Plant Species and Defoliation Efects on Soil Nitrogen Mineralization in a Semiarid Rangeland of Argentina
| cic.isFulltext | true | es |
| cic.isPeerReviewed | true | es |
| cic.lugarDesarrollo | Universidad Nacional del Sur | es |
| cic.version | info:eu-repo/semantics/publishedVersion | es |
| dc.date.accessioned | 2021-10-15T12:59:08Z | |
| dc.date.available | 2021-10-15T12:59:08Z | |
| dc.identifier.uri | https://digital.cic.gba.gob.ar/handle/11746/11335 | |
| dc.title | Plant Species and Defoliation Efects on Soil Nitrogen Mineralization in a Semiarid Rangeland of Argentina | en |
| dc.type | Comunicacion | es |
| dcterms.abstract | The objective of this study was to evaluate the efects of moderate defoliation and grass species on soil nitrogen (N) mineralization in a semiarid grassland of northeastern Patagonia, Argentina. Studied species were Poa ligularis and Nassella tenuis (desirable/preferred by cattle) and Amelichloa ambigua (undesirable/non preferred). Two defoliations were made to a 5 cm stubble height during the growing season. Hypotheses were that (1) net N mineralization and N availability in the soil are increased by a moderate defoliation and greater species forage quality, and (2) potential N mineralization is higher in the soil beneath the desirable than undesirable species. In 2013 and 2014, in situ net N mineralization was estimated using the tube incubation technique under feld conditions. Potential N mineralization was estimated by long-term laboratory incubations. Defoliation treatments did not afect the soil inorganic N dynamics. The soil under A. ambigua showed a greater in situ net N mineralization than other species, but only in 2013. Poa ligularis presented the highest initial inorganic N and potentially mineralizable N values. However, the opposite was recorded in this specie for the mineralization constant rate. These results demonstrated that moderate defoliations did not afect soil N availability, and presence of the desirable perennial grasses increased the potential N mineralization pool. Sustainable management practices that promote the persistence of these species in plant community are important to maintain soil fertility on semiarid grasslands. | en |
| dcterms.creator.author | Ambrosino, Mariela Lis | es |
| dcterms.creator.author | Martínez, Juan Manue | es |
| dcterms.creator.author | Busso, Carlos | es |
| dcterms.creator.author | Minoldo, Gabriela | es |
| dcterms.creator.author | Torres, Yanina Alejandra | es |
| dcterms.creator.author | Ithurrart, Leticia Soledad | es |
| dcterms.creator.author | Cardillo, Daniela Solange | es |
| dcterms.extent | 2511–2517 | es |
| dcterms.identifier.other | doi:10.1007/s42729-021-00542-9 | es |
| dcterms.identifier.other | ISSN:0718-9516 | es |
| dcterms.identifier.other | ISSN:0718-9508 | es |
| dcterms.isPartOf.issue | vol. 21, no. 3 | es |
| dcterms.isPartOf.series | Journal of Soil Science and Plant Nutrition | es |
| dcterms.issued | 2021-08-02 | |
| dcterms.language | Inglés | es |
| dcterms.license | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | es |
| dcterms.subject | Poa ligularis | en |
| dcterms.subject | Nassella tenuis | en |
| dcterms.subject | Amelichloa ambigua | en |
| dcterms.subject | Perennial grasses | en |
| dcterms.subject | Inorganic soil N | en |
| dcterms.subject.materia | Agronomía, reproducción y protección de plantas | es |
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