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resumen

Resumen
Hairy vetch (Vicia villosa Roth) is a winter annual legume cultivated for pasture and hay with the capability for natural reseeding. Vicia villosa increases N concentrations in the soil, thus contributing to the sustainability of semiarid regions. However, under rotations of 1–2 years of pasture followed by 1 year of crop (1:1–2:1), hairy vetch could become a problematic volunteer weed in the winter cereal crop phase. This study aimed to develop a [ver mas...]
dc.contributor.authorRenzi Pugni, Juan Pablo
dc.contributor.authorChantre Balacca, Guillermo Ruben
dc.contributor.authorCantamutto, Miguel Angel
dc.date.accessioned2018-05-04T12:31:10Z
dc.date.available2018-05-04T12:31:10Z
dc.date.issued2018-03
dc.identifier.issn0142-5242
dc.identifier.issn1365-2494
dc.identifier.otherhttps://doi.org/10.1111/gfs.12295
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12295
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2320
dc.description.abstractHairy vetch (Vicia villosa Roth) is a winter annual legume cultivated for pasture and hay with the capability for natural reseeding. Vicia villosa increases N concentrations in the soil, thus contributing to the sustainability of semiarid regions. However, under rotations of 1–2 years of pasture followed by 1 year of crop (1:1–2:1), hairy vetch could become a problematic volunteer weed in the winter cereal crop phase. This study aimed to develop a mechanistic model for hairy vetch seedling emergence in order to (i) estimate the natural reseeding of hairy vetch in the pasture phase of the field rotation, or (ii) develop control strategies considering hairy vetch as a volunteer weed in the winter cereal phase. The proposed model simulates the pattern of field emergence of hairy vetch after natural seed dispersal by integrating four submodels: (i) physical (PY) dormancy release dynamics, (ii) physiological dormancy (PD) release and germination thermal requirements, (iii) hydro‐time requirements for germination, and (iv) pre‐emergence growth respectively. The developed field emergence model was validated with independent field emergence data during 2013, 2014 and 2015. The model adequately predicted the timing and magnitude of field emergence flushes (RMSE < 10.1) despite the environmental variability among years. The additive effect of each submodel clearly improved the explanatory capacity of the field emergence patterns. The alleviation of PD synchronizes the timing for hairy vetch germination, while the PY determines the seedbank persistence. These outcomes suggest the potential applicability of the proposed modelling approach within management decision support systems.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceGrass and forage science 73 (1) : 146-158. (March 2018)eng
dc.subjectVicia Villosaes_AR
dc.subjectEmergenciaes_AR
dc.subjectEmergenceeng
dc.subjectZona Semiáridaes_AR
dc.subjectSemiarid Zoneseng
dc.subjectAgroecosistemases_AR
dc.subjectAgroecosystemseng
dc.titleVicia villosa ssp. villosa Roth field emergence model in a semiarid agroecosystemeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Hilario Ascasubies_AR
dc.description.filFil: Renzi Pugni, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentinaes_AR
dc.description.filFil: Chantre Balacca, Guillermo Ruben. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentinaes_AR
dc.description.filFil: Cantamutto, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentinaes_AR
dc.subtypecientifico


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