Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment
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 gay...
| Autores principales: | , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Taylor & Francis
2021
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/10621 https://www.tandfonline.com/doi/full/10.1080/03650340.2020.1834536 https://doi.org/10.1080/03650340.2020.1834536 |
| _version_ | 1855484623152218112 |
|---|---|
| author | Banegas, Natalia Romina Dos Santos, Daniel Andrés Guerrero Molina, Fernanda Albanesi de Garay, Ada Susana Pedraza, Raúl |
| author_browse | Albanesi de Garay, Ada Susana Banegas, Natalia Romina Dos Santos, Daniel Andrés Guerrero Molina, Fernanda Pedraza, Raúl |
| author_facet | Banegas, Natalia Romina Dos Santos, Daniel Andrés Guerrero Molina, Fernanda Albanesi de Garay, Ada Susana Pedraza, Raúl |
| author_sort | Banegas, Natalia Romina |
| collection | INTA Digital |
| description | 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). |
| format | Artículo |
| id | INTA10621 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Taylor & Francis |
| publisherStr | Taylor & Francis |
| record_format | dspace |
| spelling | INTA106212022-08-12T16:07:51Z Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment Banegas, Natalia Romina Dos Santos, Daniel Andrés Guerrero Molina, Fernanda Albanesi de Garay, Ada Susana Pedraza, Raúl Chloris Gayana Suelo Salino Grasses Saline Soils Soil Organic Carbon Grassland Management Gramíneas Carbono Orgánico del Suelo Manejo de Praderas Total Glomalin Glomalin-Carbon Content Tropical Perennial-Grasses 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). Instituto de Investigación Animal del Chaco Semiárido Fil: Banegas, Natalia Romina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina Fil: Banegas, Natalia Romina. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina Fil: Dos Santos, Daniel Andrés. Universidad Nacional De Tucumán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto De Biodiversidad Neotropical; Argentina Fil: Guerrero Molina, Fernanda. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina Fil: Albanesi, Ada. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina Fil: Pedraza, Raúl. Universidad Nacional De Tucumán. Facultad de Agronomía y Zootecnia; Argentina 2021-10-28T13:45:36Z 2021-10-28T13:45:36Z 2020-10-23 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10621 https://www.tandfonline.com/doi/full/10.1080/03650340.2020.1834536 0365-0340 1476-3567 (online) https://doi.org/10.1080/03650340.2020.1834536 eng info:eu-repo/semantics/restrictedAccess application/pdf Taylor & Francis Archives of Agronomy and Soil Science (Published online: 23 Oct 2020) |
| spellingShingle | Chloris Gayana Suelo Salino Grasses Saline Soils Soil Organic Carbon Grassland Management Gramíneas Carbono Orgánico del Suelo Manejo de Praderas Total Glomalin Glomalin-Carbon Content Tropical Perennial-Grasses Banegas, Natalia Romina Dos Santos, Daniel Andrés Guerrero Molina, Fernanda Albanesi de Garay, Ada Susana Pedraza, Raúl Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title_full | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title_fullStr | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title_full_unstemmed | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title_short | Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| title_sort | glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment |
| topic | Chloris Gayana Suelo Salino Grasses Saline Soils Soil Organic Carbon Grassland Management Gramíneas Carbono Orgánico del Suelo Manejo de Praderas Total Glomalin Glomalin-Carbon Content Tropical Perennial-Grasses |
| url | http://hdl.handle.net/20.500.12123/10621 https://www.tandfonline.com/doi/full/10.1080/03650340.2020.1834536 https://doi.org/10.1080/03650340.2020.1834536 |
| work_keys_str_mv | AT banegasnataliaromina glomalincontributiontosoilorganiccarbonunderdifferentpasturemanagementsinasalinesoilenvironment AT dossantosdanielandres glomalincontributiontosoilorganiccarbonunderdifferentpasturemanagementsinasalinesoilenvironment AT guerreromolinafernanda glomalincontributiontosoilorganiccarbonunderdifferentpasturemanagementsinasalinesoilenvironment AT albanesidegarayadasusana glomalincontributiontosoilorganiccarbonunderdifferentpasturemanagementsinasalinesoilenvironment AT pedrazaraul glomalincontributiontosoilorganiccarbonunderdifferentpasturemanagementsinasalinesoilenvironment |