A new method to prevent cold damage to grapes
For many years, due to the regional climate characteristics, the grape growing areas in our region have late frost and early frost intensity in spring and autumn, and the temperature changes greatly. This makes winter and spring out of the garden, and the buried and excavated earth is very urgent and difficult, and the labor cost accounts for the entire Annual vine management expenditure costs 1/3-1/2. The traditional plastic bow sheds have certain effects, but the temperature rises quickly in the spring, which causes the temperature in the shed to be too high, reaching a maximum of 40° C., which reduces the germination rate of the grapes. How can we keep both temperature and temperature balance? Carefully, Xie Lirong discovered that flower growers used shade nets to regulate greenhouse temperature, and they made bold attempts and achieved success. Xie Lirong said that with this method, the grape is not afraid of frostbite.
This “creativity†attracted the attention of Li Yuding, a grape cultivation expert in our district, and Zhang Guangdi, a professor of the College of Agriculture of Ningxia University. Professor Zhang Guangdi and Xie Lirong cooperated and conducted a three-year verification test of the “Mechanism and Technology Application of Vine Net Covering Cultivationâ€. The results show that this “creativity†solves the problem of prevention of low temperature and wind damage after unearthing grapes in early spring, and also better solves the stability and suitability of temperature and humidity in the facilities shed, and achieves the coordination of vegetative and reproductive growth of grape plants. , can promote the grape to mention the city for 15 days, increase production 15%, the average yield per mu reached 2400 kilograms, increased production by 850 kilograms than traditional anti-frost.
Ventilation is one of the most important components in a successful greenhouse.
If there is no proper ventilation, greenhouses and their growing plants can become prone to problems. The main purposes of ventilation are to regulate the temperature and humidity to the optimal level, and to ensure movement of air and thus prevent build-up of plant pathogens (such as Botrytis cinerea) that prefer still air conditions. Ventilation also ensures a supply of fresh air for photosynthesis and plant respiration, and may enable important pollinators to access the greenhouse crop.
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