Soil Microorganisms and Plant Growth

Soil as the natural medium for the growth of plants soil microorganisms the rhizosphere the phyllosphere nitrogen fixation in free-living and associative symbiotic bacteria nitrogen fixation by free-living blue-green algae nitrogen fixation by symbiotic blue-green algae rhizobium and root nodulation nitrogren fixation by nodulated plants other than legumes soil microorganisms and organic matter nitrification and dentrification mircrobial products which influence plant growth soil microorganisms, plants and soil structure soil microorganisms and sulphur, phosphorus and trace element nutrition of plants pesticides, microorganisms and plants mycorrhiza biotechnology in agriculture appendix on media.