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The glomalin produced by arbuscular mycorrhizal fungi has beneficial effects on soils. We studied the vertical profile of glomalin-related soil protein (GRSP) in pasturelands grown under saline soils and exposed to different management practices. Treatments included haying and grazing of Chloris gayana subject to either N-fertilization or not. We measured mycorrhizal colonization, spores, root biomass, total GRSP, GRSP-carbon (GRSP-C), organic carbon (OC)
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dc.contributor.author | Banegas, Natalia Romina | |
dc.contributor.author | Dos Santos, Daniel Andrés | |
dc.contributor.author | Guerrero Molina, Fernanda | |
dc.contributor.author | Albanesi de Garay, Ada Susana | |
dc.contributor.author | Pedraza, Raúl | |
dc.date.accessioned | 2021-10-28T13:45:36Z | |
dc.date.available | 2021-10-28T13:45:36Z | |
dc.date.issued | 2020-10-23 | |
dc.identifier.issn | 0365-0340 | |
dc.identifier.issn | 1476-3567 (online) | |
dc.identifier.other | https://doi.org/10.1080/03650340.2020.1834536 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/10621 | |
dc.identifier.uri | https://www.tandfonline.com/doi/full/10.1080/03650340.2020.1834536 | |
dc.description.abstract | The glomalin produced by arbuscular mycorrhizal fungi has beneficial effects on soils. We studied the vertical profile of glomalin-related soil protein (GRSP) in pasturelands grown under saline soils and exposed to different management practices. Treatments included haying and grazing of Chloris gayana subject to either N-fertilization or not. We measured mycorrhizal colonization, spores, root biomass, total GRSP, GRSP-carbon (GRSP-C), organic carbon (OC) and total nitrogen (TN). In the meanwhile, we also developed a mathematical procedure to fit continuous power functions to binned soil data. Power decay functions adjusted excellently well the measured data across the 1-meter soil profile. Meaningful increases of root biomass, OC, TN, GRSP and GRSP-C values were associated with grazing and fertilization. Particularly, GRSP-C averaged 1,134 kg C ha−1 at the beginning experiments and increased significantly up to 1,261 kg C ha−1 in grazed and fertilized pastures at the end of the study period. Carbon accounted for between 17% and 50% of GRSP, representing in turn 0.52–1.62% of SOC stock. So, a tropical perennial grass can contribute to the carbon stock in saline soils by promoting production of GRSP. This contribution increases when inputs and cycling of nutrients are enhanced (grazing and N-fertilization). | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Taylor & Francis | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.source | Archives of Agronomy and Soil Science (Published online: 23 Oct 2020) | es_AR |
dc.subject | Chloris Gayana | es_AR |
dc.subject | Grasses | eng |
dc.subject | Saline Soils | eng |
dc.subject | Suelo Salino | es_AR |
dc.subject | Gramíneas | |
dc.subject | Carbono Orgánico del Suelo | |
dc.subject | Soil Organic Carbon | eng |
dc.subject | Manejo de Praderas | |
dc.subject | Grassland Management | eng |
dc.subject.other | Total Glomalin | eng |
dc.subject.other | Glomalin-Carbon Content | eng |
dc.subject.other | Tropical Perennial-Grasses | eng |
dc.title | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.description.origen | Instituto de Investigación Animal del Chaco Semiárido | es_AR |
dc.description.fil | Fil: Banegas, Natalia Romina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina | es_AR |
dc.description.fil | Fil: Banegas, Natalia Romina. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina | es_AR |
dc.description.fil | Fil: Dos Santos, Daniel Andrés. Universidad Nacional De Tucumán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto De Biodiversidad Neotropical; Argentina | es_AR |
dc.description.fil | Fil: Guerrero Molina, Fernanda. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina | es_AR |
dc.description.fil | Fil: Albanesi, Ada. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina | es_AR |
dc.description.fil | Fil: Pedraza, Raúl. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina | es_AR |
dc.subtype | cientifico |
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