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From the appearance of the foliar hygrometer, the foliar hygrometer adopts a blade-like design, mainly because the shape of the sensor is like a leaf, so it can truly simulate the characteristics of the leaf page and reflect the water loss process on the leaf surface. From a functional point of view, the foliar hygrometer can accurately measure the foliar moisture, and can monitor the trace water or ice crystal residue on the foliage, which has the advantages of high precision, fast response and reliable performance. Therefore, it is very convenient and practical to use the top Yunnong foliar hygrometer for detection.
In addition, there is a certain relationship between the foliar humidity of crops and plant physiological diseases, so the foliar humidity of Topyun Nong is used to measure the foliar humidity of crops, and the growth and development of crops, pest control and so on can also be studied.
To sum up, the typical applications of foliar hygrometer mainly include water-saving agricultural irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid measurement, plant culture, scientific experiments and other fields, and through its prominent application in these fields, it fully reflects the characteristics of science and technology serving agricultural production, and creates important conditions and research data for the rapid and sustainable development of modern agriculture and the improvement of quality. From the selection of optical devices, the leaf area meter can be divided into three categories: photoelectric leaf area meter, leaf area meter and laser leaf area meter; There are many kinds of photosensitive sensor devices, and the performance and performance are different, so each leaf area meter has its own light source characteristics and photosensitors, and also has different measurement accuracy and county parameters. According to whether there is a moving process in the measurement process, it can be divided into mobile and fixed measurement; Mobile measurements can change the position of the blades or change the position of the light source when judging changes in light energy.
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In the current ecological research, the application of instruments is very common, for example, in the determination of the volume water content of the plant leaf surface, the application of the leaf hygrometer will bring a lot of convenience to the research work, and in terms of the significance of the research, the most important role of the use of the leaf hygrometer to determine the volume water content of the plant leaf surface is to understand the growth and development of crops and guide the prevention and control of diseases. The physiological characteristics of the plant itself, clarifying its relationship with the environment, are also the basis of real-time precision agriculture, which will help to improve the scientific and technological level and refinement level of modern agriculture as soon as possible. That is, the physiological characteristics of plants, so it is understandable to study their growth, but it is said that it is used to guide pest control, so it may not be easy for most people to understand.
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It turns out that the volume water content of plant leaf surface is not only a physiological characteristic of plants, but also usually has an important impact on leaf infection, such as during bacterial infection, if the leaf surface is completely wet, it is conducive to pathogen infection. Once the fungus is infected, it will cause damage to the foliar structure, and the influence of wetting performance on the retention of pesticide droplets for pest control and pest control needs to be considered. It can be seen that the measurement of foliar hygrometer can allow ecologists to clearly guide the current state of crops and determine whether they are at risk of infection.
It is easy to understand that the foliar hygrometer is used to study the growth and development of crops, because the foliar hygrometer measures the volumetric water content of plant leaves.
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