Artículos científicos: Envíos recientes
Mostrando ítems 101-120 de 134
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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 ... -
Spatio-Temporal Nitrogen Fertilizer Response in Maize: Field Study and Modeling Approach
(American Society of Agronomy, 2016)Maize (Zea mays L.) yield and its response to nitrogen (N) are affected by the spatial variability of the interaction between weather, management, and soil properties. The objectives of this study were (i) to evaluate the ... -
Stabilization of new carbon inputs rather than old carbon decomposition determines soil organic carbon shifts following woody or herbaceous vegetation transitions
(Springer, 2016-12)Background and aims: Although numerous studies have quantified the effects of land-use changes on soil organic carbon (SOC) stocks, few have examined simultaneously the weight of carbon (C) inputs vs. outputs in shaping ... -
Effects of fire disturbance on bird communities and species of mountain Serrano forest in central Argentina
(Taylor & Francis, 2014)In central Argentina, Serrano forest has a long history of fire disturbance; however, the impact of fire on avifauna remains unknown. We compared the avian–habitat relationships in forest patches with low, moderate, and ... -
Evaluation of Agricultural Production Systems Simulator as yield predictor of Panicum virgatum and Miscanthus x giganteus in several US environments
(Wiley, 2017)Simulation models for perennial energy crops such as switchgrass (Panicum virgatum L.) and Miscanthus (Miscanthus x giganteus) can be useful tools to design management strategies for biomass productivity improvement in ... -
¿Eligen las palomas y cotorras los lotes de soja (Glycine max) enemergencia? Un caso de estudio en agroecosistemas de Entre Ríos, Argentina = Do pigeons and parakeets choose soybean (Glycine max) crops during the emergence? A case studyon agroecosystems in Entre Ríos, Argentina
(Instituto de Biología, Universidad Nacional Autónoma de México, 2016-12)Las palomas y cotorras pueden resultar perjudiciales para cultivos anuales en algunas regiones de Sudamérica. En este estudio analizamospatrones de uso de hábitat de las palomas torcaza (Zenaida auriculata), manchada ... -
Differential susceptibility of Conyza bonariensis biotypes to glyphosate and ALS-Inhibiting herbicides in Argentina
(Scientific Research Publishing, 2015)The aim of this study was to compare control of three stages biotypes (rosette, bolting, and repro- ductive stage) of Conyza bonariensis glyphosate susceptible biotype (S) and tolerant biotype (T) to glyphosate with ... -
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 ... -
Selection of potential biological control of Exserohilum turcicumwith epiphytic microorganisms from maize = Selección de microorganismos epifíticos de maíz como potenciales agentes debiocontrolde Exserohilum turcicum
(Asociación Argentina de Microbiología, 2015)The aims of this study were to select microbial isolates from phyllosphere of maizeand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete ... -
Oral acute toxicity of imidacloprid, thiamethoxam and clothianidin in eared doves: a contribution for the risk assessment of neonicotinoids in birds
(Elsevier, 2018-09-10)Neonicotinoids have recently been demonstrated to cause direct negative impacts on birds from North America and Europe. To further understand the impact of these compounds on bird species and to improve risk assessment ... -
Artificial perches promote vegetation restoration
(Springer, 2016-07)Native ecosystems are continuously being transformed mostly into agricultural lands. Simultaneously, a large proportion of fields are abandoned after some years of use. Without any intervention, altered landscapes usually ... -
Modelling forage yield and water productivity of continuous crop sequences in the Argentinian Pampas
(Elsevier, 2018-01)In recent years, the use of forage crop sequences (FCS) has been increased as a main component into the animal rations of the Argentinian pasture-based livestock systems. However, it is unclear how year-by-year rainfall ... -
Forage yield, water- and solar radiation-productivities of perennial pastures and annual crops sequences in the south-eastern Pampas of Argentina
(Elsevier, 2018-05-15)Livestock production systems of Argentina show an ongoing process of change in the composition of their forage base, with a gradual increase in the proportion of their area assigned to forage crop sequences (FCS) −in ... -
Water Footprint in paddy rice systems. Its determination in theprovinces of Santa Fe and Entre Ríos, Argentina
(Elsevier, 2015-09)In the context of social responsibility and, of the directives aimed at an integral management of natural resources, the Water Footprint (WF) has been widely spread as an indicator that contributes to a safe and sustainable ... -
Evaluation of soil degradation produced by rice crop systems in a Vertisol, using a soil quality index
(2017-03)One of the priorities of land planners is the development of methodologies that allow the detection of negative impacts on soils. The objective of this work was to evaluate the impact of rice production systems that use ... -
Multi-level analysis of bird abundance and damage to crop fields
(Elsevier, 2014-12)Bird damage to agricultural crops is an important cause of economic loss for farmers worldwide. Predictive habitat models relating bird abundance and damage to characteristics of the agricultural environment at multiple ... -
Análisis productivo y reproductivo de vacas lecheras Holstein, Pardo Suizo y sus cruzas en un sistema a pastoreo = Analysis of production and reproduction of Holstein, Brown Swiss and their crossbreed dairy cows in a grazing system.
(Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias, 2014-06)El objetivo del trabajo fue comparar aspectos productivos y reproductivos de vacas pertenecientes a tres genotipos lecheros, en un sistema a pastoreo con suplementación de Entre Ríos, Argentina. Se analizaron datos ... -
Contribution of honeybees to soybean yield
(Springer, 2018-02)Despite the economic importance of soybean [Glycine max (L.) Merr.], knowledge on the contribution of entomological pollination on seed yield is scarce. This study estimates the production of soybean resulting from pollination ... -
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 ... -
Fitotoxicidad de un formulado comercial de glifosato sobre Lemna gibba L.
(Asociación Argentina de Ecología, 2018-04)El objetivo fue evaluar la fitotoxicidad de un formulado comercial de glifosato (sal potásica al 62%, equivalente a 506 g p.a./L) sobre Lemna gibba, a campo y en laboratorio. El estudio a campo se desarrolló en un embalse ...