Resultados de búsqueda - "Pampas"

Analysis of preharvest meteorological conditions in relation to concentration of fumonisins in kernels of two genetically different maize hybrids por Moschini, Ricardo Carlos, Borsarelli, Mario, Martinez, Malvina Irene, Presello, Daniel Alberto, Ferraguti, Facundo Javier, Cristos, Diego Sebastian, Rojas, Dante Emanuel

“…Kernel FB contents were determined on kernel samples collected from an experimental susceptible hybrid (n = 35) and a Bt commercial hybrid (n = 23) planted in several growing seasons/sites from the Argentinean Pampas. Considering the effect of genetic divergence of the two maize hybrids, total kernel FB concentrations (n = 52) binary coded, were predicted appropriately by weather-based logistic regression models but underestimated in some samples severely contaminated with FB. …”
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First assessment on the influence of wind farms and high-voltage networks on ruddy-headed goose Chloephaga rubidiceps migration in Patagonia, Argentina por Pedrana, Julieta, Gorosabel, Antonella, Pütz, Klemens, Bernad, Lucía

“…Ruddy-headed goose Chloephaga rubidiceps has a migratory population that overwinters mainly in the Pampas region, Argentina, and breeds in Southern Patagonia. …”
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Soybean breeding effects on seed yield determination under contrasting water supply por Avalos Britez, Selva Rocío, Di Mauro, Guido, Abdala, Lucas J., Otegui, María Elena

“…Field trials included a representative set of widely adopted commercial varieties from maturity groups (MGs) IV–V released between 1982 and 2016, grown in the core production zone of the humid Pampas region in Argentina. Results showed a biphasic GG trend for SY, which declined at a rate of 0.64% year⁻1 until 2004 and increased at 1.9% year⁻1 from 2004 onwards. …”
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Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season por Soracco, Carlos Germán, Villarreal, Rafael, Lozano, Luis Alberto, Vittori, Santiago, Melani, Esteban, Marino, Damian Jose Gabriel

“…GLY and AMPA contents were determined in the A horizon (0–40 cm) of a loam soil from Argentinian Pampas Region, in different dates during soybean crop cycle. …”
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Light acidification in N-fertilized loess soils along a climosequence affected chemical and mineralogical properties in the short-term por Iturri, Laura Antonela, Buschiazzo, Daniel Eduardo

“…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 soils, developed on similar parent materials, within a climatic sequence (ustic to udic water regimes), and measured: 1) the extent of pH changes, 2) how these changes affected chemical and mineralogical soil properties and 3) how the soils, according to their H+ buffering substances, can react in the future if N-fertilization and acidification continue. …”
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Variations in pest bird density in Argentinean agroecosystems in relation to land use and/or cover, vegetation productivity and climate por Calamari, Noelia Cecilia, Canavelli, Sonia Beatriz, Cerezo, Alexis, Dardanelli, Sebastian, Bernardos, Jaime Nicolás, Zaccagnini, Maria Elena

“…In Argentina, particularly in the Pampas region, agricultural expansion has resulted in important changes in agroecosystems, with impacts on bird species. …”
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Agricultura familiar en el Norte de la Provincia de Buenos Aires; tipificación y evaluación de su sustentabilidad por Calcaterra, Carlos Pablo, Fillat, Francisco Antonio, Senigagliesi, Carlos

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Tree invasion in secondary grasslands diminishes herbaceous biomass and diversity: A study of mechanisms behind the process por Ferraina, Antonella, Molina, Cecilia Denisse, Mazia, Noemí, Piñeiro, Gervasio, Miranda, Isabel, Chaneton, Enrique José

“…In particular, during the last decade several authors have warned about the magnitude of the ongoing tree invasion and their potential impacts on the diversity and composition of the Pampas grasslands (Cuevas & Zalba 2010; Simberloff et al. 2010; Chaneton et al. 2013). …”
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Environmental and agronomic determinants of hairy vetch (Vicia villosa Roth) seed yield in rainfed temperate agroecosystems por Renzi Pugni, Juan Pablo, Garayalde, Antonio Francisco, Brus, Jan, Pohankova, Tereza, Smýkal, Petr, Cantamutto, Miguel Angel

“…The study comprises a database of 96 fields dedicated to HV seed production distributed in the Pampas region of Argentina, under a wide range of soil and weather conditions. …”
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Manipulation of the post-flowering source/sink ratio differentially affects protein composition and gluten quality in contrasting bread wheat genotypes por Arata, Agustín Francisco, Lazaro, Laura, Tranquilli, Gabriela, Arrigoni, Adriana C., Dinolfo, María Inés, Rondanini, Deborah Paola

