Agricultural production is inseparable from the climatic environment, monitoring changes in the environment at all times and accurately grasping the farming season are essential to ensure a good agricultural harvest. In recent years, with the continuous development of modern science and technology, facility agriculture has become an agricultural new industry to solve the above-mentioned key problems.
Facility agriculture is a new form of agricultural production that regulates and controls the environmental conditions of crop production with the help of greenhouses and their supporting devices. It is an effective means of freeing agriculture from natural constraints and is a revolutionary development of conventional agriculture, which is high-yielding, efficient, high-quality and technology-intensive.
Countries such as Israel and the Netherlands, for example, have reached a high level of research and production in facility agriculture. However, in facility agriculture it is extremely important to have access to information in order to regulate the environment in which crops are grown. Among the key technologies involved the means of information acquisition is one of the most important key technologies. Therefore, the development of sensors for facility agriculture with a high performance to price ratio is an urgent priority.
Sensor technology as a development in the new century and the widespread use of sensors in agriculture. In agricultural production, a certain combination of light, heat, water and air from nature is beneficial for a certain production and forms an effective natural resource for agriculture.
Crop production requires the right temperature and humidity, and sensors can collect and control the temperature and humidity parameters in the greenhouse to make it more in line with the needs of crop development. Secondly, sensors can detect the dryness of the soil to guide agricultural irrigation, saving water and ensuring the growth of crops at the same time. Soil testing can generally be carried out using soil sensors.
Photosynthesis is vital for crop growth, so it is essential to control the light level in the greenhouse. Light sensors can be used to control the intensity of artificial light and create a good growing environment. Photosynthesis also requires the involvement of carbon dioxide, so gas sensors can be used to control the concentration of carbon dioxide in the greenhouse to aid crop growth. Biosensors can also be used to detect soil nutrients such as organic matter, pH, nitrogen, phosphorus and potassium, as well as exchangeable calcium and magnesium, to enhance crop yields. This has led to the growing use of sensors in facility agriculture and their importance is coming to the fore.
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