A root box experimental device for the study of plant rhizosphere environment

Abstract

The invention discloses a root box experiment device for plant root environment research. The device comprises a front baffle, a rear baffle, a U-shaped root separating plate, a nylon net, a soil water collecting pipe, a water-holding base, a fastening screw, an air vent and a water inlet, wherein the nylon net is attached to the surface of the U-shaped root separating plate; the U-shaped root separating plate and the nylon net are located between the front baffle and the rear baffle and are fixed by the fastening screw; a soil water collecting hole is formed at a lateral edge of the U-shaped root separating plate; the water-holding base is located at the bottom. According to the invention, each separating plate and the water-holding base of the root box experiment device both are detachable and reusable, so that the technical problem of collecting the soil sample and soil water sample in the plant root environment research can be solved; a collecting method for millimeter-scale root tiny-region soil and soil water in different regions can be further simplified and accurate; the research on differential characteristics on different positions of the root system of the crop is benefited; the further accurate research on the root soil interface behavior is benefited.

Description

technical field [0001] The invention relates to the technical field of root box experimental devices, in particular to a root box experimental device used for the research of plant rhizosphere environment. Background technique [0002] The rhizosphere is an important area for the exchange of nutrients and energy between plant roots and soil. It is the most active place for soil microorganisms. It is a specific area that is affected by the growth of crop roots and at the same time affects the absorption and operation of crop nutrients. Organic acids, sugars, enzymes and other substances secreted by roots are dissolved in soil water and strongly affect the occurrence, migration, transformation process and law of organic and heavy metal pollutants in the soil. Therefore, the rhizosphere micro-domain has always been one of the focuses of multidisciplinary research at home and abroad, such as soil science, plant nutrition, agronomy, and environmental science. [0003] There have...

AI Technical Summary

Problems solved by technology

The traditional method is mainly to take out the soil and centrifuge, but this will destroy the state of the soil, and it is impossible to sample during the plant growth period

Some scholars or institutions also use soil water samplers to take soil water samples, but there are few reports on the combination of rhizosphere and non-rhizosphere soil and soil water.

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