Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability
In the Southeastern region of Buenos Aires province, soybean monoculture has led to a decline in soil organic matter (SOM) levels in soil, mostly the labile fractions. The reduction of SOM has a negative impact on the soil environment. Cover crops (CC) constitute an alternative to maintain or improv...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/3552 https://link.springer.com/article/10.1007%2Fs12665-018-7606-0#citeas https://doi.org/10.1007/s12665-018-7606-0 |
| _version_ | 1855035162530676736 |
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| author | Beltran, Marcelo Javier Sainz Rozas, Hernan Rene Galantini, Juan Alberto Romaniuk, Romina Ingrid Barbieri, Pablo |
| author_browse | Barbieri, Pablo Beltran, Marcelo Javier Galantini, Juan Alberto Romaniuk, Romina Ingrid Sainz Rozas, Hernan Rene |
| author_facet | Beltran, Marcelo Javier Sainz Rozas, Hernan Rene Galantini, Juan Alberto Romaniuk, Romina Ingrid Barbieri, Pablo |
| author_sort | Beltran, Marcelo Javier |
| collection | INTA Digital |
| description | In the Southeastern region of Buenos Aires province, soybean monoculture has led to a decline in soil organic matter (SOM) levels in soil, mostly the labile fractions. The reduction of SOM has a negative impact on the soil environment. Cover crops (CC) constitute an alternative to maintain or improve SOM levels. The aim of this study was to determine the effect of oat as CC on (a) the SOM dynamics and (b) the availability of macro- and micronutrients in a representative soil of the Southeastern region of Buenos Aires province. Total organic carbon (TOC) and nitrogen (TON), as well as their labile and mineral-associated fractions, and macro- and micronutrient availability were determined. The treatments were soybean monoculture with and without oat as cover crop. The increases in SOC and TON were 22.7% and 11%, respectively, when CC was included to the soybean monoculture. These increases were observed mostly in the labile fractions, with increases of 61.3 and 38.7% for the particulate coarse organic carbon (PCOf) and particulate fine organic carbon (PCOf), respectively, and 79.2% for the particulate coarse organic nitrogen (NOPg). Regarding the nutrients, an increase of 47.6% was observed in manganese (Mn) in the first 5 cm of soil depth, and a decrease in phosphorous (P) availability in the same soil layer due to its consumption and retention by CC. It can be conclude that CC presented a surface soil effect on the dynamic of SOM, increasing C, N, and available Mn contents, but decreasing soil P availability. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3552 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA35522018-10-03T14:55:42Z Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability Beltran, Marcelo Javier Sainz Rozas, Hernan Rene Galantini, Juan Alberto Romaniuk, Romina Ingrid Barbieri, Pablo Plantas de Cobertura Materia Orgánica del Suelo Disponibilidad de Nutrientes Avenas Soja Monocultivo Compuesto Orgánico del Nitrógeno Carbono Orgánico del Suelo Cover Plants Soil Organic Matter Nutrient Availability Oats Soybeans Monoculture Organic Nitrogen Compounds Soil Organic Carbon Buenos Aires In the Southeastern region of Buenos Aires province, soybean monoculture has led to a decline in soil organic matter (SOM) levels in soil, mostly the labile fractions. The reduction of SOM has a negative impact on the soil environment. Cover crops (CC) constitute an alternative to maintain or improve SOM levels. The aim of this study was to determine the effect of oat as CC on (a) the SOM dynamics and (b) the availability of macro- and micronutrients in a representative soil of the Southeastern region of Buenos Aires province. Total organic carbon (TOC) and nitrogen (TON), as well as their labile and mineral-associated fractions, and macro- and micronutrient availability were determined. The treatments were soybean monoculture with and without oat as cover crop. The increases in SOC and TON were 22.7% and 11%, respectively, when CC was included to the soybean monoculture. These increases were observed mostly in the labile fractions, with increases of 61.3 and 38.7% for the particulate coarse organic carbon (PCOf) and particulate fine organic carbon (PCOf), respectively, and 79.2% for the particulate coarse organic nitrogen (NOPg). Regarding the nutrients, an increase of 47.6% was observed in manganese (Mn) in the first 5 cm of soil depth, and a decrease in phosphorous (P) availability in the same soil layer due to its consumption and retention by CC. It can be conclude that CC presented a surface soil effect on the dynamic of SOM, increasing C, N, and available Mn contents, but decreasing soil P availability. Instituto de Suelos Fil: Beltran, Marcelo Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Sainz Rozas, Hernan Rene. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Galantini, Juan Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina Fil: Romaniuk, Romina Ingrid. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Barbieri, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina 2018-10-03T14:50:20Z 2018-10-03T14:50:20Z 2018-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3552 https://link.springer.com/article/10.1007%2Fs12665-018-7606-0#citeas 1866-6280 1866-6299 (Online) https://doi.org/10.1007/s12665-018-7606-0 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Environmental earth sciences 77 : 428. (June 2018) |
| spellingShingle | Plantas de Cobertura Materia Orgánica del Suelo Disponibilidad de Nutrientes Avenas Soja Monocultivo Compuesto Orgánico del Nitrógeno Carbono Orgánico del Suelo Cover Plants Soil Organic Matter Nutrient Availability Oats Soybeans Monoculture Organic Nitrogen Compounds Soil Organic Carbon Buenos Aires Beltran, Marcelo Javier Sainz Rozas, Hernan Rene Galantini, Juan Alberto Romaniuk, Romina Ingrid Barbieri, Pablo Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title | Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title_full | Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title_fullStr | Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title_full_unstemmed | Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title_short | Cover crops in the Southeastern region of Buenos Aires, Argentina: effects on organic matter physical fractions and nutrient availability |
| title_sort | cover crops in the southeastern region of buenos aires argentina effects on organic matter physical fractions and nutrient availability |
| topic | Plantas de Cobertura Materia Orgánica del Suelo Disponibilidad de Nutrientes Avenas Soja Monocultivo Compuesto Orgánico del Nitrógeno Carbono Orgánico del Suelo Cover Plants Soil Organic Matter Nutrient Availability Oats Soybeans Monoculture Organic Nitrogen Compounds Soil Organic Carbon Buenos Aires |
| url | http://hdl.handle.net/20.500.12123/3552 https://link.springer.com/article/10.1007%2Fs12665-018-7606-0#citeas https://doi.org/10.1007/s12665-018-7606-0 |
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