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resumen

Resumen
Soil physical degradation is a current problem in Molisols of the Pampas Region under no-tillage (NT), that has been related to over-simplified agricultural systems with scarce or no rotations and long winter bare fallows. Soil physical quality (SPQ) is a key factor of soil health and productivity, as it controls root development and air and water fluxes and storage in the soil, which in turn affect nutrient uptake and plant growth. Cover crops have been [ver mas...]
dc.contributor.authorSalazar, María Paz
dc.contributor.authorLozano, Luis Alberto
dc.contributor.authorVillarreal, Rafael
dc.contributor.authorIrizar, Alicia Beatriz
dc.contributor.authorBarraco, Miriam Raquel
dc.contributor.authorPolich, Nicolás Guillermo
dc.contributor.authorSoracco, Carlos Germán
dc.date.accessioned2021-12-27T11:41:34Z
dc.date.available2021-12-27T11:41:34Z
dc.date.issued2021-11
dc.identifier.issn0167-1987
dc.identifier.otherhttps://doi.org/10.1016/j.still.2021.105268
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10988
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S016719872100341X
dc.description.abstractSoil physical degradation is a current problem in Molisols of the Pampas Region under no-tillage (NT), that has been related to over-simplified agricultural systems with scarce or no rotations and long winter bare fallows. Soil physical quality (SPQ) is a key factor of soil health and productivity, as it controls root development and air and water fluxes and storage in the soil, which in turn affect nutrient uptake and plant growth. Cover crops have been proposed as a companion agricultural practice to improve NT performance and SPQ. The aim of this study was to evaluate the effect of the inclusion of winter cover crops in different cropping sequences on capacity and intensity indicators of SPQ in two soils of different texture under NT and to compare it with different traditional crop sequences, including non-agricultural plots. SPQ was evaluated at two different sites, one with a silty loam Argiudoll and the other with a sandy loam Hapludoll. Treatments included plots with and without cover crops, with different summer crop sequences (continuous soybean and corn – soybean rotations). Also, a corn – wheat/soybean rotation with and without pastures was evaluated. All treatments had more than 15 years under the same management. We measured soil organic carbon (SOC), and capacity SPQ indicators (bulk density, total porosity, pore size distribution, air capacity, plant available water, relative field capacity and S index). We also measured dynamic SPQ indicators derived from field infiltration tests (saturated and near saturation hydraulic conductivity, effective macro and mesoporosity, and porosity connectivity indexes for different pore families). On the silty loam Argiudoll, cover crops increased SOC but failed to improve SPQ. This was related to soil physical degradation and the low ability of these soils for structure regeneration. On the sandy loam Hapludoll, cover crops had mixed effects on SOC and pore size distribution, but increased near saturation hydraulic conductivity, in the case of the corn – soybean rotation with cover crops, reaching values similar to those of a natural grassland.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceSoil and Tillage Research 217 : 105268. (March 2022)es_AR
dc.subjectSueloes_AR
dc.subjectSoileng
dc.subjectSistemas de Cultivoes_AR
dc.subjectCropping Systemseng
dc.subjectPlantas de Coberturaes_AR
dc.subjectCover Plantseng
dc.subjectCultivos de Inviernoes_AR
dc.subjectWinter Cropseng
dc.subjectConductividad Hidráulicaes_AR
dc.subjectHydraulic Conductivityeng
dc.subjectSistema Poroso del Sueloes_AR
dc.subjectSoil Pore Systemeng
dc.subjectAlmacenamiento de Aguaes_AR
dc.subjectWater Storageeng
dc.subject.otherRegión Pampeanaes_AR
dc.titleCapacity and Intensity Indicators to evaluate the effect of different crop sequences and cover crops on soil physical quality of two different textured soils from Pampas Regiones_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Salazar, M. P. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Centro de Investigaciones de Suelos para la Sustentabilidad Agrícola y Forestal (CISSAF); Argentinaes_AR
dc.description.filFil: Salazar, M. P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Lozano, L.A. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Centro de Investigaciones de Suelos para la Sustentabilidad Agrícola y Forestal (CISSAF); Argentinaes_AR
dc.description.filFil: Lozano, L.A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Villarreal, R. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Centro de Investigaciones de Suelos para la Sustentabilidad Agrícola y Forestal (CISSAF); Argentinaes_AR
dc.description.filFil: Villarreal, R. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Irizar, Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentinaes_AR
dc.description.filFil: Barraco, Miriam Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria General Villegas; Argentinaes_AR
dc.description.filFil: Polich, N. G. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Centro de Investigaciones de Suelos para la Sustentabilidad Agrícola y Forestal (CISSAF); Argentinaes_AR
dc.description.filFil: Soracco, C. G. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Centro de Investigaciones de Suelos para la Sustentabilidad Agrícola y Forestal (CISSAF); Argentinaes_AR
dc.description.filFil: Soracco, C. G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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