Role of soil microorganisms

If the only role of soil microorganisms was to provide nitrite from nitrate, they could perhaps be dismissed, at least if one accepts the premise of Bremner and Nelson that whatever its source, nitrite is consumed via interactions with soil... 

Tisdall J. M. (1994) Possible role of soil microorganisms in aggregation in soils. Plant Soil 159, 115-121. 

The role of soil microorganisms in the enhanced degradation of several soil-applied pesticides has been well documented (1-3). 

Gyaneshwar, P., Kumar, C.N., Parekh, E.J. and Poole, P.S. (2002) Role of soil microorganisms in improving P nutrition of plants. Plant and Soil 245, 83-93. 

J. O. Harris, The role of soil microorganisms in corrosion in Proceedings of the 7th Annual Appalachian Underground Corrosion Short Course (Ed. R. E. Hannah Jr), West... 

Fate of Phenolic Allelochemicals in Soils - the Role of Soil and Rhizosphere Microorganisms... 

Adaptation of soil microorganisms for rapid degradation of soil-applied pesticides can occur as a result of the complex interactions between the soil, the pesticide, the microbes, and environmental conditions. The current research addresses the role of breakdown products from the pesticide in the development of the condition. 

Another important relationship between the salts of the soil and corrosion has to do with biological activity. Since the growth of plants and microorganisms depends upon the proper inorganic mineral nutrients, the action of these forms of life varies with the mineral content of the soil. While many of the possible indirect effects, such as the role of various nitrogenous... 

This chapter considers the various types of root products with a potential functional role in the usually tough environment of soil. Only direct effects of immediate benefit to plant growth—e.g., an increase in nutrient solubility—are considered here. Although root products of a plant species may have a direct effect on important groups of soil organisms, such as rhizobia and mycorrhizae. their effect on the plant is not immediate these and aspects related to microbial activity in the rhizosphere are not considered here (see Chaps. 4, 7, and 10). For an extensive and recent review of the microorganisms in the rhizosphere, the reader is referred to Bowen and Rovira (23). 

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