertilizer were applied. This time the application was 8 kg/mu urea and 5 kg/mu potassium sulfate. When fertilizing with cultivator loose soil, it encountered sufficient rainwater, the tea plant gradually returned to normal and harvested autumn tea. Shen Jianmin wanted to know why the spring tea harvest was good and summer tea had a problem.
Experts: The problem with summer tea in this case was caused by improper top dressing. After picking up the spring tea in late May, due to the large consumption of nutrients, it is necessary to top-up fertilizers in a timely manner. Shen Jianmin's dressing time is appropriate, and the problem lies in the improper application amount and fertilization position. With the method of high-nitrogen compound fertilizer (30-5-5) 30 kg/mu, the nitrogen nutrient applied at a time amounts to 9 kg, not only in quantity, but also in the top soil of the hole. The nitrogen in this nitrogen-containing compound fertilizer is in the form of urea. Under the conditions of higher temperature in the south, it quickly decomposes to produce ammonium carbonate and ammonia, and can directly inhale and injure the tea through the volatile evapotranspiration of ammonia gas. If the fertiliser is not irrigated and there is no rain, then the fertilizer on the surface will not be soiled or dissolved and the root will not absorb the nutrients in the fertilizer.
From this, it can be seen that the tea trees planted on hilly slopes have a low soil layer and poor lyrical conditions. General urea 5 ~ 8 kg, fertilization should be combined with cultivator weeding, soil fertilizer mix, timely watering, to prevent burning root smoked leaves.
In this case, the growth of spring tea is due to the proper use of basal fertilizer. The basal fertilizer was applied from the end of October to early November of last year. The applied fertilizer includes organic fertilizer and chemical fertilizer, and the organic fertilizer is mixed with cattle manure and cake fertilizer. kg. Compound fertilizer uses a general-purpose compound fertilizer with a N, P, and K nutrient content of 15-15-15 and 30 kg per mu. The application of basal fertiliser embodies the characteristics of early and deep-seated time, with ditching on both sides of the tea tree and a depth of 15 to 20 cm. Due to the early, deep, and good application of basal fertilizer, the growth of spring tea tree was more than that of spring tea, and the spring tea gained a good harvest.
The following is the fertilization method collected on the Internet by fjteaw.cn, for your reference:
1 Base fertilizer New tea plantation combined with recultivation and layered application requires 2000-3000kg of manure or farmyard fertilizer per 667m2 (mu), 100kg of oil sagger, and 100kg of superphosphate.
2 The basal fertilizer is mainly organic fertilizer. In the fall of the year, the planting is deep and the depth of fertilization is more than 20cm. Generally, every 667m2 (mu) is applied with cake fertilizer or commodity organic fertilizer 200-400kg, or farmyard fertilizer is 1000-2000kg. Phosphate fertilizer is applied according to soil conditions. Potash and other required nutrients.
3 According to the law of growth and development of tea trees, topdressing is carried out several times, mainly with nitrogen fertilizer, and is applied 15 to 30 days before the tea is extracted. The ditch depth is about 10cm. Topdressing nitrogen fertilizer, each dosage of 667m2 (mu) per unit (calculated as pure nitrogen) shall not exceed 15kg, and the annual maximum total dosage shall not exceed 60kg. Cover soil immediately after fertilization.
4 Foliar fertilization Foliar fertilizer can be used depending on the growth of the tea tree. Foliar fertilizer should be combined with soil fertilization and stopped for 10 days before picking.
5 According to the principle of fertilization, green manure should be properly planted with green manure.
Deep Processed Ginger Products
Deep Processed Ginger Products,Ginger Capsules,Ginger Vitamins ,Ginger Tablets
Yirun Agricultural Cooperative , https://www.yiruncn.com