As one of the main interfaces between the plant ecosystem and the atmosphere, leaves are subject to long-term or short-term fluctuations under the influence of external environmental conditions such as light, temperature, moisture, and nutrients, which have a certain impact on the inter-leafed organisms and guide agriculture. Both production and promotion of ecological development are of great significance. Its research has gradually become an international hotspot in recent years. The leaf area size is closely related to the photosynthesis and the leaf area index of the plant, allowing us to better understand the traits of the plant. Leaf area is also closely related to dry matter yield and above-ground net primary productivity, reflecting the adaptation strategies of the plant to its external factors such as geographical distribution and nutrient conditions. Thixotropic agent is a highly effective mineral rheological agent, which can be used with cellulose ether to improve the constructibility and resistance to flow in polymer mortar products. When added to the Resin, it can make the resin glue liquid have a higher consistency at rest and become a fluid substance of low consistency under the action of external force.
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In the past, there have been a large number of reports on leaf area determination methods. The traditional methods of measurement are mostly ex vivo measurements, which cause damage to the leaves to some extent, and the process is time-consuming and the equipment is generally expensive. In recent years, some scholars have also carried out a lot of research on leaf area non-destructive testing. However, most of these studies use image processing software to perform measurements, involve more complicated processing steps, and are not conducive to the promotion and application of measurement methods. Therefore, the time-saving, convenient, accurate, and non-destructive leaf area determination method is more in line with the needs of future research work. A large number of studies have shown that leaf length, leaf width, leaf weight and leaf petiole length are all significantly related to leaf area, which provides the possibility for the non-destructive determination of leaf area. Through the model fitting, a non-destructive method for leaf area determination suitable for field measurements can be established to achieve continuous measurement of the same leaf, and to promote dynamic research on leaf growth, development, etc., especially for plants with low plant density. The portable leaf area meter and live leaf area meter are the main instruments for measuring the leaf area, and they are also the two most popular instruments in the current leaf area measurement market.
The live leaf area meter is very convenient when determining the leaf area. It does not require any size, color, moisture content, etc., and can measure any size leaf. If the banana leaf is a relatively large plant leaf around us, the general measurement method cannot be measured or the measurement accuracy is very low. The live leaf area meter can easily solve this problem. There are two ways of measuring living leaf area meters: manual methods and automatic methods. In the automatic mode, the value of the area measurement can be obtained by directly closing the light emitting board cover. The live leaf area meter is the most widely used instrument in the leaf area meter, but the price of the instrument is higher than other leaf area meters. The portable leaf area meter is relatively low-priced, easy to use and portable. However, the biggest drawback of the portable leaf area meter is that the accuracy is not high. If the measurement requires only a rough estimation of the blade area, we can choose a portable leaf area meter.
The leaf area is one of the most widely used indicators in plant research. Its universality and importance make it increasingly valuable for research. Therefore, there is a long history of research on the precise determination and rapid determination of leaf area. The relevant scientific instruments for measuring the leaf area also have the opportunity to show off their abilities.