Upload NowAfter reading this article you will learn about the symbiotic and non-symbiotic nitrogen fixing bacteria. Symbiotic N2-Fixing Bacteria: The heterotrophic bacteria that fix di-nitrogen gas (N2) from the atmosphere in plant root nodules (symbiotic bacteria) have a mutually beneficial relationship with their host plants. Legumes (pod-bearing plants such as peas, beans, alfalfa and clovers etc.) […]
Symbiotic and Non-Symbiotic Nitrogen Fixing Bacteria
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7 Major Conditions Affecting Micro-Organisms in Soil
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This article throws light upon the seven major conditions affecting activities of micro-organisms present in soil. The conditions are: 1. Moisture 2. Soil Reaction 3. Temperature 4. Nutrients 5. Organic Matter 6. Microbial Products 7. Microbial Enemy. Condition # 1. Moisture: Dryness kills many microbes and many micro-organisms develop resistant strains or enter a dormant […]
5 Main Functions of Micro-Organisms in Soil
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This article throws light upon the five main functions of micro-organisms present in soil. 1. Organic matter decomposition (By this process, plant and animal residues are broken down by micro-organisms into more simpler compounds, other slimy compounds, other slimy intermediate products organic acids and more resistant compound humus. All these products combinedly influence the physical […]