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In the past, we used the traditional method of measuring the length, width, and post-imprinting weighing or quadrature conversion of the metering blade, which is not only time-consuming and accurate. In recent years, the company has been able to save cotton area data on site and store 2,000 data at one time. The leaf area meter can measure the leaf area, average leaf area, night length, leaf width, and long section ratio of the cotton leaf surface, and the data can be imported into the computer.
The change of cotton leaf area is also related to the dry matter weight of each plant. The dry weight of single plant has grown rapidly since the flowering of cotton. The dry weight per plant was consistent with the time-varying trend of the leaf area per plant. That is to say, the leaf area per plant is increased, and the dry weight per plant is also relatively increased.
There are many ways to determine the number of pages per plant of cotton. The use of dot boards and perforation weighing methods, although high accuracy, suitable for indoor, but also to retrieve the leaves of the whole plant, the process is cumbersome, and the speed is slow, only applicable to the research unit . The use of the long-width coefficient method and the deblade tip method must also be measured field by tree from leaf to leaf. The work schedule is particularly slow when it takes time and labor, and the standard is difficult to master. The workload is large when calculated. Improper method of measurement will appear. Big error. The leaf area meter can measure the leaf area and related parameters of the cotton leaf accurately, quickly and without damage, and can also measure the area of ​​the cotton leaf and other sheet objects picked. The leaf area meter uses the plate to measure the page instead of using the stretching method. The measurement speed is faster and the result can be obtained in 1 second.
The leaf area meter is a convenient and portable detection instrument. The instrument will not damage the leaf area and will not affect the plant growth. The leaf area meter is also called the leaf area detector, in addition to measuring the plant area. , It is also a good instrument to obtain the aspect ratio and perimeter. The instrument will automatically save the measurement results.
How to measure cotton leaf area with leaf area meter
Cotton leaf is an irregular shaped leaves, when the need to measure this type of leaf area, we need to adopt a certain measure instrument, after scientists found that leaf area meter can be measured in any shape, size, thickness of the blade, Of course, there are other methods besides the leaf area meter. Let's take a look.