Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil
The inclusion of tropical grass forage as a cover crop (CC) could be a useful tool to improve microbiological activity and, consequently, soil quality. The aim of this study was to evaluate the effect of Brachiaria brizantha cv. Mulato and maize (Zea mays) as CC on soil microbial communities and the...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/3620 https://www.sciencedirect.com/science/article/pii/S1164556317302972?via%3Dihub https://doi.org/10.1016/j.ejsobi.2017.10.009 |
| _version_ | 1855035174004195328 |
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| author | Perez Brandan, Carolina Chavarria, Diego N. Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Cecilia Maria Vargas Gil, Silvina |
| author_browse | Chavarria, Diego N. Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Carolina Perez Brandan, Cecilia Maria Vargas Gil, Silvina |
| author_facet | Perez Brandan, Carolina Chavarria, Diego N. Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Cecilia Maria Vargas Gil, Silvina |
| author_sort | Perez Brandan, Carolina |
| collection | INTA Digital |
| description | The inclusion of tropical grass forage as a cover crop (CC) could be a useful tool to improve microbiological activity and, consequently, soil quality. The aim of this study was to evaluate the effect of Brachiaria brizantha cv. Mulato and maize (Zea mays) as CC on soil microbial communities and their contributions to a degraded common bean (Phaseolus vulgaris L.). monoculture system. Soil sampling was carried out in 2016 after six years of cumulative effect across different treatments: B. brizantha-B. brizantha-common bean (B2), B. brizantha-common bean (B1), maize-common bean (M) and common bean monoculture (control). B2 and B1 showed higher fluorescein diacetate hydrolysis (108.1% and 78.6%, respectively) and higher acid phosphatase activity (304.5% and 181.6%, respectively) compared with the control treatment. The metabolic efficiency was higher in treatments containing B. brizantha as CC, with a significantly lower metabolic quotient (respiration rate per unit microbial biomass carbon) in B2 (1.65) compared with the control (5.46). The B2 treatment also showed higher values of soil organic carbon, which was correlated with soil microbial activities. In contrast, qPCR analysis of microbial structure did not show significant differences in response to the evaluated treatments. Thus, fungal and bacterial abundance probably had less influence on the differentiation of treatments compared to microbial activity and soil chemical properties. In context of this research, the use of B. brizantha as CC increased soil fertility and generated a greater microbial metabolic efficiency. Our research demonstrates that B. brizantha cv. Mulato as CC is a suitable agricultural tool to restore soil biochemical properties. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3620 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA36202019-01-22T18:18:05Z Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil Perez Brandan, Carolina Chavarria, Diego N. Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Cecilia Maria Vargas Gil, Silvina Brachiaria Brizantha Plantas de Cobertura Propiedades Físico-Químicas Suelo Suelos Agrícolas Monocultivo Enzimas Sostenibilidad Cover Plants Soil Chemicophysical Properties Agricultural Soils Monoculture Enzymes Sustainability Cultivos de Cobertura Funcionalidad del Suelo Macronutrientes Cover Crops Soil Functionality Macronutrients The inclusion of tropical grass forage as a cover crop (CC) could be a useful tool to improve microbiological activity and, consequently, soil quality. The aim of this study was to evaluate the effect of Brachiaria brizantha cv. Mulato and maize (Zea mays) as CC on soil microbial communities and their contributions to a degraded common bean (Phaseolus vulgaris L.). monoculture system. Soil sampling was carried out in 2016 after six years of cumulative effect across different treatments: B. brizantha-B. brizantha-common bean (B2), B. brizantha-common bean (B1), maize-common bean (M) and common bean monoculture (control). B2 and B1 showed higher fluorescein diacetate hydrolysis (108.1% and 78.6%, respectively) and higher acid phosphatase activity (304.5% and 181.6%, respectively) compared with the control treatment. The metabolic efficiency was higher in treatments containing B. brizantha as CC, with a significantly lower metabolic quotient (respiration rate per unit microbial biomass carbon) in B2 (1.65) compared with the control (5.46). The B2 treatment also showed higher values of soil organic carbon, which was correlated with soil microbial activities. In contrast, qPCR analysis of microbial structure did not show significant differences in response to the evaluated treatments. Thus, fungal and bacterial abundance probably had less influence on the differentiation of treatments compared to microbial activity and soil chemical properties. In context of this research, the use of B. brizantha as CC increased soil fertility and generated a greater microbial metabolic efficiency. Our research demonstrates that B. brizantha cv. Mulato as CC is a suitable agricultural tool to restore soil biochemical properties. EEA Salta Fil: Perez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Chavarría, Diego Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patologia Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Huidobro, Dina Jorgelina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Meriles, Jose Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba; Argentina Fil: Pérez Brandan, Cecilia María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Patología Experimental. Universidad Nacional de Salta. Facultad de Ciencias de la Salud. Instituto de Patología Experimental; Argentina Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina 2018-10-17T18:32:37Z 2018-10-17T18:32:37Z 2017-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3620 https://www.sciencedirect.com/science/article/pii/S1164556317302972?via%3Dihub 1164-5563 https://doi.org/10.1016/j.ejsobi.2017.10.009 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier European journal of soil biology 83 : 84-90. (November 2017) |
| spellingShingle | Brachiaria Brizantha Plantas de Cobertura Propiedades Físico-Químicas Suelo Suelos Agrícolas Monocultivo Enzimas Sostenibilidad Cover Plants Soil Chemicophysical Properties Agricultural Soils Monoculture Enzymes Sustainability Cultivos de Cobertura Funcionalidad del Suelo Macronutrientes Cover Crops Soil Functionality Macronutrients Perez Brandan, Carolina Chavarria, Diego N. Huidobro, Dina Jorgelina Meriles, Jose Manuel Perez Brandan, Cecilia Maria Vargas Gil, Silvina Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title | Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title_full | Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title_fullStr | Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title_full_unstemmed | Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title_short | Influence of a tropical grass (Brachiaria brizantha cv. Mulato) as cover crop on soil biochemical properties in a degraded agricultural soil |
| title_sort | influence of a tropical grass brachiaria brizantha cv mulato as cover crop on soil biochemical properties in a degraded agricultural soil |
| topic | Brachiaria Brizantha Plantas de Cobertura Propiedades Físico-Químicas Suelo Suelos Agrícolas Monocultivo Enzimas Sostenibilidad Cover Plants Soil Chemicophysical Properties Agricultural Soils Monoculture Enzymes Sustainability Cultivos de Cobertura Funcionalidad del Suelo Macronutrientes Cover Crops Soil Functionality Macronutrients |
| url | http://hdl.handle.net/20.500.12123/3620 https://www.sciencedirect.com/science/article/pii/S1164556317302972?via%3Dihub https://doi.org/10.1016/j.ejsobi.2017.10.009 |
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