Chemical constraints are the major limiting factor of root deepening in southern Brazil soils
Large soybean yield gaps are related to irregular rainfall patterns in several rainfed soybean crop regions, such as southern Brazil. More efficient rainwater use can be achieved in these regions through deeper roots. Therefore, assessing the status of soybean rooting and soil-related factors that d...
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| Format: | article |
| Sprog: | engelsk |
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2024
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| Online adgang: | https://hdl.handle.net/20.500.12381/4065 https://doi.org/10.1016/j.geodrs.2024.e00825 |
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| _version_ | 1868890229895593984 |
|---|---|
| author | Pivoto Mulazzani, Rodrigo |
| author2 | Boeno, Daniel San Martin, Bruna Ferigolo, Alexandre Zanon, Alencar Gubiani, Paulo |
| author2_role | author author author author author |
| author_browse | Boeno, Daniel Ferigolo, Alexandre Gubiani, Paulo Pivoto Mulazzani, Rodrigo San Martin, Bruna Zanon, Alencar |
| author_facet | Pivoto Mulazzani, Rodrigo Boeno, Daniel San Martin, Bruna Ferigolo, Alexandre Zanon, Alencar Gubiani, Paulo |
| author_role | author |
| collection | UTEC en REDI |
| dc.creator.none.fl_str_mv | Pivoto Mulazzani, Rodrigo Boeno, Daniel San Martin, Bruna Ferigolo, Alexandre Zanon, Alencar Gubiani, Paulo |
| dc.date.none.fl_str_mv | 2024-09 2025-06-12T13:30:25Z |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/20.500.12381/4065 https://doi.org/10.1016/j.geodrs.2024.e00825 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | Acceso embargado info:eu-repo/semantics/embargoedAccess Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional. (CC BY-NC-ND) 2026-09-01 2026-09-01 |
| dc.source.none.fl_str_mv | Geoderma Regional reponame:UTEC en REDI instname:Universidad Tecnológica instacron:Universidad Tecnológica |
| dc.subject.none.fl_str_mv | Root growth Physical constraints Chemical constraints Soybean root survey Soybean yield gap Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo |
| dc.title.none.fl_str_mv | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article Aceptado info:eu-repo/semantics/acceptedVersion |
| description | Large soybean yield gaps are related to irregular rainfall patterns in several rainfed soybean crop regions, such as southern Brazil. More efficient rainwater use can be achieved in these regions through deeper roots. Therefore, assessing the status of soybean rooting and soil-related factors that drive root growth in soybean fields is mandatory for making management decisions that minimize the yield gap. To this end, we conducted a survey in 10 fields in the state of Rio Grande do Sul (RS), Brazil, during the 2021/22 season. Undisturbed soil blocks and cores and disturbed soil samples were collected in trenches up to approximately 80 cm deep when the soybean was at the R5 stage. The roots washed from the soil blocks were scanned to determine the relative root length density (RRLD), whereas the soil cores and disturbed samples were used for physical and chemical analyses. Hierarchical cluster analysis based on the RRLD was performed to group fields according to their similarities in root distribution and soil-related factors. Soybean rooting in RS fields is quite shallow, with more than 72% of the total RRLD in all fields located within the 0–20 cm layer and less than 15% deeper than 40 cm in most fields. Chemical constraints, such as high gradient of acidity-related variables along soil profile and low concentration of nutrients below 20 cm depth, limited soybean root deepening in 50% of the fields, while physical constraints were predominant in 30% of the fields. Thus, management strategies for reducing soybean yield gap by increasing rooting depth in fields of RS need to focus on improving subsurface chemical conditions for root growth. |
| eu_rights_str_mv | embargoedAccess |
| format | article |
| id | anni_f0fa2e4ec0f077cedb4221a756eb6c3d |
| instacron_str | Universidad Tecnológica |
| institution | Universidad Tecnológica |
| instname_str | Universidad Tecnológica |
| language | eng |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:redi.anii.org.uy:20.500.12381/4065 |
| publishDate | 2024 |
| publishDateSort | 2024 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | UTEC en REDI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Acceso embargado Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional. (CC BY-NC-ND) 2026-09-01 |
| spelling | Chemical constraints are the major limiting factor of root deepening in southern Brazil soilsPivoto Mulazzani, RodrigoBoeno, DanielSan Martin, BrunaFerigolo, AlexandreZanon, AlencarGubiani, PauloRoot growthPhysical constraintsChemical constraintsSoybean root surveySoybean yield gapCiencias AgrícolasAgricultura, Silvicultura y PescaCiencias del SueloLarge soybean yield gaps are related to irregular rainfall patterns in several rainfed soybean crop regions, such as southern Brazil. More efficient rainwater use can be achieved in these regions through deeper roots. Therefore, assessing the status of soybean rooting and soil-related factors that drive root growth in soybean fields is mandatory for making management decisions that minimize the yield gap. To this end, we conducted a survey in 10 fields in the state of Rio Grande do Sul (RS), Brazil, during the 2021/22 season. Undisturbed soil blocks and cores and disturbed soil samples were collected in trenches up to approximately 80 cm deep when the soybean was at the R5 stage. The roots washed from the soil blocks were scanned to determine the relative root length density (RRLD), whereas the soil cores and disturbed samples were used for physical and chemical analyses. Hierarchical cluster analysis based on the RRLD was performed to group fields according to their similarities in root distribution and soil-related factors. Soybean rooting in RS fields is quite shallow, with more than 72% of the total RRLD in all fields located within the 0–20 cm layer and less than 15% deeper than 40 cm in most fields. Chemical constraints, such as high gradient of acidity-related variables along soil profile and low concentration of nutrients below 20 cm depth, limited soybean root deepening in 50% of the fields, while physical constraints were predominant in 30% of the fields. Thus, management strategies for reducing soybean yield gap by increasing rooting depth in fields of RS need to focus on improving subsurface chemical conditions for root growth.Elsevier2025-06-12T13:30:25Z2024-09Artículoinfo:eu-repo/semantics/articleAceptadoinfo:eu-repo/semantics/acceptedVersionhttps://hdl.handle.net/20.500.12381/4065https://doi.org/10.1016/j.geodrs.2024.e00825Geoderma Regionalreponame:UTEC en REDIinstname:Universidad Tecnológicainstacron:Universidad TecnológicaengAcceso embargadoinfo:eu-repo/semantics/embargoedAccessReconocimiento-NoComercial-SinObraDerivada 4.0 Internacional. (CC BY-NC-ND)2026-09-01Elsevier posibilita la carga del Manuscrito aceptado a repositorios institucionales, siempre y cuando se haga referencia a la publicación original y se cumpla con el período de embargo de la revista. En este caso, la revista Geoderma Regional tiene un período de embargo de 24 meses desde que se publico el articulo.2026-09-01oai:redi.anii.org.uy:20.500.12381/40652026-06-16T05:30:20Z |
| spellingShingle | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils Pivoto Mulazzani, Rodrigo Root growth Physical constraints Chemical constraints Soybean root survey Soybean yield gap Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo |
| status_str | acceptedVersion |
| title | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| title_full | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| title_fullStr | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| title_full_unstemmed | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| title_short | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| title_sort | Chemical constraints are the major limiting factor of root deepening in southern Brazil soils |
| topic | Root growth Physical constraints Chemical constraints Soybean root survey Soybean yield gap Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo |
| url | https://hdl.handle.net/20.500.12381/4065 https://doi.org/10.1016/j.geodrs.2024.e00825 |