Two Researches on Plant Leaves
The size of plant leaves and the amount of chlorophyll in the leaves are the focus of regular research in our agricultural sector. The amount of chlorophyll is related to the photosynthesis of the crop. Photosynthesis is the process of accumulating organic matter. Therefore, if we want to study the photosynthesis of the crop, we must determine the chlorophyll content of the plant leaf. Because of this, the chlorophyll content of plants is closely related to crop yield. The leaf area of ​​plants is related to the leaf area index. The leaf area index is the ratio of the total area of ​​a piece of ground crop leaves to the floor area. Within a certain range, the crop yield increases with the leaf area index. Therefore, for crop yield, leaf area and chlorophyll content are two very key factors.
Determination of plant chlorophyll content: Determination of chlorophyll content spectrophotometry, handheld chlorophyll meter. In general, in the wild, we use instruments to quickly determine the chlorophyll content of plants. Holding the chlorophyll meter is our first choice. The handheld chlorophyll meter is compact and can be placed directly in the pocket and taken to the field. A handheld chlorophyll meter can determine the relative chlorophyll content or greenness of a plant. The principle of the chlorophyll meter is to determine the chlorophyll content by measuring the transmissivity of the leaf in two wavelength ranges. In addition, the chlorophyll meter has a function that can not only determine the chlorophyll content data we need, but also provide guidance on nitrogen fertilizers. According to research statistics, through the measurement of the handheld chlorophyll meter, we can guide our actual fertilization, and we can reduce the amount of nitrogen fertilizer by 10% and greatly increase the economic benefits without increasing the yield.
Determination of leaf area of ​​plants: There are several methods for determining the leaf area of ​​plants: number grid method, scanner method, digital camera method, and leaf area meter method. Among them, the leaf area meter is the simplest and most convenient. The leaf area meter has a variety of styles, of which the live leaf area meter is the most accurate, but it will cause damage to the leaf. It requires you to take off the leaf and then measure it, but it does not require the size, color, thickness, etc. of the leaf. Can determine the size of leaf area such as banana leaf. The leaf area meter is also widely used in agriculture because of its practicality, convenient measurement and high accuracy. In general, the grid method is time-consuming and error-prone, and is now basically eliminated. In addition, the leaf area meter measures very fast, as long as you lay the leaves on the plate, and the result can be achieved in 2 seconds. Suitable for multi-lobe assays.
Machining Stainless steel is the use of CNC machining out, including drilling, boring, cutting, turning, screw, etc.. Machining stainless steel commonly used materials: sus303304316.stainless steel has a very high hardness after machining, easy deformation, so in the process of rough machining to eliminate stress, and then finished. Surface treatment is generally passivation, we have specialized laboratories to test products, and ensure that each size to meet the requirements of the drawings, including the machining stainless steel application in various industries: automobile, ship, crane, medical equipment, industrial automation equipment.
Of course,we also accept the custom machining,welcome to contact us.
Machining Stainless Steel,High Precision Machining Stainless Steel,Cnc Machining Stainless Steel,Stainless Steel Machining,Steel Machining
Hong Kong RYH CO., LTD , https://www.cncmachiningpart.com