In the scientific research and production of fruit trees, the determination of leaf area is often a task, because the leaf area is an important index to characterize the growth and development of plants, and is also a necessary reference factor for crop cultivation, genetic breeding, etc. Accurately measuring leaf area can effectively save research costs and improve research efficiency. The leaf area meter is a professional instrument for measuring the leaf area index of plants. The instrument can meet the requirements of rapid and accurate measurement of leaf area in modern agricultural production and better conduct scientific research work. In the orchard planting, there is a kind of fruit persimmon, mainly planted in Henan, Shanxi, Shaanxi, Hebei and other places. Persimmon is rich in vitamin A and a small amount of vitamin C. It is a kind of fruit with very high nutritional value and is deeply loved by consumers. In order to cultivate high-quality, high-yielding varieties of persimmons, agricultural researchers need to do a lot of measurement and analysis work, in which the determination of leaf area is indispensable, and through the application of leaf area meter in the determination of persimmon leaf area, researchers can Better mastering the growth characteristics and production potential of different varieties of persimmon trees provides an important reference for the selection of fine varieties. In fact, regardless of the determination of the area of ​​the leaves and fruits in the persimmon, the leaf area meter has a very important application. In the fields of vegetable cultivation, forestry management and flower cultivation, the leaf area meter has very important applications. Although there are many methods for measuring leaf area, such as the checkerboard method, using a leaf area meter to determine the leaf area of ​​a plant is the easiest, quickest and most convenient method. Moreover, with the development of science and technology, the leaf area meter has great progress in terms of technology and convenience, and the portable living leaf area meter has also begun to be applied. It not only harms the studied plants, but also displays and stores in real time. The measurement results are finally transmitted to the computer through the data transmission system for data processing, which satisfies the working needs of modern agricultural research. Rice Mill ,Corn Crushing Machine,Rice Mill Machine,Mini Rice Mill Shuangfeng Nongjiabao Machinery Technology Co., Ltd , https://www.starchmachine.nl