Resultados de búsqueda - "Pampas"
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Spectral indices from aerial images and their relationship with properties of a corn crop
Publicado 2018“…The purpose of the study was to calibrate different vegetation indices regarding their capacity to identify water and nitrogen availability for rainfed corn crops in the semiarid Pampas of Argentina. A field experiment with corn with a control without fertilization (N0), and fertilized with 120 kg ha−1 of nitrogen (N120) was used. …”
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Biological nitrogen fixation in field pea and vetch: Response to inoculation and residual effect on maize in the Pampean region
Publicado 2020“…The aims of this study were to i) quantify the contribution of N derived from biological nitrogen fixation (N_BNF) in vetch (Vicia sativa L. or Vicia villosa L.) and field pea (Pisum sativum) in the Central Pampas region of Argentina, ii) evaluate the response to seed inoculation in terms of %N derived from air (%Ndfa), biomass production and N_BNF in both crops and iii) determine grain yield response to nitrogen fertilization of maize (Zea mays L.) sown after field pea and vetch with and without inoculation. …”
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Phylodynamics of sunflower chlorotic mottle virus, an emerging pathosystem
Publicado 2020“…The virus was detected exclusively in the Pampas region (Entre Ríos, Santa Fe, Córdoba, La Pampa and Buenos Aires provinces). …”
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Conservation of ecosystem services in Argiudolls of Argentina
Publicado 2020“…Mollisols are a fundamental component of global agricultural production. In the Argentine Pampas region, 65% of the Mollisols belong to Argiudoll great group. …”
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Nitrogen diagnosis for double-cropped maize
Publicado 2022“…Eleven field experiments were conducted in the Southeastern Argentinean Pampas from 2018 to 2021. Five fixed N rates (0, 30, 60, 90, and 120 kg N ha-1) were evaluated at each site. …”
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Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina
Publicado 2017“…In 2003 we started the first long-term, large-scale bird monitoring program in agroecosystems of central Argentina, in portions of the Pampas and Espinal ecoregions. Using data from this program, we evaluated the effect of land use and cover extent on birds between 2003-2012, accounting for imperfect detection probabilities using a Bayesian hierarchical, multi-species and multi-season occupancy model. …”
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Soil nitrous oxide emissions in a maize (Zea mays L.) crop in response to nitrogen fertilisation
Publicado 2024“…This study sought to quantify N2Oemissions generated from soil and the residual nitrate (NO3−) up to 2 m depth in field conditions in amaize crop under supplementary irrigation and fertilised with two nitrogen (N) sources (UAN andurea) at increasing N rates (0, 80, 160 and 250 kg N ha−1) in the Semi-arid Argentine Pampas.Methods. Throughout the crop cycle, emissions were monitored daily with static chambersduring the first week after fertilisation; then sampling frequency was gradually reduced until theend of the experiment. …”
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Pelletized Organomineral vs. Inorganic Nitrogen and Phosphorus Fertilizers: Impact on Wheat Nutritional Status, Productivity, and Grain Quality
Publicado 2024“…Three field trials were conducted in the Argentinean Pampas to compare OMFs enriched with N and P (OMF + N and OMF + P) against urea and monoammonium phosphate, respectively. …”
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Photoperiod and vernalization requirements in Argentinian oat genotypes
Publicado 2025“…For this, two experiments were carried out in the Argentinian Pampas, where nine oat genotypes were sown on six sowing dates (from June to December, <10 h to >15 h photoperiod) and three vernalization treatments (40, 20, and 0 days at 4°C). …”
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Cover crops and integrated management reduce pesticide residues in soils and water: Pathways towards cleaner production in Argentine agricultura
Publicado 2025“…The potential of cover crops and integrated management as a cleaner production strategy for grain systems in the Argentinian Pampas was assessed in this study. A four-year field comparison of conventional farmer practices with cover crops and integrated management, through practices aimed at reducing pesticide use was conducted. …”
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A process-based numerical approach to estimate forest groundwater consumption in flatland petrocalcic soils
Publicado 2020“…Grasslands are extensively distributed in flatland areas around the world such as the Pampas in South-America. It is one of the most economically productive landscapes and, as in other regions, they are being replaced by forests at increasing rates. …”
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El fenómeno ENSO y la agricultura pampeana: impactos económicos en trigo, maíz, girasol y soja
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Analysis of preharvest meteorological conditions in relation to concentration of fumonisins in kernels of two genetically different maize hybrids
Publicado 2021“…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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Land-use change affects soil hydro-physical properties in Mollisols of semiarid Central Argentina
Publicado 2021“…We compared Mollisols under natural vegetation (NV) with their agriculture (AG) pairs in the central Argentinean Dry Pampas to obtain the range of values for variables that characterize the soil pore system. …”
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