Simulation system device for continuous determination of rhizosphere priming effect

A technology for simulating systems and effects, which is applied in the field of rhizosphere excitation effect devices, can solve problems such as the diurnal dynamic change of rhizosphere excitation effects, many interference factors, and difficult detection, and achieve strong representativeness, few interference factors, The effect of improving efficiency

Inactive Publication Date: 2013-06-05
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a continuous measurement of rhizosphere excitation effect simulation system device, to solve the current measurement of rhizosphere excitation effect, increase the workload, more interference factors in the cultivation process, large error, low precision, for smaller Differences are difficult to detect and easy to ignore the diurnal dynamics of rhizosphere priming effects

Method used

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  • Simulation system device for continuous determination of rhizosphere priming effect

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specific Embodiment approach 1

[0007] Specific implementation mode 1: Combination figure 1 To illustrate this embodiment, the device of this embodiment includes a cultivation bowl 1, a partition 2, a gas sampling box 3, a growth tube 4, two gas circulation pumps 5, and two gas washing bottles 6. The cultivation bowl 1 has an open upper end. The gas sampling box 3 is an open-bottomed box. The lower mouth of the gas sampling box 3 is connected to the upper mouth of the culture bowl 1, and the partition 2 is set in the empty space formed by the culture bowl 1 and the gas sampling box 3. The chamber is divided into two areas, which are defined as the treatment culture area 7 and the control culture area 8. One end of the growth tube 4 passes through the gas sampling box 3 and is set in the treatment culture area 7, and the gas sampling box 3 is located in the treatment culture area The first air inlet 3-1 and the first air outlet 3-2 are respectively provided at the position 7 and the second air inlet 3-3 and th...

specific Embodiment approach 2

[0008] Specific implementation manner two: combination figure 1 To illustrate this embodiment, the device of this embodiment includes a silica gel strip 9, the gas sampling box 3 and the culture bowl 1 are sealed and connected by a silica gel strip 9, and the silica gel strip uses 704 silica gel. This method facilitates the separation of the gas sampling box 3 and the culture bowl 1. The other embodiments are the same as the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 To describe this embodiment, the first air inlet 3-1 and the first air outlet 3-2 are arranged opposite to each other, and the second air inlet 3-3 and the second air outlet 3-4 are arranged opposite to each other. The root-soil interface of the crop is taken to a large extent to reduce dead angles. Other embodiments are the same as the first embodiment.

[0010] Working principle: Step 1. Use the above-mentioned continuous measurement of rhizosphere stimulation effect simulation system device to cultivate crops;

[0011] Step 2: Prepare the soil that meets the test conditions according to the test requirements, and put it into the culture bowl 1;

[0012] Step 3: Plant the test crops in the growth tube 4;

[0013] Step 4. Cultivate according to the test requirements;

[0014] Step 5. During the measurement period, install the gas sampling box 3 on the culture bowl 2 with 704 silica gel and a sealing strip, fill the gas w...

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Abstract

The invention relates to a simulation system device for continuous determination of a rhizosphere priming effect, in particular to a device for determination of the rhizosphere priming effect. The device solves the problems that in the current determination of the rhizosphere priming effect, the workload is increased, disturbing factors are more in the culture process, the error is large, the accuracy is low, smaller differences are difficult to detect and the daily dynamic change in the rhizosphere priming effect is easily ignored. The simulation system device is characterized in that a gas sampling tank is arranged on a culture bowl and is connected with the culture bowl in a sealing way, and one end of a growth tube penetrates through the gas sampling tank and is arranged in the treatment culture bowl; a first gas inlet and a first gas outlet are respectively arranged in the gas sampling tank positioned in a treatment culture region, and a second gas inlet and a second gas outlet are respectively arranged in the gas sampling tank positioned in a control culture region; the first gas inlet and the second gas inlet are respectively communicated with gas circulating pumps through pipelines, and each gas circulating pump is communicated with a gas washing bottle through a pipeline; and the first gas outlet and the second gas outlet are respectively communicated with the gas washing bottle through pipelines. The simulation system device is used for continuous determination of the rhizosphere priming effect.

Description

Technical field [0001] The invention relates to a device for measuring rhizosphere excitation effect. Background technique [0002] At present, the crop rhizosphere carbon deposition stimulating effect cultivation device used by people is relatively backward, and the determination of crop rhizosphere stimulating effect can only use ordinary isotope pulse labeling cultivation method, which is expensive and cannot well reflect the true rhizosphere excitation Effect, the measurement result of this method is greatly affected by the growth period of the crop, and the measurement result can only be used at a certain point of time to represent a certain growth period. The traditional culture determination method generally uses the crop growing soil, at a certain time, with 13 CO 2 Pulse marking for 4 hours while collecting CO respired from the soil 2 Measure and measure 13 C abundance, and at the same time collect CO respired from the control soil without crops 2 The amount is obtained ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/20G01N1/22
Inventor 苗淑杰乔云发
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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