CN102301929A

CN102301929A - Plant root system growth chamber applicable to rhizosphere research

Info

Publication number: CN102301929A
Application number: CN201110219309A
Authority: CN
Inventors: 金剑
Original assignee: Northeast Institute of Geography and Agroecology of CAS
Current assignee: Northeast Institute of Geography and Agroecology of CAS
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2012-01-04
Anticipated expiration: 2031-08-02
Also published as: CN102301929B

Abstract

The invention provides a plant root system growth chamber applicable to rhizosphere research, and relates to a growth chamber, which is used for solving the problems that as space of a root box is narrow and small, growth of a root system is limited, and growth and physiological properties of the root system are changed to affect rhizosphere effect in the existing rhizo-box method for collecting rhizosphere soil. The plant root system growth chamber provided by the invention comprises two plates, two strip clips and two glass paper, wherein, the two strip clips are arranged between the twp plates in parallel; the two plates and the two strip clips form a bottomless and uncovered box body; the inner wall of each plate is provided with one glass paper along the length direction; and the lower end of each glass paper extends to the outside of the box body and is embedded into a sand bath. The plant root system growth chamber provided by the invention is used for planting plants on the sand bath and carrying out plant rhizoshpere research.

Description

A kind of plant root growth case that is suitable for rhizosphere research

Technical field

The present invention relates to a kind of growth, be specifically related to a kind of plant root growth case that is suitable for rhizosphere research.

Background technology

Rhizosphere is influenced by the root system of plant activity as a special system in the soil ecosystem; The little territory Tu Qu that on physical chemistry and biological property, is different from the soil body; It is the interface that root system and soil and microbial interaction form; Plant is the leading factor of rhizosphere microecosystem; Different plant root species forms and physiological metabolism feature are different; Even the different genotype of same kind of plant also there are differences; This certainly will produce different rhizosphere effects; This is to the conversion of nutriment in the rhizosphere micro-region, and the validity of soil nutrient and crop growth etc. have direct influence.

In the rhizosphere research field, root case method is a kind of accepting extensively at present and more effective rhizosphere soil collection method.Existing root case method rhizosphere soil collection method root case space is narrow and small, has limited the growth of root system, has changed root growth and physiological property, has influenced rhizosphere effect.

Summary of the invention

The present invention is narrow and small for solving existing root case method rhizosphere soil collection method root case space, has limited the growth of root system, has changed root growth and physiological property, has influenced the problem of rhizosphere effect, and then has proposed a kind of plant root growth case that is suitable for rhizosphere research.

The present invention addresses the above problem the technical scheme of taking to be: the present invention includes two boards, two bar folders and two glassine papers; Two bar folders are set in parallel between the two boards side by side; Two boards and two bars press from both sides the box body that constitutes a no end, uncovered; Every plate inwall is provided with a glassine paper along its length, and the lower end of every glassine paper extends to the box body outside and embeds in the sand-bath.

The invention has the beneficial effects as follows: the present invention can grow in the sand-bath root system of plant through the bottom of box body, and then has discharged the growing space of root system; Sand-bath provides nutrient simultaneously, has avoided plant nutrition to coerce, and has guaranteed the normal unrestraint growth of plant; And the nature of glass can absorb the humidity that moisture guarantees soil in the root case from sand-bath, avoids watering from the root upper box part and causes the soil nutrient leaching.The present invention has guaranteed the normal of plant root growth and physiological property, and has not influenced rhizosphere effect for plant root growth provides bigger growing space.

Description of drawings

Fig. 1 is an overall structure sketch map of the present invention, and the front view of Fig. 2 plate, Fig. 3 are the vertical views of Fig. 2, and Fig. 4 is the front view of bar folder, and Fig. 5 is the vertical view of Fig. 4, and Fig. 6 is the structural representation of glassine paper.

