Protozoa in Soil

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Soil Microbiology Nature of Soil Soil Habitats (Lithosphere) Microorganisms in Soil Decomposition of Organic Matter in Soil Bacteria in Soil Physiological Types of Bacteria in Different Soils Fungi in Soil Protozoa in Soil Algae in Soil Viruses in Soil Functions of Microorganisms in Soil Humus Functions of Humus Cycles of Elements Carbon Cycle Nitrogen Cycle

Protozoa in Soil

	Protozoa in Soil - Many types of Protozoa are found in the soil, but flagellates and amoebae usually outnumber the ciliates. Their total numbers may range from a few hundred to several thousands. Depending upon the conditions of the soil the Protozoa may exist as vegetative or cyst forms.
They use decaying organic matter for food and consume both dead and living bacteria. Since Protozoa do not injest all bacteria, they maintain some equilibrium of the bacterial flora of the soil.

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Sulphur Cycle Ammonification in Soil Nitrification in Soil Nitrate Reduction in Soil Denitrification in Soil Nitrogen Fixation Symbiotic Nitrogen Fixation Rhizobium Specificity of Bacteria and Legumes Non-Symbiotic Nitrogen Fixation Non-symbiotic Nitrogen Fixing Microorganisms Mechanism of Nitrogen Fixation Oxidation of Sulphur and Sulphur Compounds by Bacteria