Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior
Several studies have reported a frequent occurrence of platy structures in soils under no tillage (NT), mostly in silty ones. The objective of this study was to evaluate the morphological features and the pore architecture of a soil under NT and their effects on hydro-physical variables. The study w...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Elsevier
2022
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/11890 https://www.sciencedirect.com/science/article/pii/S0167198722000964 https://doi.org/10.1016/j.still.2022.105410 |
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| author | Behrends Kraemer, Filipe Sainz, Daiana Soledad Morras, Héctor José María Carfagno, Patricia Eiza, Maximiliano Joaquin Fernandez, P. Chagas, Celio Ignacio |
| author_browse | Behrends Kraemer, Filipe Carfagno, Patricia Chagas, Celio Ignacio Eiza, Maximiliano Joaquin Fernandez, P. Morras, Héctor José María Sainz, Daiana Soledad |
| author_facet | Behrends Kraemer, Filipe Sainz, Daiana Soledad Morras, Héctor José María Carfagno, Patricia Eiza, Maximiliano Joaquin Fernandez, P. Chagas, Celio Ignacio |
| author_sort | Behrends Kraemer, Filipe |
| collection | INTA Digital |
| description | Several studies have reported a frequent occurrence of platy structures in soils under no tillage (NT), mostly in silty ones. The objective of this study was to evaluate the morphological features and the pore architecture of a soil under NT and their effects on hydro-physical variables. The study was conducted on a Typic Argiudoll in a site located in the Rolling Pampa, NE of the Buenos Aires province, Argentina. The experimental area was a patch 50 m2, in which rainfall simulation and soil sampling were performed in four sub-plots. Soil structural features were determined by direct visual observation of monoliths and individual aggregates, and by micromorphological and micromorphometric analyses on thin sections. Occurrence of platy structure resulting from cultivation was evident in all sub-plots. A strong vertical anisotropy characterized the topsoil and different morphological types (Platy, Open Platy and Dense) were identified.Rainfall simulations were employed to determine infiltration rate, runoff and sediment yield, which show a high spatial variability. Total porosity, pore size and type and orientation of aggregates and pores appeared to be the main factors explaining the slow infiltration and the great variability of hydrological parameters. The results obtained indicate that a detailed study of structure and porosity of soils cultivated under NT can help to evaluate the effects of this practice on their physical health and behavior. |
| format | Artículo |
| id | INTA11890 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA118902022-05-16T17:45:15Z Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior Behrends Kraemer, Filipe Sainz, Daiana Soledad Morras, Héctor José María Carfagno, Patricia Eiza, Maximiliano Joaquin Fernandez, P. Chagas, Celio Ignacio Morfología del Suelo Porosidad del Suelo Lluvia Simulada Infiltración Glifosato Soil Morphology Soil Porosity Simulated Rainfall Infiltration Glyphosate Región Pampeana Several studies have reported a frequent occurrence of platy structures in soils under no tillage (NT), mostly in silty ones. The objective of this study was to evaluate the morphological features and the pore architecture of a soil under NT and their effects on hydro-physical variables. The study was conducted on a Typic Argiudoll in a site located in the Rolling Pampa, NE of the Buenos Aires province, Argentina. The experimental area was a patch 50 m2, in which rainfall simulation and soil sampling were performed in four sub-plots. Soil structural features were determined by direct visual observation of monoliths and individual aggregates, and by micromorphological and micromorphometric analyses on thin sections. Occurrence of platy structure resulting from cultivation was evident in all sub-plots. A strong vertical anisotropy characterized the topsoil and different morphological types (Platy, Open Platy and Dense) were identified.Rainfall simulations were employed to determine infiltration rate, runoff and sediment yield, which show a high spatial variability. Total porosity, pore size and type and orientation of aggregates and pores appeared to be the main factors explaining the slow infiltration and the great variability of hydrological parameters. The results obtained indicate that a detailed study of structure and porosity of soils cultivated under NT can help to evaluate the effects of this practice on their physical health and behavior. EEA Balcarce Fil: Behrends Kraemer, Filipe. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Sainz, D. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de Suelos; Argentina. Fil: Morrás, Héctor José María. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de Suelos; Argentina. Fil: Morrás, Héctor José María. Universidad de Buenos Aires, Facultad de Agronomía; Argentina. Fil: Carfagno, Patricia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de Suelos; Argentina. Fil: Eiza, Maximiliano Joaquín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Fernández, P. Universidad de Buenos Aires, Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Chagas, C. Universidad de Buenos Aires, Facultad de Agronomía; Argentina. 2022-05-16T17:32:34Z 2022-05-16T17:32:34Z 2022-05-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11890 https://www.sciencedirect.com/science/article/pii/S0167198722000964 0167-1987 https://doi.org/10.1016/j.still.2022.105410 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Soil and Tillage Research 221: 105410 (July 2022) |
| spellingShingle | Morfología del Suelo Porosidad del Suelo Lluvia Simulada Infiltración Glifosato Soil Morphology Soil Porosity Simulated Rainfall Infiltration Glyphosate Región Pampeana Behrends Kraemer, Filipe Sainz, Daiana Soledad Morras, Héctor José María Carfagno, Patricia Eiza, Maximiliano Joaquin Fernandez, P. Chagas, Celio Ignacio Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title | Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title_full | Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title_fullStr | Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title_full_unstemmed | Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title_short | Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior |
| title_sort | soil structure and glyphosate fate under no till management in the pampa region i soil structural anisotropy and hydro physical behavior |
| topic | Morfología del Suelo Porosidad del Suelo Lluvia Simulada Infiltración Glifosato Soil Morphology Soil Porosity Simulated Rainfall Infiltration Glyphosate Región Pampeana |
| url | http://hdl.handle.net/20.500.12123/11890 https://www.sciencedirect.com/science/article/pii/S0167198722000964 https://doi.org/10.1016/j.still.2022.105410 |
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