A plant root bag comprehensive cultivation device for separating and collecting rhizosphere soil

Abstract

The invention discloses a comprehensive plant root bag culture apparatus capable of separating and collecting rhizosphere soil. The comprehensive plant root bag culture apparatus capable of separating and collecting the rhizosphere soil is characterized by comprising a barrel, a net frame is arranged at the bottom of the barrel, a filtering net separating the barrel into an upper soil area and a lower water storage area is disposed on the net frame, a root bag net barrel is arranged on the middle portion of the soil area and separates the soil area into a center chamber and an annular side chamber, a meshed round insert piece or at least two closely attached meshed round insert pieces are closely arranged on the outer side of the net barrel, a water outlet is formed in the barrel in the water storage area, a positioning groove is formed by extending from the water outlet to the sidewall of the above barrel, a transparent water hose with marked scale lines is arranged in the positioning groove, and the lower end port of the water hose is communicated with the water outlet of the barrel. By the aid of the comprehensive plant root bag culture apparatus, separation and collection for soil in different millimeter levels can be realized conveniently and accurately.

Description

technical field [0001] The invention relates to a plant root bag cultivation device, in particular to a plant root bag comprehensive cultivation device used for rhizosphere soil separation and collection. Background technique [0002] The rhizosphere refers to the micro-soil in the range of less than 1 mm to several mm from the root-soil interface, and it is also the place where plants-soil-microbes interact with their environmental conditions. Due to the role of root hairs and root exudates, as well as the strong microbial activities in the rhizosphere, the physical, chemical and biological characteristics of the rhizosphere soil are obviously different from those of the bulk soil. Thus, the nutrient status of a plant's rhizosphere soil is a better indicator of availability to plants than the soil as a whole. Therefore, the nutrient environment and soil microbial activities in the rhizosphere have always been a research hotspot in the field of plant nutrition. A large num...

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Problems solved by technology

However, the root-separating net of this device is not easy to tighten, which brings inconvenience to soil extraction during the disassembly process, and more or less destroys the rhizosphere soil, resulting in large errors.

And the device cannot communicate with the outside air, so that the plant roots cannot obtain the opportunity to absorb nutrients in the air

In addition, the three-chamber root box cultivation device with a square frame has uneven irrigation due to the difference in soil cracks in different root chambers, and because of the closed bottom, users can not only know the water level inside the device, but also when it rains heavily. The excess water cannot be adjusted, and the roots of the plants will rot and die due to excessive water storage, which affects the progress of the test

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