Artículos científicos: Envíos recientes
Mostrando ítems 21-40 de 44
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Evaluación de la transición agroecológica de un establecimiento ganadero a base de pastizal de la cuenca del Salado, mediante indicadores = Evaluation of the agroecological transition through indicators of a livestock establishment based on native grasslands of the Salado basin
(Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2019-06)Son muy escasas las experiencias documentadas de manejos agroecológicos en sistemas extensivos de zonas templadas, en particular las que contemplen la utilización de pastizales naturales. Por ello nos propusimos evaluar ... -
Short-term plant community response to grassland management intended to improve forage quality for the endangered Pampas deer
(Elsevier, 2019-08)The Pampas deer is a medium-sized neotropical cervid whose population has been affected by the advancement of the agricultural frontier, poaching and depredation by introduced species. As a consequence, the population of ... -
Hydraulic conductivity and pore connectivity. Effects of conventional and no-till systems determined using a simple laboratory device
(Elsevier, 2019-03-01)Soil hydraulic conductivity is a property that describes how easily water can move through a porous space and its determination is important because it controls many soil hydrological processes. The objectives of this work ... -
Diffusivity and sorptivity determination at different soil water contents from horizontal infiltration
(Elsevier, 2019-03-15)Determination of soil hydraulic properties under non-saturated conditions is crucial in order to describe soil water dynamics in the field. The objectives of this work were: i- to determine soil water diffusivity (D) as a ... -
The influence of protein restriction during mid- to late gestation on beef offspring growth, carcass characteristic and meat quality
(Elsevier, 2019-07)The objective of this study was to determine whether crude protein intake during the last three months of gestation affects growth performance, carcass characteristics and meat quality of steer progeny. At 134 ± 14 d of ... -
Late-gestation protein restriction negatively impacts muscle growth and glucose regulation in steer progeny
(Elsevier, 2019)The objective of this study was to determine whether the amount of protein provided to cows during late gestation would affect postnatal growth and lead to changes in glucose and insulin concentrations. At 129 d of gestation, ... -
Phosphorus fertilization of a grass-legume mixture: effect on plant growth, nutrients acquisition and symbiotic associations with soil microorganisms
(2015-09)Adding P on Lotus tenuis and Festuca arundinacea, pure or mixed, on growth, nitrogen (N) and phosphorus (P) acquisition and associations with soil microorganisms was studied to investigate the establishment of Lotus for ... -
White muscle disease in three selenium deficient beef and dairy calves in Argentina and Uruguay
(Centro de Ciências Rurais, Universidade Federal de Santa Maria, 2018-05)White muscle disease (WMD), nutritional myodegeneration or enzootic muscular dystrophy, is a nutritional condition associated with selenium and/or vitamin E deficiency in ruminants. These elements are constituents of the ... -
Frequency of Neospora caninum infections in beef cow–calf operations under extensive management
(2016-03-30)The aim of this study was to evaluate the frequencies of Neospora caninum horizontal and vertical transmissions in beef cow–calf operations under three different extensive management systems: group A: 0.75 head per hectare ... -
Effect of protein restriction of Angus cows during late gestation: Subsequent reproductive performance and milk yield
(2018-06)The effect of level of CP fed during late gestation on reproductive performance and milk production was studied in multiparous cows. Sixty-eight pregnant Angus cows were used. At 121 d prepartum, cows were blocked by BW ... -
Pureza física y germinación de cariopses de Chloris gayana Kunth y Panicum coloratum L. cosechados de plantas cultivadas en un suelo alcalino-sódico
(2018-04)El objetivo del estudio fue evaluar la pureza física, el porcentaje de germinación (G), la velocidad de germinación (VG) de cariopses de Chloris gayana cv. Finecut (Cg) y Panicum coloratum cv. Klein Verde (Pc) recolectados ... -
Mejora de propiedades físicas por el uso de especies megatérmicas en un suelo sódico templado
(2015-06)Las especies megatérmicas pueden disminuir el pH del suelo y los niveles de sodicidad cuando se implantan en suelos sódicos, pero poco se sabe acerca de su capacidad para mejorar la condición física de suelos sódicos ... -
Temporal Variation of Soil Physical Quality under Conventional and No-Till Systems
(2018-04)Determination of soil physical quality (SPQ) is very important because it is related to many important soil processes. However, it is not clear which indicators should be considered in this evaluation, and information about ... -
Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method
(2017-05)Soil water sorptivity (S) is an important property that measures the soil capacity to take water rapidly under capillary forces. Usually S is not included in soil laboratory routine experiments because there is not a widely ... -
Impacto del tránsito en dos sistemas de siembra
(2015-12)Los sistemas productivos agrícolas presentan altos niveles de mecanización con tractores y máquinas cada vez más pesados. Como consecuencia, la compactación de los suelos es un problema emergente, dando como resultado el ... -
Growth, nutrient uptake and symbiosis with rhizobia and arbuscular mycorrhizal fungi in Lotus tenuis plants fertilized with different phosphate sources and inoculated with the phosphate-solubilizing bacterium Pantoea eucalypti M91
(2014-12)Background and aims: The aim of this work was to evaluate the ability of P fertilization and phosphate-solubilizing bacteria (PSB) inoculation to promote the growth of L. tenuis in typical soils of the Salado River Basin ... -
Herbicide-mediated promotion of Lotus tenuis (Waldst. & Kit. ex Wild.) did not influence soil bacterial communities, in soils of the Flooding Pampa, Argentina
(2016-02)Promoting the forage Lotus tenuis is an appealing alternative to meet the needs for cattle production in the Flooding Pampa region, Argentina. This agricultural practice requires herbicides application to remove plant ... -
Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season
(2018-08-01)Glyphosate (GLY) is a non-selective herbicide, heavily used world-wide in agriculture, especially under no-tillage (NT) management. The objectives of this work were i - to determine the temporal and vertical variation of ... -
Promotion of Lotus tenuis in the flooding Pampa (Argentina) increases the soil fungal diversity
(2018-06)Forage promotion is an increasingly used agricultural practice that requires herbicide application to remove competing plant species. This work examined the effect of the forage legume Lotus tenuis on the fungal community ... -
Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
(2013-07)Hormonal plant growth regulators (HPGRs) have been evaluated in field grown maize (Zea mays L.), but never as a tool for prevention or mitigation of heat stress. We analyzed grain yield determination of maize crops exposed ...