Rhizosphere sampler for sampling rhizosphere soil and sampling method of rhizosphere sampler

Abstract

The invention discloses a rhizosphere sampler for sampling rhizosphere soil and a sampling method of the rhizosphere sampler. The rhizosphere sampler comprises a gas absorbing device and a bracket, wherein the gas absorbing device is arranged at the bottom of the bracket, movable rods and movable bands are arranged on the bracket, and hooks are arranged on the movable rods. The bracket is a telescopic mechanism, and comprises a plurality of telescopic pipes which are mutually sleeved together. The gas absorbing device absorbs the bottom of a planting disk, and is capable of fixing the bracket; and a plant is tied by regulating the positions of the bands on the bracket, so as to be fixed; and then the hooks can be enabled to bear a round pipe in a proper position through regulating the two movable rods on the bracket and round rods thereon. In addition, the telescopic pies used by the rhizosphere sampler can be opened or closed; and the plant root can be firstly placed in soil through the telescopic pipes, and then the telescopic pipes are closed. Therefore, the rhizosphere sampler is convenient to operate, and is capable of quantitatively and accurately obtaining rhizosphere soil. In addition, because a certain amount of micropores are formed in the walls of the telescopic pipes, the situation that normal growth of the plant root in the telescopic pipes is influenced due to oxygen deficiency can be avoided.

Description

technical field [0001] The invention is a soil sampler. In particular, a rhizosphere sampler and a sampling method thereof are used for collecting soil in a small area of ​​the rhizosphere of small plants in a laboratory. Innovative technology belonging to the rhizosphere sampler for collecting rhizosphere soil. Background technique [0002] While the development of today's economy has improved people's living standards, it has also seriously polluted the environment, among which soil pollution is a big problem. In order to control soil pollution, it is necessary to focus on the study of soil. In terms of soil research, an important direction is to explore the remediation effect of plants on polluted soil. And it is the root system of the plant that plays the role of link, so it is very important to accurately extract the soil in the small area of ​​the plant rhizosphere. However, how to accurately extract the rhizosphere soil will be a thorny issue. [0003] At present...

AI Technical Summary

Problems solved by technology

One of the methods is to put a plant root into the round tube, then put the soil into the round tube, then plant it in the planting tray, add soil, and the soil that is taken out of the round tube after cultivation is the rhizosphere soil. This method is easy to cause Plant root hypoxia during cultivation affects the results of the investigation

Another method is to obtain the rhizospheric soil by cutting the soil after planting into multiple equal parts. This method has a complicated process and is difficult to operate, and it is difficult to obtain a quantitative and fixed range of rhizospheric soil.

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