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Mostrando ítems 410-429 de 598
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Multiresidue method for trace pesticide analysis in honeybee wax comb by GC-QqQ-MS
(2017-01-15)The aim of this analytical study is to develop an improved multi-residue methodology of high sensitivity and expanded scope for pesticide residue analysis in honeybee wax combs. The method was validated for 160 pesticide ... -
Mycofumigation of postharvest blueberries with volatile compounds from Trichoderma atroviride IC-11 is a promising tool to control rots caused by Botrytis cinerea
(Elsevier, 2022-04)Botrytis cinerea, the causal agent of the gray mold, is a filamentous fungus that infects blueberries and can cause important production losses in postharvest storage. Considering that the use of synthetic fungicides is ... -
Nakatea oryzae -Sclerotium Sclerotium oryzae en raquis de panoja arroz en Entre Ríos, Argentina
(Asociación Argentina de Fitopatólogos, 2021-09)En Entre Ríos, En Entre Ríos, durante la campaña 2020/21, una línea experimental de arroz en madurez presentó síntomas de necrosis en raquis principal de panojas, semejantes a los que causa Pyricularia oryzae. A su vez, ... -
Natural occurrence of fumonisins in corn puff in Argentina
(Springer, 2010-11)Maize presents a substantial contamination by fumonisins (FB) throughout the world. In particular, Argentina presents a high frequency of positive samples and levels of up to 10,000 μg/kg of total FB, depending on the ... -
Necesidad de nuevas tecnologías para la producción de batatas en cultivos cercanos al ejido urbano ante cambios normativos
(Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, 2021)La batata es una hortaliza de fácil cultivo, siendo la variedad Gem, de sabor dulce y pulpa anaranjada, un rubro importante de ingresos en la economía de medianos y pequeños productores familiares en Gualeguaychú. Este ... -
Nestedness structure of bird assemblages in a fragmented forest in Central Argentina: the role of selective extinction and colonization processes
(BIOEXPLORA, 2021)Nestedness structure of bird assemblages in a fragmented forest in Central Argentina: the role of selective extinction and colonization processes. Nestedness analysis constitutes an important tool to understand the processes ... -
Neutralidad de la degradación. Integración de prácticas de manejo sustentable de tierras en el área de bosques nativos de Entre Ríos
(Asociación Argentina de la Ciencia del Suelo, 2020-10)Actualmente, el área de bosques nativos del Espinal del Centro Norte de Entre Ríos presenta una serie de problemáticas derivadas del uso inadecuado de las tierras. Erosión hídrica, encharcamiento en áreas planas, pérdida ... -
New records of the invasive pest Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) in the South American continent
(Sociedad Entomológica Argentina, 2018)The present study reports new presences of Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) in four localities in Argentina, extending its geographical range in South America. Among the new records, one is ... -
Nitrogen economy of early and late-sown maize crops
(Elsevier, 2018-11)Late sowing dates of maize are widely adopted in the Pampas region of Argentina, stabilising grain yields due to a more favourable water balance around flowering. However, late-sown crops are exposed to high soil N ... -
Nitrogen utilization efficiency in maize as affected by hybrid and N rate in late-sown crops
(2014-11)After the introduction of Bt-maize, late sowing is becoming an important strategy to stabilize yields in many areas of the Argentine Pampas. Increased nitrogen (N) availability and sharp reduction in radiation and temperature ... -
Nitrous oxide emission after the addition of organic residues on soil surface
(Elsevier, 2017)The addition of organic amendments with a low Carbon:Nitrogen (C:N) ratio to restore degraded soils may increase the emission of greenhouse gases and affect the storage of these elements in the topsoil. Our objectives were ... -
Nitrógeno incubado en anaerobiosis y su relación con el nitrógeno orgánico en diferentes fracciones = Mineralizable nitrogen in anaerobiosis and its relationship with different organic n pools
(Asociación Argentina de la Ciencia del Suelo, 2014-07)Los diagnósticos de fertilidad nitrogenada usualmente utilizados no contemplan el aporte de la fracción orgánica del suelo. El nitrógeno (N) incubado en anaerobiosis (Nan), al igual que otras fracciones lábiles del N puede ... -
Nutrient dynamics in the Paraná River Delta: relationship to the hydrologic regime and the floodplain wetlands
(Elsevier, 2022-04)South America contains the most extensive freshwater wetlands in the world, associated with the floodplains of the Amazon, Orinoco and Paraná rivers. The Paraná River delta is a large wetland system strongly influenced by ... -
Los nutrientes en el ambiente
(Fertilizar, 2019-05)La gestión ambiental o gestión del medio ambiente refiere al conjunto de actividades conducentes al manejo integral del sistema ambiental con el fin de lograr adecuada calidad de vida, previniendo o mitigando los problemas ... -
Occurrence patterns of the endangered Yellow Cardinal Gubernatrix cristata in north-east Argentina: only in savannahs and at sites away from roads
(BirdLife International, 2023)The endangered Yellow Cardinal Gubernatrix cristata is under pressure from habitat loss and from capturing for the cage bird trade. In north-east Argentina it is known to be associated with the Espinal ecoregion, but no ... -
On-line speciation and quantification of four arsenical species in rice samples collected in Argentina using a HPLC–HG–AFS coupling
(2015)An investigation was carried out to explore further the analytical capabilities of the coupling high performance liquid chromatography (HPLC)–hydride generation (HG)–atomic fluorescence spectrometry (AFS) for the reliable ... -
Oportunidades para la cadena de maíz en Entre Ríos
(Facultad de Ciencias Económicas, Universidad Nacional de Entre Ríos, 2022-06)Entre Ríos representa una clara ilustración de la última expansión de frontera agrícola de la mano de la innovación tecnológica en la producción primaria, con implicancias en el sistema agroalimentario agroindustrial (SAA). ... -
Optimización de figuras y gráficos para su uso en divulgación científica a productores rurales
(Escuela de Posgrados de Comunicación, Universidad Austral, 2018-12)La comprensión de figuras de datos, tanto a nivel científico como a nivel de divulgación científica, es un tema de creciente interés en el mundo, en particular a nivel educativo. La graphicacy, la habilidad de interpretar ... -
Optimization and application of a high-resolution melting protocol in the characterization of avian infectious laryngotracheitis virus = Optimización y aplicación de un protocolo de desnaturalización de alta resolución en la caracterización del virus de la laringotraqueítis infecciosa aviar
(Elsevier, 2020-09)A previous sequence analysis of a US5 gene fragment of infectious laryngotracheitis virus (ILTV) performed in an Argentinian epidemiological study allowed to differentiate between wild and vaccine strains. This analysis ... -
Optimizing resource productivity in soybean-based sequences through long-term crop intensification
(Elsevier, 2023-10)Context: Cropping systems based on a single crop per year, such as soybean monoculture, result in an inefficient use of available resources and low productivity, and are usually related with a negative environmental impact. ...