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The oxygen diffusion rate (ODR) is measured by the method of
Question

The oxygen diffusion rate (ODR) is measured by the method of

A.

Neutron scattering

B.

Gamma-ray attenuation

C.

Platinum microelectrode

D.

Thermocouple psychrometer

Correct option is C


Platinum microelectrodes are used to measure Oxygen Diffusion Rate (ODR) in soils. ODR indicates the availability of oxygen for plant roots and microbes. This method is sensitive, fast, and widely applied in soil aeration studies.

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