Artículos científicos: Envíos recientes
Mostrando ítems 101-120 de 160
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Aplicación del modelo DRASTIC en la cuenca del arroyo Las Conchas, Entre Ríos
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2011-08)La demanda de la sociedad respecto al cuidado de la salud y del ambiente es cada vez mayor, requiriéndose la evaluación de potenciales impactos negativos producidos por las prácticas agropecuarias, entre ellos la contaminación ... -
Sediment and nutrient deposition in different riparian forests and floods of the Middle Paraná River
(Wiley, 2019-10)Sedimentation processes are important to the dynamics of lowland fluvial systems and depend on the characteristics of floods and of riparian ecosystems. The few known studies for the Paraná River system analyzed only summer ... -
Fracción de carbono en la biomasa de Prosopis affinis sprengel (Fabaceae) en un bosque nativo del espinal (Argentina)
(Facultad de Agronomía, Universidad de Buenos Aires, 2019)La estimación del carbono (C) almacenado en la biomasa forestal requiere información precisa acerca de la fracción de C por especie y por componente de la biomasa. Nuestro objetivo fue estimar la fracción de C en los ... -
Multiple-Herbicide resistance in a 2,4-D–Resistant waterhemp (Amaranthus tuberculatus) population from Nebraska
(Cambridge University Press; Weed Science Society of America, 2017-11)A 2,4-D-resistant tall waterhemp population (FS) from Nebraska was evaluated for resistance to other TIR1 auxin receptor herbicides and to herbicides having alternative mechanisms of action using greenhouse bioassays and ... -
Range contraction and conservation of the endangered Yellow Cardinal
(Elsevier, 2019-05-03)The Yellow Cardinal (Gubernatrix cristata) is distributed in Argentina, Uruguay and Brazil, inhabiting environments of xerophytic woodland and savannah; it is considered globally Endangered since 1994. Populations are under ... -
Impact of crop aerial and root biomass inputs on soil nitrifiers and cellulolytic microorganisms
(Elsevier, 2019)In agricultural no-till systems, crop residue management has an important impact on the activity and abundance of soil microorganisms, which play a crucial role in soil health and quality. In these systems, when cover crops ... -
Improving resource productivity at a crop sequence level
(Elsevier, 2019-04)The challenge to increase agricultural production with a minimum environmental impact requires to reach the maximum efficiency in the capture and use of resources such as photosynthetically active radiation (PAR), water, ... -
Pathogenicity of Fusarium graminearum and F. meridionale on soybean pod blight and trichothecene accumulation
(Wiley, 2016-12)Soybean (Glycine max) is the most important crop in Argentina. At present Fusarium graminearum is recognized as a primary pathogen of soybean in several countries in the Americas, mainly causing seed and root rot and pre‐ ... -
Efecto del fuego o el corte sobre la producción y la calidad forrajera de un pajonal dominado por Panicum prionitis = Effect of fire or mowing on the forage supply and quality of a Panicum prionitis tall grassland
(Asociación Argentina de Producción Animal, 2017-06)El aumento de superficie destinada a la agricultura ha provocado el desplazamiento de la ganadería hacia ambientes tradicionalmente clasificados como “marginales”. Este es el caso de islas y campos bajos del valle de ... -
Resiliencia de un pajonal de Panicum prionitis Nees bajo distintas alternativas de manejo
(Asociación Argentina de Ecología, 2016-12)Los “pajonales” de Panicum prionitis (“paja de techar”) son una de las comunidades de mayor extensión en las islas y el valle de inundación del río Paraná. Debido a sus tasas de crecimiento elevadas y a su baja calidad ... -
Anidamiento de paloma torcaza (Zenaida auriculata) en rastrojos de sorgo
(Universidad Nacional del Litoral, 2016-10)La paloma torcaza (Zenaida auriculata) es una de las especies de aves más co-munes y abundantes de Argentina, con gran capacidad de adaptación a los am-bientes modificados por el hombre. Un aspecto clave del éxito de esta ... -
Desarrollo de un método para evaluar el daño ocasionado por aves en cultivos comerciales de soja recién emergida = Development of a method for assessing damage caused by birds in sprouting soybean in commercial crops
(Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Chile, 2016-12)El cultivo de soja (Glycine max) es uno de los principales rubros productivos en Sudamérica. Algunas especies de aves pueden consumir los cotiledones de las plántulas de soja recién emergidas causando daño al cultivo. Con ... -
Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects
(Museo Argentino de Ciencias Naturales Bernardino Rivadavia, 2018)Biodiversity inventories remain fundamental tools for biodiversity conservation. Neotropical biota has poor faunal inventories. In Argentina, the avifauna of the province of Entre Ríos is still not well known. Here, we ... -
Influences of succession and erosion on bird communities in a South American highland wooded landscape
(Elsevier, 2015-08-01)In South American highland forests, domestic grazing can cause major changes in forest structure and soil quality thereby altering resources available to avian communities. However, the consequences of changes in variability ... -
Long-term association of Tyrannus savana and Sturnella superciliaris density with land cover and climatic variables in agroecosystems of Argentina
(Aves Argentinas/Asociación Ornitológica del Plata, 2016-12)Agricultural expansion and intensification resulted in important changes in the agricultural landscape of the Pampas region, Argentina. We used linear mixed models to analyze the relationship between environmental variables ... -
Patch and landscape responses of bird abundance to fragmentation in agroecosystems of east-central Argentina = Abondance d'oiseaux dans les îlots et les paysages à la suite de la fragmentation dans des agrosystèmes du centre-est de l'Argentine
(Society of Canadian Ornithologists and Bird Studies Canada, 2018)Forest fragmentation in agroecosystems is linked to declines of avian species worldwide. Agriculture has greatly reduced native forest cover in east-central Argentina. Assessing the influence of fragmentation on forest ... -
Variations in pest bird density in Argentinean agroecosystems in relation to land use and/or cover, vegetation productivity and climate
(CSIRO, 2018-12-05)Context: Changes in environmental conditions may influence bird populations, including pest bird species, and their distribution. In Argentina, particularly in the Pampas region, agricultural expansion has resulted in ... -
Developments in the “profil cultural” method for an improved assessment of soil structure under no-till
(Elsevier, 2017-11)In France, agronomists have studied the effects of cropping systems on soil structure using a field method that is based on a visual description of the soil structure. This “profil cultural” method was designed as a field ... -
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 ... -
Stover quality and soil organic carbon in long-term nitrogen-fertilized maize
(Alliance of Crop, Soil, and Environmental Science Societies, 2014-09)Nitrogen fertilization often increases maize (Zea mays L.) grain yield but reduces the C/N ratio of stover returned to the soil, which may affect the soil organic carbon (SOC) balance. This study evaluated the long-term ...