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The role of agricultural temperature and humidity sensors in smart agriculture
With the continuous development and popularization of the Internet of Things technology, the application of Internet of Things sensing and network technologies in the agricultural industry, especially in the field of agricultural equipment, is developing at an extraordinary speed. Smart agriculture is the deep integration of Internet of Things technology and traditional agriculture, the most important of which is sensor technology. Through sensors, it is possible to get rid of the constraints of natural factors such as weather, and realize remote scientific monitoring in fields, such as fields, greenhouses, aquatic products and animal husbandry, and effectively reduce manpower consumption. It can also use scientific analysis to improve the ability of the entire agriculture to resist disasters and increase crop yields. Agricultural sensors have led traditional agricultural production to the road of smart agriculture development that is intelligent, automated and remotely controlled. At present, the commonly used agricultural sensors include illuminance sensors, carbon dioxide sensors, temperature and humidity sensors, etc. The most widely used of which is temperature and humidity sensors, so what is the role of temperature and humidity sensors in smart agriculture? What's the role? 1. Meet crop survival conditionsDifferent types of vegetables, fruit trees, and flowers have different temperature requirements. For example, different types of flowers require different temperatures for flowering: morning glory, cockscomb, impatiens The suitable flowering temperature for flowers is between 25℃ and 30℃, while the suitable flowering temperature for poppies, snapdragons, hollyhock and other flowers is between 15℃ and 25℃. Similarly, different types of crops have different water requirements: drought-tolerant plants have developed root systems, strong water absorption, less leaf evaporation, and less water consumption; wet plants have weak root systems, thin and large leaves. Water evaporative consumption is large, mostly native to tropical and marsh areas; mesophytic plants are not drought-tolerant and flood-tolerant. Different growth periods of similar crops have different requirements for water: seed germination period: a lot of water is needed; seedling growth period: the root system is small, drought resistance is weak, the soil needs to be kept moist, but the humidity should not be too large; the vegetative growth period: water demand Large (including soil water content and air humidity); flowering and fruiting period: low humidity. By monitoring the environmental temperature and humidity and regulating them in time, the growth conditions of various crops can be met in time to make vegetables, fruit trees, flowers and other crops more productive and improve crop economic benefits. Second, improve the absorption capacity of cropsTemperature, especially low ground temperature, will affect the growth and absorption capacity of plant roots. When cucumber is lower than 15℃, the phenomenon of 'flower topping' will occur. The ground temperature is too low, which will affect the plant's absorption of mineral elements. When the low temperature is lower than 12℃, it will affect the plant's absorption of phosphorus. By monitoring the temperature of the environment and the land, the temperature can be adjusted in time to improve the absorption capacity of crops. 3. Promote crop transpiration and photosynthesis A low-humidity environment will cause plant stomata to close and weaken photosynthesis; low humidity and high temperature will aggravate plant transpiration and make plants temporarily or permanently lose water Wilting; high humidity will inhibit plant transpiration and affect root absorption. The temperature and humidity sensor is used to monitor the environmental humidity and adjust it in time to keep the crops in the proper humidity and promote the transpiration and photosynthesis of the crops. Four. Reduce crop diseasesCrop diseases are closely related to temperature. Crop pathogenic microorganisms are the same as other organisms. Their lives and activities have a certain temperature range, which is called the optimum temperature. If the temperature reaches this range, pathogenic microorganisms will move most frequently. Beyond this range, its activities will be reduced, and finally stop activities. High-humidity environment is also conducive to the reproduction of diseased microorganisms. Humidity in the greenhouse is an important cause of disease. Temperature and humidity not only affect the growth and development of pathogenic microorganisms, but also affect the disease resistance of crops. Use the temperature and humidity sensor to monitor the environmental temperature and humidity, and intervene in time to not give the pathogenic microorganisms suitable living conditions, and kill the pathogenic microorganisms in the cradle.
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