[Effect of inoculation with Azospirillum spp on forage grasses in highland pastures of the Sierras de Córdoba, Argentian].
A field assay was performed in an impoverished hill grassland of the Sierras of Córdoba, with the objective of evaluating the effects of Azospirillum spp on gramineous plants. Native grasses were inoculated with different strains of Azospirillum lipoferum and Azospirillum brasilense, during two consecutive years. The inoculation effect on yield, nitrogen content and number of Azospirillum spp was evaluated in three annual harvests. The first and the second inoculation increased significantly the diazotroph number of the grasses with respect to the controls. This positive effect on the rhizophere population did not correlate with a significant increase in the forage quantity and quality as was expected.
Kopp
S
S
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, Argentina.
Abril
A
A
D000531:Altitude; D001118:Argentina; D016949:Azospirillum / Q000502:physiology*; D018533:Biomass; D009586:Nitrogen Fixation; D010940:Plant Proteins / Q000032:analysis; D006109:Poaceae / Q000737:chemistry / Q000254:growth & development*; D012988:Soil Microbiology
D010940:Plant Proteins