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Beneficial Soil Microorganisms: A Key for Sustainable Agriculture

M. Aragno

Professor, Institute of Botany, University of Neuchatel, PO Box 2, CH-2007 Neuchatel, Switzerland


Full Paper (PDF File: 22KB)



Abstract


Microorganisms play a major role in the plant-soil relationship, particularly in the rhizosphere, i.e. the interface between root and soil. Rhizosphere is strongly influenced by the root, through its productions (rhizodeposition) and its respiration, as well as uptake of ions and minerals. In this environment, plant beneficial microorganisms are of peculiar importance: they stimulate plant growth, help mineral nutrition and water uptake, fix nitrogen, protect plants against parasites, and may interact positively between themselves (e.g. bacteria / mycorrhiza interactions). Selection of active strains and development of soil management practices should be combined to help improving crop production in a sustainable manner.