Services on Demand
Journal
Article
Indicators
Cited by SciELO
Access statistics
Related links
Cited by Google
Similars in SciELO
Similars in Google
Share
Revista Facultad Nacional de Agronomía Medellín
Print version ISSN 0304-2847
Abstract
RAMIREZ GIL, Joaquín Guillermo; OSORNO BEDOYA, Laura; OSORIO VEGA, Nelson Walter and MORALES OSORIO, Juan Gonzalo. Microbiological Alternatives for the Improvement of Cowpea Growth. Rev. Fac. Nac. Agron. Medellín [online]. 2013, vol.66, n.2, pp.7035-7044. ISSN 0304-2847.
The low phosphorus (P) availability in soil, absorption inefficiency and high costs of phosphate fertilization are limiting factors for agricultural productivity. A biotechnological alternative is the use of soil microorganisms, capable of improving P disponibility, absorption and the use of fertilizer cheaper as rock phosphate fertilization (PR). This experiment was performed under screen house conditions aiming to evaluate the effect of an arbuscular-mycorrhizal fungus (HMA) (Glomus fasciculatum) and a P solubilizing fungus (MSP) (Mortierella sp.) on P uptake and cowpea (Vigna unguiculata L. Walp.) growth, planted with three concentrations (0, 100 and 300 mg of P per each kg of soil) of PR. A significant increase (P-≤0.05) in dry mass, plant height, mean stem diameter and foliar phosphorus, was observed in the HMA-inoculated plants compared with the HMA-non inoculated plants. No significant differences were identified when PR was added or MSP was inoculated. The results suggest that the use of HMA may improve P absorption and cowpea growth under the evaluated conditions.
Keywords : Glomus fasciculatum; Mortierella sp.; Vigna unguiculata; microorganisms.