Plant chlorophyll measuring instrument and chlorophyll measuring method

Abstract

The invention discloses a plant chlorophyll measuring instrument and a method thereof, which aims at solving the problems of time consuming, living plant destruction, and the like. The plant chlorophyll measuring instrument consists of a computer, a fiber spectrometer and a measuring probe, wherein, the computer is electrically connected with the fiber spectrometer, and the fiber spectrometer and the measuring probe are connected optically and electrically. The method for measuring plant chlorophyll comprises the following steps: 1) the computer is started up, and the devices are tested at first, if the devices are normal, the fiber spectrometer sends a signal to a laser generator to turn on a laser diode, and the fiber spectrometer starts to collect fluorescence which is excited by laser at the same time; 2) laser radiated from the laser diode of the laser generator radiates on plant leaves directly, and excited fluorescence is received by a fluorescence receive probe and introduced into the computer after being treated by the fiber spectrometer; 3) the computer analyses and processes the introduced data; 4) the computer judges the analyzed and processed result, displays and saves the result which conforms to the reality. The invention is suitable for plant with thin and thick leaves.

Description

technical field [0001] The invention relates to a device for measuring plant chlorophyll and a method for detecting plant chlorophyll, more specifically, it relates to a plant chlorophyll measuring instrument and a method for measuring chlorophyll. Background technique [0002] Nitrogen fertilizer is a component of amino acids in plants, a component of protein, and a component of chlorophyll that plays a decisive role in photosynthesis in plants. Under different nitrogen fertilizer application levels, plant growth status and yield will change. On the premise of ensuring the yield and quality of plants, determining the best fertilization period and the best fertilization amount can not only save fertilizer consumption, but also reduce chemical fertilizer pollution and protect the environment. [0003] At present, the measurement methods for the chlorophyll content and nitrogen content of plant leaves are mainly chemical methods, but this method is not the method people want ...

AI Technical Summary

Problems solved by technology

The existing technology is to use two different wavelengths of light to irradiate the surface of the plant leaf respectively, receive the transmitted light from the other side of the plant leaf, and compare the optical density difference between the transmitted light and the original irradiated light, and then measure the relative content of chlorophyll. This method is more suitable for plants with thinner leaves, and the measurement accuracy will be affected when measuring the chlorophyll content of leaves of thicker plants

Images