Artículos científicos: Envíos recientes
Mostrando ítems 61-80 de 134
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Microbial activity effect on aggregate stability after residue addition in a Mollisol and a Vertisol in the Pampas, Argentina
(Elsevier, 2020-12)Crop residue addition to the soil promotes an increase in microbial activity and, as a consequence, may improve soil aggregate stability. However, this effect may be different in soils with contrasting aggregation agents. ... -
Crop nitrogen status of early- and late-sown maize at different plant densities
(Elsevier, 2020)In maize (Zea mays L.) crops, nitrogen (N) status at silking (R1) has been used to predict grain yield (GY) response to N fertilization and to develop strategies to manage crop nutrition in order to match N supply with ... -
Conyza bonariensis as an alternative host for Colletotrichum species in Argentina
(Wiley, 2020-10)Aims: This study investigated the diversity of Colletotrichum isolates recovered from Conyza bonariensis leaves through the use of morphological characteristics, growth rate, carbon sources utilization and phylogenetic ... -
Antifungal susceptibility profile and molecular identification of Cyp51C mutations in clinical and environmental isolates of Aspergillus flavus from Argentina
(Wiley, 2020-10)Background: The emergence of azole resistance in non‐fumigatus Aspergillus strains is on the raise. Objectives: To study the susceptibility profiles and the molecular mechanisms of azole resistance of environmental and ... -
Ecuaciones alométricas de biomasa aérea para Prosopis nigra (Griseb.) Hieron. en bosques de Entre Ríos (Argentina)
(Facultad de Agronomía, Universidad de Buenos Aires, 2020)En un escenario de cambio climático global dado por el aumento de las emisiones de gases de efecto invernadero, la estimación del carbono almacenado en los ecosistemas forestales es fundamental y requiere herramientas ... -
Enfermedades del sorgo en el centro oeste de Entre Ríos
(Asociación Argentina de Fitopatólogos, 2019-10)En Argentina, el sorgo es afectado negativamente por diversas enfermedades que comprometen la producción de grano y forraje, así como el valor nutritivo del cultivo. La importancia relativa de cada una, en cada región y ... -
Water and solar radiation productivity of double-crops in a humid temperate area
(Southern Cross Publishing, 2011-12)The intensification of agricultural systems including sequential double-crops provides a reliable platform to increase the water and solar radiation use in many humid temperate areas of South America, which are predominantly ... -
Defoliation affects soybean yield depending on time and level of light interception reduction
(Southern Cross Publishing, 2012-07)Light interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or percentage ... -
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering
(Southern Cross Publishing, 2019-12)Heat stress affects physiological traits and biomass production in major crops, including maize. We researched the responses of maximum efficiency of photosystem II (Fv/Fm), relative cell injury (RCI), stomatal conductance ... -
Predicting soil test phosphorus decrease in non-P-fertilized conditions
(Wiley, 2020-02)Monitoring the availability of phosphorus (P) in soil under continuous cropping facilitates finding deficiency in crops and contributes to improving crop growth and nutrient management models. Soil P availability for crops ... -
Assessing soil P fractions changes with long‐term phosphorus fertilization related to crop yield of soybean and maize
(Wiley, 2020-02)Long-term P fertilization increases soil phosphorus (P) labile fractions, which can be associated with crop P uptake and grain yield and are useful to improve fertilizer recommendations. Research aims were to evaluate in ... -
Probabilidad de ocurrencia de temperaturas máximas y mínimas medias decádicas en Inta Paraná y zona de influencia (Entre Ríos, Argentina)
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 1995)La producción agropecuaria depende en gran medida del comportamiento de las variables meteorológicas durante el ciclo productivo. Sin embargo ese comportamiento, aunque aleatorio, responde a ciertos modelos probabilísticos ... -
A functional classification of 63 common Poaceae in the “Campos” grasslands of South America
(Asociación Argentina de Ecología, 2019-08)The natural grasslands that form part of the “Campos” of South America contain a large number of species at the paddock level (high α diversity), but little differentiation among paddocks (low β diversity). Thus, forage ... -
Addition of organic and inorganic amendments to regenerate the surface structure of silty soils
(Wiley, 2019-11-30)The widespread degradation of the structure of silty soils under no till systems (NT) that has been observed in recent years is characterized by the presence of a platy structure (P) near the soil surface. Under these ... -
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 ...