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Analog system device for detecting crop rhizosphere respiration and making plant

A technology for simulating systems and crops, applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as waste, neglect, and large errors

Inactive Publication Date: 2008-06-25
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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Problems solved by technology

[0003] The traditional method generally uses a sampling box smaller than the surface area of ​​the pot to measure soil respiration on the soil surface of the pot, and uses a transparent outer box that cannot isolate the interface between the soil and the atmosphere to mark. There are many interference factors during the measurement process, and waste 13 C-CO 2 , the error is large, making some small differences in soil respiration undetectable and partially ignored

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  • Analog system device for detecting crop rhizosphere respiration and making plant

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Embodiment Construction

[0015] The invention is applied in the subject of the National Key Basic Research Development Program (973 Program) (2005CB121101). The present invention was used in the carrying out of the subject, and according to the operation method and steps described in the summary of the invention, the actual detection of planting soybean soil respiration and photosynthetic product distribution was carried out, which was 1.5 times more efficient than the current conventional detection means, and the accuracy was 15% higher. % or more, good results have been achieved.

[0016] The invention has the advantages of simple and convenient operation, high precision and strong practicability. In-depth research on the simulation of the atmosphere-crop-soil carbon cycle is very helpful and has good prospects for promotion.

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Abstract

The invention belongs to an analog system device used to detect crop rhizosphere respiration and mark plant in the agricultural production technical field. The invention, which improves the prior analog system device used to detect crop rhizosphere respiration and mark plant, consists of a PVC pot 2, a transparent outer box 3, a water tank 4, a gas sampling box 6, a sampling plug 7, an isolation pipe 9 and a gas injection plug 10; meanwhile, the invention improves detection precision and increases detection efficiency; moreover, during collecting soil respiration gas sample, the invention can complete <13> C mark on the aboveground part of crop, thereby integrating gas-collecting process and marking process; thus, the invention can finally obtain detection result of high precision to meet the requirements of scientific research better.

Description

technical field [0001] The invention belongs to the technical field of agricultural production. It is a device for detecting crop rhizosphere respiration and marking plant simulation system, which can be widely used in atmosphere-crop-soil simulation system. technical background [0002] A simulation system device for detecting crop rhizosphere respiration and marking plants, which is used to simulate and study crop photosynthesis to fix CO in the atmosphere 2 In crop plants, distribution of rhizosphere respiration and rhizosphere respiration CO 2 A system unit in which the emission flux is integrated. Its main function is to separate the soil from the atmosphere. In the past, people only paid attention to the measurement of soil respiration rate, and did not pay enough attention to crop rhizosphere respiration. The detection methods were backward, with large errors and low precision. Now, with the advancement of science and technology and the increase of greenhouse gase...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N30/00
Inventor 乔云发韩晓增兰志华梁桂荣刘洪家
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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