Mostrar el registro sencillo del ítem
resumen
Resumen
Argentine agricultural production is fundamentally based on technological package that combines direct seeding and glyphosate with transgenic crops (soybean, maize and cotton), which makes glyphosate the most
widely employed herbicide in the country. Glyphosate is strongly sorbed to soil in a reversible process that regulates the half-life and mobility of the herbicide, with the resulting risk of contaminating surface and groundwater courses. However,
[ver mas...]
dc.contributor.author | De Geronimo, Eduardo | |
dc.contributor.author | Aparicio, Virginia Carolina | |
dc.contributor.author | Costa, Jose Luis | |
dc.coverage.spatial | Argentina (nation) | |
dc.date.accessioned | 2018-03-09T16:49:00Z | |
dc.date.available | 2018-03-09T16:49:00Z | |
dc.date.issued | 2018 | |
dc.identifier.other | https://doi.org/10.1016/j.geoderma.2018.02.037 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/2008 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0016706117316002 | |
dc.description.abstract | Argentine agricultural production is fundamentally based on technological package that combines direct seeding and glyphosate with transgenic crops (soybean, maize and cotton), which makes glyphosate the most widely employed herbicide in the country. Glyphosate is strongly sorbed to soil in a reversible process that regulates the half-life and mobility of the herbicide, with the resulting risk of contaminating surface and groundwater courses. However, this behavior may vary depending on the characteristics of the soil on which it is applied. Sorption coefficients are thus the most sensitive parameters in models used for environmental risk assessment. The aim of this work was to study the affinity of glyphosate to 12 different soils of Argentina and create a model to estimate the glyphosate Freundlich sorption coefficient (Kf) from easily measurable soil properties. Batch equilibration adsorption data are shown by Freundlich adsorption isotherms. Principal component analysis and multiple linear regressions were used to correlate the effects of soil properties on glyphosate adsorption coefficients. Results indicate that pH and clay contents were the major soil parameters governing glyphosate adsorption in soils. The Freundlich (Kf) pedotransfer function obtained by stepwise regression analysis has 97.9% of the variation in glyphosate sorption coefficients that could be attributed to the variation of the soil clay contents, pH, PBray and Alin. | eng |
dc.format | application/pdf | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Geoderma 322 : 140-148. (15 July 2018) | |
dc.subject | Fertilidad del suelo | |
dc.subject | Glifosato | |
dc.subject | Sorción del Suelo | |
dc.subject | Soil Sorption | eng |
dc.subject | Soil Fertility | eng |
dc.subject | Glyphosate | eng |
dc.subject.other | Función de Pedotransferencia | |
dc.title | Glyphosate sorption to soils of Argentina. Estimation of affinity coefficient by pedotransfer function | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | EEA Balcarce | |
dc.gic | 156569 | |
dc.description.fil | Fil: De Geronimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina | |
dc.description.fil | Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina | |
dc.description.fil | Fil: Costa, José Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina | |
dc.subtype | cientifico |
Ficheros en el ítem
Este ítem aparece en la(s) siguiente(s) colección(ones)
common
-
Artículos científicos [644]