Summer tea on the spring tea, followed by autumn tea, is a link up and down the tea season. In summer, the weather changes greatly. In the early period, it is in the period of Meiyu. The temperature is high and the humidity is high. It is easy to breed weeds and diseases and insects. In the later period, there is more heat and drought, which directly threatens and hinders the normal growth of tea plants. Emphasis on the management of summer tea gardens, technical personnel in-depth tea base to guide tea farmers to focus on the following work:
Guarantee effective irrigation
Tea trees are economical crops for perennial foliage, and have a higher requirement for water, especially during the growing season when the temperature is high. Research shows that when the soil moisture content is 75% of field water capacity, irrigation can effectively ensure balanced production of tea in the dry season. Tea garden irrigation can be drip irrigation, sprinkler irrigation, flow irrigation, watering and other technical measures, but the overall consideration, the best irrigation effect; taking into account the water, drip irrigation effect is best. The amount of irrigation should be determined according to the weather conditions and the water demand of the tea garden, and the best is the soil water holding capacity and relative humidity of 90%.
Shallow ploughing and weeding
Shallow hoeing and weed control can not only reduce weeds' consumption of soil moisture and nutrients and reduce the occurrence of diseases and insect pests, but also can loosen the soil, increase the gap of soil, promote air circulation, increase air content, improve soil permeability and water storage capacity, and reduce runoff. This will increase the water holding capacity of the soil and its ability to receive rainwater, and improve soil water retention, fertilizer retention, and soil conservation. At the same time, the shallow ploughing and weeding cut off the capillary channel, prevented the capillary water from rising, reduced the thermal capacity and thermal conductivity of the soil, and reduced soil evaporation. Shallow ploughing is performed while weeding the tea garden weeds. Weeding and weeding should be carried out at least 4-5 times a year, on a sunny day after the end of each round of tea.
Tea gardens to prevent evaporation
The tea plantation in the tea garden can not only reduce moisture evaporation on the soil surface, increase soil moisture, preserve soil moisture, regulate soil temperature, prevent or reduce drought and heat damage, but also increase soil organic matter and other nutrients, reduce weed growth, and improve soil structure. Prevent soil erosion and increase tea quality and yield. It is best to shop in the tea garden. It is based on the principle of not seeing the soil after the grass is planted. If the conditions are limited, only the tea bushes can be paved.
Reasonable picking increase income
In hot summer weather, tea tree shoots grow slowly and are easily ageing. The quality of fresh leaves is poor, so many tea farmers adopt picking methods that are sparse, rough, and old, resulting in excess leaves, which increases tea tree moisture and nutrients. The consumption of tea causes water shortage and affects normal growth. On the contrary, if the method of partial harvesting, mining, and harvesting is adopted, the new leaves of the tea tree crown will be too small, which will affect the normal photosynthesis of the tea tree and affect the yield and quality of the autumn tea. It is also not conducive to safe wintering of the tea tree. Therefore, the picking of summer tea should insist on mining, batch mining, timely mining, increase the income of tea farmers.
Pest control does not relax
Summer is a period of high incidence of pests and diseases, we must actively control pests and diseases. With the increase in people's awareness of food hygiene and environmental protection, excessive pesticide residues and micro-organisms in tea products have attracted the attention of consumers. To this end, all tea production households are required to resolutely prohibit the use of high-risk, high-toxicity, high-risk pesticides that are not easily degradable in tea production. For the fact that the number of insect populations in tea gardens is large, during the production period, pests and diseases are mitigated through comprehensive agricultural control methods. Pesticides are not allowed to be used to prevent pesticide residues. It can be used for the control of pesticides such as rotenone, matrine, and green waves that are less harmful to the human body.
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