Drought prevention and drought resistance measures of tea seedlings

The key to whether the newly developed improved tea garden can grow into a garden lies in whether it can safely survive the drought in summer and autumn. The climate of this year is very special, the cool sun is in the sky just after Meiyu, and it has been in high temperature since the first ten days of July. Some districts and counties are at 38 ℃-39 ℃ continuously for 7-8 days, which seriously threatens the growth, development and survival of tea seedlings. Tea seedlings in our city are most likely to die from the sun in July and August, so how to do a good job in drought prevention and drought resistance of seedlings is very important. To achieve "cover", "cover", "irrigation", "application", "treatment", "remove" six aspects: cover: in the sunny side of tea seedlings, insert wheat straw or straw higher than tea seedlings in the soil, so as to avoid direct sun exposure and prevent harm caused by dry and hot wind. This method is based on local materials, and the method is simple and effective. Cover: mowing grass to lay the garden, can also be covered with straw, agricultural bran, dregs and so on, which can not only preserve soil and water, but also improve soil, and have a good effect of drought prevention and drought resistance. Irrigation: when there is a high temperature and drought, the best sprinkler irrigation conditions, can also be artificial watering. Sprinkler irrigation can be carried out in the evening, and the amount of spraying depends on the dryness of the soil. Watering can be mixed with mature and thin human feces and urine, and the effect of drought resistance is better. Fertilization can also improve the ability of drought resistance. When the drought comes or has been damaged by drought, the effect of application before the occurrence of drought is better. After obtaining nutrients, tea seedlings accelerate plant growth, especially make the roots of tea seedlings developed, and improve the ability of water absorption and drought resistance. Generally use human feces and urine or animal manure fertilizer, pay attention to dilution, 10 days or semimonthly. Treatment: young tea seedlings, the growth of fat and tender, vulnerable to diseases and insect pests, should be timely inspection, the right medicine, prevention and control of diseases and insect pests, to ensure the robust growth of tea seedlings, is conducive to improve the ability of drought resistance. Except: weeds are overgrown in summer, compete with tea seedlings for water, fertilizer and space, increase soil evaporation, and may accelerate the harm of diseases and insect pests. In production, shallow ploughing and weeding can be carried out and the soil capillaries can be cut off, but attention should be paid to mowing the grass at a certain distance from the tea seedlings and not to hurt the roots.