Ion flow velocity detection method and system based on ion absorption kinetics

Abstract

The invention provides an ion flow velocity detection method and system based on ion absorption kinetics. The method comprises the following steps of: fixing a root system of a target plant in a culture dish containing depletion liquid; arranging an electrode tip of a glass microelectrode near a target detection position; acquiring real-time voltage data measured by the microelectrode in a preset time period; measuring root system parameters of the target plant; and determining the net absorption rate of the target plant according to the real-time voltage data and the root system parameters. The ion flow velocity detection method and system based on ion absorption kinetics provided by the invention are a method for detecting the external ion absorption / efflux flow velocity of a plant root system by taking an ion selective electrode method as a means and on the basis of plant ion absorption kinetics, and on the premise of not consuming a large amount of manpower, the method can nondestructively detect the specific ion absorption speed of a single plant or a small-group plant, assists researchers in evaluating the growth state and nutrient absorption characteristics of crops, and improves the detection efficiency.

Description

technical field [0001] The invention relates to the technical field of intelligent detection, in particular to an ion flow velocity detection method and system based on ion absorption kinetics. Background technique [0002] Inorganic ions are a necessary condition for maintaining the normal growth of crops, and they are also important components of crop plants. Detecting the absorption and transport of inorganic ions by crops can reveal the nutrient absorption mechanism of crops, assist in the selection of varieties, and provide a basis for rational fertilization of crops. [0003] At present, the detection methods of ion information of crops mainly rely on atomic spectroscopy, mass spectrometry, chromatography and electrochemical methods. By detecting the concentration of inorganic ions in the plant itself or in the environment, the plant's absorption of ions can be judged. With the deepening of scientific research in fields such as crop nutrition, scientists have begun t...

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Problems solved by technology

Sampling needs to be done at regular intervals and lasts for more than 24 hours. Usually, the staff is labor-intensive and time-consuming, which is very inconvenient.

In order to obtain relatively complete dynamic characteristic parameters, it is necessary to extend the sampling time or shorten the interval, which consumes a lot of manpower and is prone to errors

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