“…For two years, rainfed field trials were carried out in the Humid Pampas in Southern South America, applying manipulative S/S treatments (shading, defoliation, thinning, and trimming). …”
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Soil hydro-physical variables and crop residues determinate runoff soil loss, and glyphosate and AMPA concentration in the aqueous phase under simulated rainfall events por Sainz, Daiana Soledad, Behrends Kraemer, Filipe, Carfagno, Patricia, Eiza, Maximiliano Joaquin, Chagas, Celio Ignacio

“…Soil structural degradation and water erosion processes were observed even in no-tillage schemes in the Pampas region. Within these conservation systems, agrochemical application per hectare is one of the highest globally. …”
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Migration Routes and Stopover Sites of Upland Geese Chloephaga Picta in South America por Pedrana, Julieta, Pütz, Klemens, Bernad, Lucía, Seco Pon, Juan Pablo, Gorosabel, Antonella, Muñoz, Sebastián Darío, Isacchd, Juan Pablo, Matuse, Ricardo, Blanke, Olivia, Lüthif, Benno, Lunardellig, Melina, Rojas, Pablo

“…The Upland Goose (Chloephaga picta picta) is a migratory species of South America, which breeds from September to April in Patagonia (Argentina and Chile) and winters from May to September in the southern Pampas (Argentina). Despite some protection in both countries, this species is still persecuted and large numbers are killed by unregulated hunting. …”
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Protocolo Relevamiento de la Infraestructura Hídrica. Su aplicación en viviendas y emprendimientos agropecuarios familiares y rurales de la región pampeana por Puricelli, Marino Marcelo, Moreyra, Alejandra Esther

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Assessing Soil Sulfur (S) Fractions as Indicators of Long-Term Fertilization Residual Effects por Biassoni, María Micaela, Vivas, Hugo, Carreira, Daniel Antonio, Gutierrez Boem, Flavio Hernán, Salvagiotti, Fernando

“…These results suggest that the Sin and SOC fractions explained the residual effects of 10 years of S fertilization in a Typic Argiudoll of the Pampas region, and may serve as reliable soil indicators for assessing long-term S fertility.…”
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Increased cropping intensity improves crop residue inputs to the soil and aggregate-associated soil organic carbon stocks por Novelli, Leonardo Esteban, Caviglia, Octavio, Piñeiro, Gervasio

“…Our objective was to evaluate the relationships between CI and crop residue input with SOC storage and soil aggregation in two contrasting northeastern Argentinean Pampas soils under no-till. Two parallel experiments were established in a Mollisol and a Vertisol evaluating six cropping sequences, starting from soybean monoculture and increasing the number of crops per year and crop diversity. …”
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Transgene escape and persistence in an agroecosystem: the case of glyphosate-resistant Brassica rapa L. in central Argentina por Pandolfo, Claudio Ezequiel, Presotto, Alejandro Daniel, Torres Carbonell, Francisco Javier, Ureta, Maria Soledad, Poverene, María Mónica, Cantamutto, Miguel Angel

“…In temperate regions of South America and especially in the Argentine Pampas region, this species is widely distributed. …”
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Relative soil water content as a factor for wind erodibility in soils with different texture and aggregation por de Oro, Laura Andrea, Colazo, Juan Cruz, Avecilla, Fernando, Buschiazzo, Daniel Eduardo, Asensio, Carlos

“…So, our objective was to determine HRc in soils with different textures in Semiarid Argentinian Pampas Region (SAPR) using uncrushed soil samples under variable wind velocities. …”
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Diffusivity and sorptivity determination at different soil water contents from horizontal infiltration por Villarreal, Rafael, Lozano, Luis Alberto, Melani, Esteban, Salazar, María Paz, Otero, María Florencia, Soracco, Carlos Germán

“…The objectives of this work were: i- to determine soil water diffusivity (D) as a function of soil moisture with a simple lab set-up, based on Whisler et al. (1968) methodology, from soil moisture profiles obtained using capacitive sensors in three contrasting soils from Argentinean Pampas Region; and ii- to obtain a function that allows to determine sorptivity (S) values in the whole moisture range from diffusivity data. …”
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El periurbano, un paisaje en continua transformación : caso de estudio Norte de la Provincia de Buenos Aires, partido de Pergamino por Sticconi, Maria Eugenia

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The Known Distribution and Ecological Preferences of the Tick Subgenus Boophilus (Acari: Ixodidae) in Africa and Latin America por Estrada-Peña, Agustín, Bouattour, A., Camicas, J. -L., Guglielmone, Alberto, Horak, I., Jongejan, F., Latif, A., Pegram, R., Walker, A.R.

“…The tick is mainly associated to the biomes of Chaco and Pampas in Argentina, the North-central moist Andes, the Atlantic forest (southern range) and the moist Meso-American vegetation (northern range). …”
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