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Mostrando ítems 1-13 de 13
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Análisis económico del uso de Drones para la generación de mapas de prescripción de malezas
(INTA, 2015-03)El desarrollo y uso frecuente de mapas de malezas como una he rramienta más de agricultura de precisión solamente será factible en la medida en que la elaboración de los mismos no implique una sobrecarga de tareas y costos ... -
Comparative impact of two glyphosate-based formulations in interaction with Limnoperna fortunei on freshwater phytoplankton
(2018-02)Although contamination and invasive species are two of the most relevant anthropogenic drivers affecting ecosystems, their joint impact on the environment has been poorly investigated. Glyphosate, directly or indirectly, ... -
Determinantes hidrológicos y edáficos de la dinámica de algunos contaminantes en una microcuenca de Pampa Ondulada bajo siembra directa
(Facultad de Agronomía, Universidad de Buenos Aires, 2020-03-19)En la Región Pampeana se observan procesos de degradación física y de erosión hídrica aún en planteos de siembra directa. Para la evaluación de estos procesos se trabajó de manera conjunta a nivel de microcuenca, lote/parche ... -
Efectos del herbicida glifosato sobre la estructura y el funcionamiento de comunidades microbianas de dos suelos de plantaciones de olivo
(Asociación Argentina de Ecología, 2012-04-01)Los herbicidas pueden alterar la estructura y el funcionamiento del suelo mediante efectos directos sobre varios componentes de su microbiota. Muchos autores han encontrado un efecto perjudicial del glifosato sobre la ... -
Effects of glyphosate and 2,4-D mixture on freshwater phytoplankton and periphyton communities: a microcosms approach
(2018-02)Glyphosate (G) and 2,4-D herbicides are massively applied in agriculture worldwide and the use of their mixture is currently a very common practice. We carried out two experiments using microcosms under laboratory conditions ... -
Multiple ways to evade the bacteriostatic action of glyphosate in rhizobia include the mutation of the conserved serine 90 of the nitrogenase subunit NifH to alanine
(Elsevier, 2022-07)The genome resequencing of spontaneous glyphosate-resistant mutants derived from the soybean inoculant E109 allowed identifying genes most likely associated with the uptake (gltL and cya) and metabolism (zigA and betA) of ... -
Pesticide dynamics in agroecosystems: Assessing climatic and hydro-physical effects in a soybean cycle under no-tillage
(Elsevier, 2022-09)The high rate of No-Tillage (NT) adoption in Argentina has been followed by conspicuous application of herbicides due to RR crops selection and recently due to weed resistance. In addition, no-tillage in the Rolling Pampa ... -
Population genetics structure of glyphosate‐resistant Johnsongrass (Sorghum halepense L. Pers) does not support a single origin of the resistance
(Wiley, 2013-09)Single sequence repeats (SSR) developed for Sorghum bicolor were used to characterize the genetic distance of 46 different Sorghum halepense (Johnsongrass) accessions from Argentina some of which have evolved toward ... -
Soil hydro-physical variables and crop residues determinate runoff soil loss, and glyphosate and AMPA concentration in the aqueous phase under simulated rainfall events
(Wiley, 2024-07-09)Soil structural degradation and water erosion processes were observed even in no-tillage schemes in the Pampas region. Within these conservation systems, agrochemical application per hectare is one of the highest globally. ... -
Soil structure and glyphosate fate under no-till management in the Pampa region. I. Soil structural anisotropy and hydro-physical behavior
(Elsevier, 2022-05-03)Several studies have reported a frequent occurrence of platy structures in soils under no tillage (NT), mostly in silty ones. The objective of this study was to evaluate the morphological features and the pore architecture ... -
Soil structure and glyphosate fate under no-till manangement in the pampa region. II. Glyphosate and AMPA persistence and spatial distribution in the long-term. A conceptual model
(Elsevier, 2022-07-14)Glyphosate and AMPA were measured in a no-tilled (NT) soil and in the runoff resulting from the rain simulation carried out after 270 days of the application of the herbicide. Glyphosate concentration was in low values in ... -
Toxicities of glyphosate- and cypermethrin-based pesticides are antagonic in the tenspotted livebearer fish (Cnesterodon decemmaculatus)
(2016)Although pesticide contamination of surface waters normally occurs in the form of mixtures, the toxicity and interactions displayed by such mixtures have been little characterized until now. The present study examined ... -
Validation of reference genes for quantitative PCR in Johnsongrass (Sorghum halepense L.) under glyphosate stress
(MDPI, 2021-08)Weeds are one of the main causes of the decrease in crop yields, with Johnsongrass (Sorghum halepense L.) being one of the most significant. Weeds can be controlled by herbicides, but some have developed resistance. ...