High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration
The objective of the study was to evaluate the effect of a change in management on the soil microbial community and C sequestration. We conducted a 3-year field study in La Pampa (Argentina) with rotation of sorghum (Sorghum bicolor) in zero tillage alternating with rye (Secale cereale) and vetch (V...
| Main Authors: | , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1086 http://ac.els-cdn.com/S2351989416300117/1-s2.0-S2351989416300117-main.pdf?_tid=bf0879b8-8e4d-11e7-a898-00000aab0f02&acdnat=1504185202_3e90601982194b60b434c6ed5a2644ac https://doi.org/10.1016/j.gecco.2016.03.009 |
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| author | Frasier, Ileana Noellemeyer, Elke Figuerola, Eva Lucia Margarita Erijman, Leonardo Permingeat, Hugo Quiroga, Alberto Raul |
| author_browse | Erijman, Leonardo Figuerola, Eva Lucia Margarita Frasier, Ileana Noellemeyer, Elke Permingeat, Hugo Quiroga, Alberto Raul |
| author_facet | Frasier, Ileana Noellemeyer, Elke Figuerola, Eva Lucia Margarita Erijman, Leonardo Permingeat, Hugo Quiroga, Alberto Raul |
| author_sort | Frasier, Ileana |
| collection | INTA Digital |
| description | The objective of the study was to evaluate the effect of a change in management on the soil microbial community and C sequestration. We conducted a 3-year field study in La Pampa (Argentina) with rotation of sorghum (Sorghum bicolor) in zero tillage alternating with rye (Secale cereale) and vetch (Vicia villosa ssp. dasycarpa). Soil was sampled once a year at two depths. Soil organic matter fractions, dissolved organic matter, microbial biomass (MBC) and community composition (DNA extraction, qPCR, and phospholipid FAME profiles) were determined. Litter, aerial- and root biomass were collected and all material was analyzed for C and N. Results showed a rapid response of microbial biomass to a bacterial dominance independent of residue quality. Vetch had the highest diversity index, while the fertilized treatment had the lowest one. Vetch–sorghum rotation with high N mineralization rates and diverse microbial community sequestered more C and N in stable soil organic matter fractions than no-till sorghum alone or with rye, which had lower N turnover rates. These results reaffirm the importance of enhanced soil biodiversity for maintaining soil ecosystem functioning and services. The supply of high amounts of N-rich residues as provided by grass–legume cover crops could fulfill this objective. |
| format | info:eu-repo/semantics/article |
| id | INTA1086 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA10862018-02-23T17:50:49Z High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration Frasier, Ileana Noellemeyer, Elke Figuerola, Eva Lucia Margarita Erijman, Leonardo Permingeat, Hugo Quiroga, Alberto Raul Plantas de Cobertura Nitrógeno Carbón Ecología Microbiana Cover Plants Nitrogen Coil Microbial Ecology Cultivos de Cobertura The objective of the study was to evaluate the effect of a change in management on the soil microbial community and C sequestration. We conducted a 3-year field study in La Pampa (Argentina) with rotation of sorghum (Sorghum bicolor) in zero tillage alternating with rye (Secale cereale) and vetch (Vicia villosa ssp. dasycarpa). Soil was sampled once a year at two depths. Soil organic matter fractions, dissolved organic matter, microbial biomass (MBC) and community composition (DNA extraction, qPCR, and phospholipid FAME profiles) were determined. Litter, aerial- and root biomass were collected and all material was analyzed for C and N. Results showed a rapid response of microbial biomass to a bacterial dominance independent of residue quality. Vetch had the highest diversity index, while the fertilized treatment had the lowest one. Vetch–sorghum rotation with high N mineralization rates and diverse microbial community sequestered more C and N in stable soil organic matter fractions than no-till sorghum alone or with rye, which had lower N turnover rates. These results reaffirm the importance of enhanced soil biodiversity for maintaining soil ecosystem functioning and services. The supply of high amounts of N-rich residues as provided by grass–legume cover crops could fulfill this objective. EEA Anguil Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Figuerola, Eva Lucia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina Fil: Erijman, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina Fil: Permingeat, Hugo. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina 2017-08-31T12:15:55Z 2017-08-31T12:15:55Z 2016 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:ar-repo/semantics/artículo http://hdl.handle.net/20.500.12123/1086 http://ac.els-cdn.com/S2351989416300117/1-s2.0-S2351989416300117-main.pdf?_tid=bf0879b8-8e4d-11e7-a898-00000aab0f02&acdnat=1504185202_3e90601982194b60b434c6ed5a2644ac 2351-9894 (Online) https://doi.org/10.1016/j.gecco.2016.03.009 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Global ecology and conservation 6 : 242-256. (April 2016) |
| spellingShingle | Plantas de Cobertura Nitrógeno Carbón Ecología Microbiana Cover Plants Nitrogen Coil Microbial Ecology Cultivos de Cobertura Frasier, Ileana Noellemeyer, Elke Figuerola, Eva Lucia Margarita Erijman, Leonardo Permingeat, Hugo Quiroga, Alberto Raul High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title | High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title_full | High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title_fullStr | High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title_full_unstemmed | High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title_short | High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration |
| title_sort | high quality residues from cover crops favor changes in microbial community and enhance c and n sequestration |
| topic | Plantas de Cobertura Nitrógeno Carbón Ecología Microbiana Cover Plants Nitrogen Coil Microbial Ecology Cultivos de Cobertura |
| url | http://hdl.handle.net/20.500.12123/1086 http://ac.els-cdn.com/S2351989416300117/1-s2.0-S2351989416300117-main.pdf?_tid=bf0879b8-8e4d-11e7-a898-00000aab0f02&acdnat=1504185202_3e90601982194b60b434c6ed5a2644ac https://doi.org/10.1016/j.gecco.2016.03.009 |
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