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dc.contributor.author
Peralta, Guillermo Ezequiel
dc.contributor.author
Taboada, Miguel Angel
dc.contributor.author
Kantolic, Adriana Graciela
dc.contributor.author
Rubio, Gerardo
dc.date.available
2022-08-02T11:36:06Z
dc.date.issued
2020-07
dc.identifier.citation
Peralta, Guillermo Ezequiel; Taboada, Miguel Angel; Kantolic, Adriana Graciela; Rubio, Gerardo; Topsoil Hardening: Effects on Soybean Root Architecture and Water Extraction Patterns; Springer; Journal of Soil Science and Plant Nutrition; 20; 4; 7-2020; 2182-2194
dc.identifier.issn
0718-9508
dc.identifier.uri
http://hdl.handle.net/11336/163831
dc.description.abstract
Topsoil hardening is one of the major causes of poor root growth although its effects on subsoil roots are still not well-known. Our aim was to examine the effects of topsoil hardening on the growth and functioning of shallow and deep roots of soybean plants. Two rain shelter experiments were conducted in two consecutive years. Plants were grown in topsoil monoliths (0–20 cm) with low (LR) or high mechanical resistance (HR), extracted from adjacent no-tillage cropping fields, and placed above 180 cm-high containers filled with a sandy loam soil. The effects of topsoil hardening were largely regulated by the level of water stress. In stressed plants, HR conditions reduced total aboveground biomass (up to 13%), total root biomass, root length density, and root surface area (up to 23, 38, and 37% respectively). Mechanical impedances reduced root biomass and length in both shallow (0–20 cm) and very deep layers (+ 160 cm). No changes were observed in specific root length or specific surface area. Plants growing in HR topsoils showed lower total water extraction but greater specific water uptake rates (29–47% higher in year 1 and 2 respectively). No clear architectural (i.e., root density) or morphological (i.e., specific root length/area) responses of enhanced root foraging capacity were observed in subsoil roots. However, soybean root system responded through functional mechanisms (i.e., specific water uptake) which partially attenuated the negative effects of mechanical impedances.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
NO-TILLAGE
dc.subject
ROOT ARCHITECTURE
dc.subject
ROOT DEVELOPMENT
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SOIL MECHANICAL IMPEDANCE
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SOIL PHYSICAL DEGRADATION
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SOYBEAN
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WATER UPTAKE
dc.subject.classification
Agricultura
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Topsoil Hardening: Effects on Soybean Root Architecture and Water Extraction Patterns
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-04-28T21:27:36Z
dc.identifier.eissn
0718-9516
dc.journal.volume
20
dc.journal.number
4
dc.journal.pagination
2182-2194
dc.journal.pais
Chile
dc.description.fil
Fil: Peralta, Guillermo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Taboada, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Kantolic, Adriana Graciela. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Rubio, Gerardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina
dc.journal.title
Journal of Soil Science and Plant Nutrition
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s42729-020-00286-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s42729-020-00286-y
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