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| Titel: |
Influence of P Fertilization on Biological Nitrogen Fixation in Herbaceous Legumes Grown in Acid Savannah Soils from the Tabasco State, Mexico |
| Auteur: |
Vera-Nunez, J. A. Infante-Santiago, J. P. Velasco, V. Velasco Garcia, S. Salgado Palma-Lopez, D. J. Grageda-Cabrera, O. A. Cardenas, R. Pena-Cabriales, J. J. |
| Verschenen in: |
Journal of sustainable agriculture |
| Paginering: | Jaargang 31 (2008) nr. 3 pagina's 25-42 |
| Jaar: |
2008-02-12 |
| Inhoud: |
gThe use of leguminous plants in the agricultural systems of the humid tropics is an alternative means for providing N to soils considered unfertile and marginal. The objective of this study was to assess the biological nitrogen fixation (BNF) in the symbiosis Rhizobia-herbaceous legumes (Mucuna deeringiana, Canavalia ensiformis, Vigna umbellata, Cajanus cajan, Dolichos lablab, Arachis pintoi and Crotala-riajuncea) grown in acid soil amended with P fertilizer by the 15N-isoto-pic dilution technique (“A”-value) using maize, Brachiaria spp. and no nodulating common bean as reference crops. Results indicate a positive effect of P-fertilizer on parameters associated with BNF and biomass accumulation. The legumes Cajanus cajan and Canavalia ensiformis showed good performance in terms of dry weight of nodules (C. cajan = 758 and C ensiformis = 500 mg nodules plant-1 with 49 and 56 nodules plant-1, respectively) at flowering stage, and BNF (C. cajan = 170 and C ensiformis = 366 kg N ha-1 cycle-1) when 80 kg P205 ha-1 was applied to soil. Maize 'VS-486' and 'VS-536' and non-nodulating common bean 'DOR 364' were adequate reference crops to estimate the N derived from the atmosphere by the legume species. The results indicate that C ensiformis and C cajan have a good potential to be used as green manure in the Huimanguillo savannah, Tabasco State, Mexico. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 10 gevonden artikelen
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