Chlorophyll is the basic unit of photosynthesis for plants, so the chlorophyll content of plants is very important for growth. In modern agricultural production, we use chlorophyll analyzer to measure chlorophyll content in order to promote the growth of crops. TYS series chlorophyll analyzer is widely used in China. The instrument can measure the relative chlorophyll content (SPAD) or green degree and leaf surface temperature of the plant in real time, so as to solve the real nitro requirement of the plant and understand the nitro group of the soil. Lack of degree or excessive application of nitrogen fertilizer.

The measuring principle of chlorophyll meter is based on the absorption of the chloroplast pigment extract to the visible spectrum. The spectrophotometer can be used to determine the absorbance at a specific wavelength. The formula can be used to calculate the content of each pigment in the extract. According to Lambert-Beer's law, the absorbance A of a colored solution is proportional to the concentration of solute C and the thickness L of the liquid layer, ie, A=αCL where: α proportionality constant. When the solution concentration is in percent concentration, and the liquid layer thickness is 1 cm, α is the absorption coefficient of the material. Absorption coefficients of various colored material solutions at different wavelengths can be obtained by measuring the absorbance of known substances at different wavelengths. If there are several kinds of light-absorbing substances in the solution, the total absorbance of the mixed liquid at a certain wavelength is equal to the sum of the absorbances of the respective components at the corresponding wavelengths. This is the sum of absorbance. To determine the content of chlorophyll a, b, and carotenoids in chlorophyll pigment extracts, the absorbance A of the extract at three specific wavelengths is determined, and the chlorophyll a, b, and carotenoids are at this wavelength. The light absorption coefficient can be found its concentration. In the determination of chlorophyll a, b, in order to exclude the interference of carotenoids, the wavelength of the monochromatic light used is selected as the maximum absorption peak of chlorophyll in the red region.

TYS series chlorophyll analyzer comes with a USB interface, which can be connected to the computer to export the measured data to facilitate the management and analysis of plant nutrients. And comes with a USB interface, you can connect to the computer to export the measured data to facilitate the management and analysis of plant nutrients. Through a large number of customer feedback, the instrument proved to be indispensable for improving agricultural production.

Electric motorcycles will not discharge toxic gases, causing air pollution, which is compared to cars and other means of transport the first major advantages. Some people may say that the battery with bad, it will cause pollution, this view is not realistic. Because now there is a battery repair technology, can quickly repair the old battery, the old battery can still buy and sell money, and can achieve the unified management and disposal of used batteries, so electric motorcycles will not pollute the environment green traffic tool.

Electric Motorcycle

Electric Motorcycle,Adult Electric Motorcycle,Electric Motor Motorcycle,Trunk Electric Motorcycle

QuZhou Benneng Vehicle Co.,LTD , https://www.cn-ebikes.com