Embodiment

Embodiment one: combine Fig. 1 that this embodiment is described; The said a kind of plant root growth case that is suitable for rhizosphere research of this embodiment comprises two boards 1, two 2 and two glassine papers 4 of bar folder; Two bar folders 2 are set in parallel between the two boards 1 side by side; Two boards 1 and two box bodys 3 that bar folder 2 constitutes a no end, uncovered; Every plate 1 inwall is provided with a glassine paper 4 along its length, and the lower end of every glassine paper 4 extends to box body 3 outsides and embeds in the sand-bath.Bottom with box body 3 in the present embodiment is fixed in the fine sand bath of nutritious liquid supply; Stone or the bead that the thick diameter of 0.5cm is 2mm-3mm put in the bottom of box body 3 evenly pad; Capillarity in order to soil in blocking-up sand and the box body 3; Load the soil that is for experiment in the box body 3 and sow plant; Present embodiment has guaranteed that the root system of plant can grow into by the bottom of box body 3 in the sand-bath; And then discharged the growing space of root system; Simultaneously also avoided plant nutrition to coerce; Guaranteed the normal unrestraint growth of plant; In the present embodiment bottom of glassine paper 4 is imbedded bottom the sand-bath; In order to from sand-bath, to absorb moisture, nutrient entering box body 3 inside; Present embodiment has been avoided watering from box body 3 tops and has been caused the leaching of the intrinsic nutrient in soil Central Plains, and changes soil physical and chemical property.

Embodiment two: combine Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 that this embodiment is described; The long L of every block of plate 1 of the said a kind of plant root growth case that is suitable for rhizosphere research of this embodiment is 15cm; Wide W is 12cm; Thickness H is 0.5cm; The long A of each bar folder 2 is 15cm, and wide B is 1cm, and thickness C is 0.5-1cm; The long D of glassine paper 4 is 20cm, and wide E is 10cm.Other composition and annexation are identical with embodiment one.

Embodiment three: combine Fig. 1 that this embodiment is described, the said a kind of two boards 1 that is suitable for the plant root growth case of rhizosphere research of this embodiment is that 1, two the bar folder 2 of plate by the PVC material is bar folders 2 of being made by PVC.This embodiment has prolonged service life of the present invention.Other composition and annexation are identical with embodiment one or two.

Operation principle

The sand-bath bottom is imbedded in the bottom of glassine paper 4; The fine sand that box body 3 is fixed on nutritious liquid supply is bathed; Stone or the bead that the thick diameter of 0.5cm is 2mm-3mm put in box body 3 bottoms evenly pad; Capillarity in order to soil in blocking-up sand and the box body 3; Prevent the moisture in the bath of soil capillarity fine sand in the box body 3 and supersaturation; The soil that is for experiment is packed in the box body 3; Soil upper surface and box body 3 upper surfaces distance was 2cm after filling finished; Nutrient solution is sneaked in the sand-bath; Adding water makes 2cm-3cm place, sand-bath bottom keep the saturation moisture state; By the time can sow earthing 2cm behind the box body 3 internal upper part ground moistenings.Guarantee that like this root system of plant is grown under the condition that moisture and nutrient suit all the time, and root growth is not subjected to the restriction in space, rhizosphere effect can be given full play to.

Claims

1. one kind is suitable for the plant root growth case that rhizosphere is studied; It is characterized in that: said a kind of plant root growth case that is suitable for rhizosphere research comprises two boards (1), two bar folders (2) and two glassine papers (4); Two bar folders (2) are set in parallel between the two boards (1) side by side; Two boards (1) presss from both sides the box body (3) that (2) constitute a no end, uncovered with two bars; Every block of plate (1) inwall is provided with a glassine paper (4) along its length, and the lower end of every glassine paper (4) extends to box body (3) outside and embeds in the sand-bath.

2. according to the said a kind of plant root growth case that is suitable for rhizosphere research of claim 1; It is characterized in that: the length (L) of every block of plate (1) is 15cm; Wide (W) is 12cm; Thickness (H) is 0.5cm; The length (A) of each bar folder (2) is 15cm, and wide (B) is 1cm, and thickness (C) is 0.5-1cm; The length (D) of glassine paper (4) is 20cm, and wide (E) is 10cm.

3. according to claim 1 or 2 said a kind of plant root growth casees that are suitable for rhizosphere research, it is characterized in that: two boards (1) is the plate (1) by the PVC material, and two bar folders (2) are the bar folders of being made by PVC (2).