Method for measuring plant rhizosphere respiration

A technology of plant root and respiration rate, which is applied in the field of measuring plant rhizosphere respiration, can solve the problems of large measurement error and inaccurate measurement data, and achieve the effect of improving efficiency

Inactive Publication Date: 2010-01-20
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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Problems solved by technology

[0003] The present invention provides a method for measuring plant rhizosphere respiration in order to solve the problems of large measurement error and inaccurate measurement data existing in the existing method for measuring plant rhizosphere soil respiration

Method used

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Embodiment Construction

[0007] The specific method of measuring plant rhizosphere respiration is realized according to the following steps: 1. Preliminary preparation: Mili-Q water is used throughout the test process, and a balance solution is configured. The balance solution is composed of 800 μM CaCl 2 and 5 μM H 3 BO 4 2. Cultivation of crops: put soil in the cultivation pot, leave 3-4cm unfilled soil on the top of the cultivation pot; divide the cultivation pot with soil into two parts, one part is planted with crops, and the other is Part of the crops are not planted, and as a control, they are placed in the solar greenhouse for cultivation; 3. Environmental adaptation: When the crops grow to the experimental design period, move all the cultivation pots cultivated in step 2 from the solar greenhouse to the indoor artificial climate chamber, and cultivate them for 24 hours . 4. Collection of root system: Select 3 pots of destructive sampling from the cultivation pot of planting crops, try to us...

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Abstract

A method for measuring plant rhizosphere respiration relates to a method for measuring plant rhizosphere respiration speed. The method solves the problems that the existing method for measuring plant rhizosphere soil respiration has big measuring error and inaccurate measuring data. The invention improves the traditional method for measuring rhizosphere respiration, and mainly adopts the rhizosphere respiration theory: R rhizosphere=R soil-R soil body-R root system; determination of the soil respiration comprises soil body respiration, rhizosphere respiration and root system respiration; the rhizosphere respiration is indirectly measured by measuring soil respiration, soil body respiration and root system respiration; in the measuring process, the rhizosphere respiration process and the measurement are integrated into one whole body so as to increase the accuracy of measurement, thus obtaining rhizosphere respiration speed with high precision and increasing working efficiency; at the moment, the method is the most feasible effective approach. The method is simple and easy to operate.

Description

technical field [0001] The invention relates to a method for measuring plant rhizosphere respiration. Background technique [0002] The rhizosphere is the 2mm soil around the plant root system, and the rhizosphere is greatly affected by root exudates, and many physical and chemical changes occur. Rhizosphere respiration plays an important role in the study of soil carbon cycle in farmland. In the past, there were few studies on rhizosphere respiration, the detection methods were backward, and the measurement accuracy was extremely low. Now, with the advancement of science and technology, people realize the importance of soil respiration in the rhizosphere of plants, which determines how plants make full use of nutrients, the ability to adapt to the environment, and also determines the growth of plants. Therefore, researchers at home and abroad in the field of farmland soil carbon cycle science attach great importance to the study of plant rhizosphere soil respiration. Rhi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 韩晓增乔云发苗淑杰
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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