Upload NowIn this article we will discuss about:- 1. Composition of Soil Air 2. Factors Affecting the Composition of Soil Air 3. Gaseous Exchange between Soil and Atmosphere 4. Soil Aeration. The volume of the soil that is not occupied by soil particles is known as ‘Pore Space’. The pore space is usually occupied by air […]
Soil Air: Composition and Factors | Soil Science
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Composition of Soil Air: 3 Factors
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This article throws light upon the three main factors affecting the composition of soil air. The factors are: 1. Oxygen 2. Carbon Dioxide 3. Water Vapour. Factor # 1. Oxygen: The amount of O2 in soil air is much less than that of the atmospheric air. Plant roots and different micro-organisms require O2 for their […]
Measuring Oxygen Diffusion Rate (ODR)
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After reading this article you will learn about the principles and Ficks’s law for measuring Oxygen Diffusion Rate (ODR). Principles of Measuring Oxygen Diffusion Rate (ODR): When a certain electric potential is applied between a platinum electrode inserted into the soil and a reference electrode, oxygen (O2) is reduced at the platinum electrode surface. The […]