Artículos científicos: Envíos recientes
Mostrando ítems 121-140 de 160
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A wind-tunnel study on saltation and PM10 emission from agricultural soils
(Elsevier, 2016-09)PM10 emission depends on the texture and the aggregation state of a soil. A decisive but less studied factor is the saltation fraction of the soil (fraction between 100 and 500 μm). Six soils of contrasting textures were ... -
Brucella suis in armadillos (Chaetophractus villosus) from La Pampa, Argentina
(Elsevier, 2014-06)Brucellosis is a zoonotic disease transmitted from an animal reservoir to humans. Both, wildlife and domestic animals, contribute to the spreading of these zoonosis. The surveillance of the animal health status is strictly ... -
Light acidification in N-fertilized loess soils along a climosequence affected chemical and mineralogical properties in the short-term
(Elsevier, 2016-04)Some evidences indicate that N-fertilization of crops decreased pH values of loess soils of the Argentinean Pampas in the last decades. We analyzed the A-horizons of four N-fertilized (F) and non-fertilized (NF) paired ... -
Presencia de Acanthamoeba spp. en agua para consumo ganadero en la provincia de La Pampa, Argentina = Presence of Acanthamoeba spp. in watering trough in La Pampa province, Argentina
(Asociación Argentina de Microbiología, 2017-09)Las amebas de vida libre del género Acanthamoeba incluyen cepas patógenas y no patógenas que actualmente se encuentran clasificadas en 18 genotipos diferentes (T1-T18). Se llevó a cabo un relevamiento para determinar la ... -
The relevance of methane emissions from beef production and the challenges of the Argentinean beef production platform
(Elsevier, 2014-11)The livestock sector faces the challenge to respond to the growing demand for animal protein from an expanding population while reducing environmental impact through GHG emissions. Globally about 2.836 million tons of ... -
Effect of temporal resolution of wind data on wind erosion prediction with the Revised Wind Erosion Equation (RWEQ) = Efecto de la resolución temporal de los datos de viento en la predicción de la erosión eólica con el modelo RWEQ
(Asociación Argentina de la Ciencia del Suelo, 2013-12)In wind erosion modelling and assessment, wind speed is a crucial variable. Available records for large regions of the world generally show relatively low temporal resolution. The effect of using wind data of different ... -
Determinación del intervalo hídrico óptimo en usoles de la región semiárida pampeana = Determination of least limiting water range in ustolls of the semarid pampas
(Asociación Argentina de la Ciencia del Suelo, 2017)En la región semiárida pampeana el intervalo hídrico óptimo (IHO) no ha sido utilizado para valorar cambios en la calidad del suelo relacionados al manejo. El objetivo del trabajo fue caracterizar y evaluar el IHO en un ... -
Water use of wheat, corn and sunflower in the semiarid pampas = Uso del agua por trigo, maíz y girasol en la región semiárida pampeana
(Asociación Argentina de la Ciencia del Suelo, 2017)Crop water use in semiarid environments allows designing management strategies to improve water use efficiency. Our objective was to estimate wheat (Triticum aestivum L.), maize (Zea mays L.) and sunflower (Helianthus ... -
Evaluación de indicadores biológicos en suelos de la región semiárida pampeana central = Evaluation of biological indicators in soils of the central semiarid Pampa region
(Asociación Argentina de Ecología, 2018-04)En la región semiárida pampeana aún no se han usado indicadores biológicos para valorar cambios en la calidad del suelo relacionados con el uso de la tierra. El objetivo de este trabajo fue caracterizar, evaluar y obtener ... -
Epidemiology of cattle diseases in the northeast of La Pampa, Argentina = Epidemiología de enfermedades del bovino en el nordeste de La Pampa, Argentina
(Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias, 2014)A cross-sectional survey was carried out on 350 farms in the north east of La Pampa Province, Argentina. The goal was to record the prevalence of cattle diseases reported by farmers. Farms were stratified into three ... -
Análisis del carbono total, orgánico e inorgánico en suelos de la región semiárida pampeana argentina = Assessment of total, organic and inorganic carbon in soils of semiarid argentinian pampas
(Asociación Argentina de la Ciencia del Suelo, 2016)Existe una fuerte motivación por el desarrollo de métodos precisos y exactos para determinar carbono (C) en suelos, debido a la importancia agronómica y medioambiental de este elemento. En suelos calcáreos el C total (CT) ... -
Valores umbrales de algunos indicadores de calidad de suelos en molisoles de la región semiárida pampeana = Threshold values of some soil quality indicators in the semiarid pampas
(Asociación Argentina de la Ciencia del Suelo, 2016)Los objetivos del trabajo fueron evaluar los efectos de variaciones en los contenidos de materia orgánica sobre propiedades edáficas e identificar indicadores simples y de fácil determinación que sirvan para caracterizar ... -
Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century
(Elsevier, 2015-12)Considering uncertainties regarding climate variability, the objective of this study was to make a long-term (1901–2011) comparative assessment of the impact of land-use decision (changes in the cultivated area) and ... -
Comparing adjacent cultivated and “virgin” soils in wind erosion affected environments can lead to errors in measuring soil degradation
(Elsevier, 2016-02)Soil degradation has been frequently evaluated by comparing cultivated soils with paired reference pedons. Evaluated were some physical and chemical properties of cultivated and reference soils of a semiarid environment ... -
Spectral indices from aerial images and their relationship with properties of a corn crop
(Springer, 2018-03)Identification of areas with similar restrictions to crop productivity could improve the efficiency to manage agricultural systems, guarantee stable yields, and reduce the effect of droughts in rainfed systems. The ability ... -
Patrones de índice verde normalizado (IVN) en pastizales de la provincia de Buenos Aires: su asociación con comunidades vegetales y suelos
(2014-12)A partir de información satelital histórica (MODIS 2000-2010), se identificaron patrones anuales de índice verde normalizado (IVN) pertenecientes a áreas ocupadas por pastizales o pasturas de la Pampa Deprimida, y se asoció ... -
Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat
(2017-12)Imazapyr and imazamox are frequently applied postemergence to control grass and broadleaf weeds in imidazolinone-resistant sunflower in Argentina. Herbicide carryover to rotational crops represents a disadvantage of these ... -
Aspergillus fuscicans (Aspergillaceae, Eurotiales), a new species in section Usti from Argentinean semi-arid soil
(2018-03)Aspergillus fuscicans, a new species within Aspergillus section Usti from Argentinean semi-arid soil is introduced. Molecular, morphological and physiological studies were conducted, based on sequence analysis of partial ... -
Dissection of ancestral genetic contributions to Creole goat populations
(2018-01)Goats have played a key role as source of nourishment for humans in their expansion all over the world in long land and sea trips. This has guaranteed a place for this species in the important and rapid episode of livestock ... -
Sorption, desorption and leaching potential of sulfonylurea herbicides in Argentinean soils
(2015-02-25)The sulfonylurea (SUs) herbicides are used to control broadleaf weeds and some grasses in a variety of crops. They have become popular because of their low application rates, low mammalian toxicity and an outstanding ...