Listar Artículos científicos por fecha de publicación
Mostrando ítems 21-40 de 160
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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 ... -
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 ... -
Palmitoleic acid reduces intramuscular lipid and restores insulin sensitivity in obese sheep
(Dove Medical Press, 2014-11-20)Se utilizaron ovejas obesas para evaluar los efectos de la infusión de ácido palmitoleico (C16: 1 cis-9) sobre la lipogénesis y los niveles de insulina circulante. La infusión de 10 mg / kg de peso corporal (PC) / día C16: ... -
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 ... -
Efecto de la quema controlada sobre el banco de semillas de gramíneas en diferentes parches del bosque de calden en la región semiárida central Argentina
(2015)El banco de semillas del suelo es la principal reserva de propágulos con que cuenta una comunidad vegetal para su mantenimiento, regeneración y perpetuación. Las quemas controladas pueden producir cambios en su composición ... -
Cow management modulates gene expression in the mammary gland, a possible epigenetics role
(2015)Epigenetics, the study of the change in gene expression that occurs without alteration in DNA sequences, leads to modifications that can be passed on by mitosis. It has been known for many years that cow management during ... -
Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
(2015)The objective of this work was to study the sorption and transport of imazapyr (IMZ) in two soils with different physical–chemical properties, subject to long-term conventional tillage (CT) and no-tillage (NT) systems. ... -
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 ... -
Effect of temperature on life history traits during immaturedevelopment of Aedes aegypti and Culex quinquefasciatus (Diptera:Culicidae) from Córdoba city, Argentina
(Elsevier, 2015-06)We investigated how ambient temperature under fluctuating conditions affects the larval–pupal immature traits of Aedes aegypti and Culex quinquefasciatus mosquitoes from Córdoba city, Argentina, and established each species ... -
The ecohydrology of ecosystem transitions: a meta‐analysis
(Wiley, 2015-07)A vast body of literature demonstrated that anthropogenic disturbances such as overgrazing and fire are key drivers of abrupt transition between vegetation types in ecosystems. In this study, we propose that the hydrological ... -
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 ... -
High quality residues from cover crops favor changes in microbial community and enhance C and N sequestration
(2016)The objective of the study was to evaluate the effect of a change in management on the soil microbial community and C sequestration. We conducted a 3-year field study in La Pampa (Argentina) with rotation of sorghum (Sorghum ... -
Effect of different cover crops on C and N cycling in sorghum NT systems
(2016)In many no-till (NT) systems, residue input is low and fallow periods excessive, for which reasons soil degradation occurs. Cover crops could improve organic matter, biological activity, and soil structure. In order to ... -
RWEQ wind erosion predictions for variable soil roughness conditions
(2016)The soil surface is a main factor in all wind erosion prediction models including the Revised Wind Erosion Equation (RWEQ). The objetive of this study was to test the erodibility of two typical soils of the semiarid ... -
Direct field method for root biomass quantification in agroecosystems
(2016)The present article describes a field auger sampling method for row-crop root measurements. In agroecosystems where crops are planted in a specific design (row crops), sampling procedures for root biomass quantification ... -
Primera cita de Ramularia collo-cygni para la provincia de La Pampa (Argentina) = First reported case of Ramularia collo-cygni for la Pampa province, Argentina
(Facultad de Agronomía, UNLPam, 2016)En la provincia de La Pampa, la superficie del cultivo de cebada se incrementó sustancialmente en los últimos cuatro años. El salpicado necrótico de la cebada, cuyo agente etiológico es Ramularia collo-cygni, está ... -
Germinación y crecimiento inicial de poblaciones de Trichloris crinita (lag.) Parodi ante condiciones de estrés hídrico = Germination and seedling growth of Trichloris crinita (lag.) Parodi under water stress conditions
(Facultad de Agronomía, UNLPam, 2016)Los pastizales naturales de Argentina se encuentran degradados por las inadecuadas prácticas de manejo desarrolladas durante varios años. Muchas especies nativas se encuentran en vías de experimentación como cultivo de ... -
Assessing the glyphosate tolerance of Lotus corniculatus and L. tenuis to perform rhizoremediation strategies in the Humid Pampa (Argentina)
(2016)The broad-spectrum herbicide glyphosate (N – phosphonomethylglicine) is the most common pesticide used in the Humid Pampa, the main agricultural region in Argentina. According to agronomical practices and topogeographical ... -
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 ... -
Influencia del uso de suelos sobre indicadores físicos de compactación = Influence of use of soil on physical indicators compaction
(Facultad de Agronomía, UNLPam, 2016)Los cambios en el uso de la tierra producen importantes modificaciones en la estructura y funcionamiento de los ecosistemas. Asociado con la disminución en los contenidos de materia orgánica (MO) se estarían produciendo ...