Journal
SOIL BIOLOGY & BIOCHEMISTRY
Volume 38, Issue 12, Pages 3502-3505Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.soilbio.2006.05.008
Keywords
phosphate-solubilizing bacteria; Pseudomonas; rhizobia; nitrogen fixation; co-inoculation
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Allfalfa and soybean are the most important leguminous plants in the agricultural system of the semiarid pampas of Argentina. The possible action of phosphate solubilizing bacteria on the leguminous-rhizobia symbiosis was studied since in this region the available phosphorus distribution is not uniform. The strains used were Sinorhizobium meliloti 3DOh13, a good solubilizer of iron and phosphorus for alfalfa, Bradyrhizobium japonicum TIIIB for soybean and two phosphorus-solubilizing strains of Pseudomonas putida (SP21 and SP22) for growth promotion treatments. Modification of shoot and root system dry weights occured in soybean but not in alfalfa in presence of Pseudomonas strains. (c) 2006 Published by Elsevier Ltd.
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