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Mostrando ítems 21-30 de 30
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Modelling stover and grain yields, and subsurface artificial drainagefrom long-term corn rotations using APSIM
Ojeda, Jonathan Jesus; Volenec, Jeffrey J.; Brouder, Sylvie M.; Caviglia, Octavio; Agnusdei, Monica Graciela (2018)The Agricultural Production Systems Simulator (APSIM) is a key tool to identify agricultural managementpractices seeking to simultaneously optimize agronomic productivity and input use efficiencies. The aimsof this study ... -
Patrones de índice verde normalizado (IVN) en pastizales de la provincia de Buenos Aires: su asociación con comunidades vegetales y suelos
Vazquez, Pablo Mauricio; Calandroni, Mirta Beatriz; Cabria, Fabián; Agnusdei, Monica Graciela; Rojas, Maria Del Carmen (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 ... -
Persistence of tall fescue in a subtropical environment : tiller survival over summer in response to flowering control and nitrogen supply
Jauregui, José Martín; Michelini, D F.; Agnusdei, Monica Graciela; Sevilla, Gabriel Hipolito; Chilibroste, Pablo; Lattanzi, F.A.; Baudracco, Javier (Wiley, 2016)Enhancing pasture persistence is crucial to achieve more sustainable grass-based animal production systems. Although it is known that persistence of perennial ryegrass is based on a high turnover of tillers during late ... -
Producción de forraje de agropiro alargado en función de la disponibilidad de nitrógeno y la posición topográfica
Cicore, Pablo Leandro; Berone, German Dario; Alvarez Prado, A.; Agnusdei, Monica Graciela (2017)El objetivo fue evaluar, en diferentes posiciones topográficas, el crecimiento de agropiro alargado (Thinopyrum ponticum [Podp.] Barkworth & D. R. Dewey Phil) bajo diferente disponibilidad de nitrógeno (N). Se seleccionaron ... -
Respuesta de agropiro alargado (Thinopyrum Ponticum) a la densidad de siembra y al arreglo espacial : desarrollo del área foliar, estructura poblacional e intercepción lumínica en el año de implantación
Bertram, Nicolas (Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 2008-06)Los estadios iníciales de crecimiento de una pastura son consideradas etapas de gran susceptibilidad, hecho que toma mayor importancia en especies de lento crecimiento inicial y escasa plasticidad morfológica como agropiro ... -
Size/density compensation in Chloris gayana Kunth cv. Fine Cut subjected to different defoliation regimes
Martinez Calsina, Luciana; Agnusdei, Monica Graciela; Assuero, Silvia Graciela; Perez, Hector Eduardo (Wiley, 2012-06)The study evaluated the plasticity of Chloris gayana Kunth cv. Fine Cut to defoliation in terms of tiller size/density compensation (SDC). Twelve mini‐swards were grown in a greenhouse under non‐limiting water and nutrient ... -
State of knowledge in tiller dynamics
Matthew, Cory; Agnusdei, Monica Graciela; Assuero, Silvia Graciela; Sbrissia, André F.; Scheneiter, Jorge Omar; Silva, Sila C. da (University of Kentucky, 2013)Persistence of sown pastures is a concern for pastoral production worldwide. Fundamentally, when a pasture does not persist the problem can be expressed in terms of inadequate new tiller production or excessive tiller ... -
The allocation of assimilated carbon to shoot growth: in situ assessment in natural grasslands reveals nitrogen effects and interspecific differences
Xiao, Ying Gong; Berone, German Dario; Agnusdei, Monica Graciela; Rodríguez Palma, Ricardo Manuel; Schäufele, Rudi; Lattanzi, Fernando Alfredo (2014-04)In grasslands, sustained nitrogen loading would increase the proportion of assimilated carbon allocated to shoot growth (A shoot), because it would decrease allocation to roots and also encourage the contribution of species ... -
Use of a biophysical simulation model (DairyMod) to represent tall fescue pasture growth in Argentina
Berger, Horacio; Machado, Claudio F.; Agnusdei, Monica Graciela; Cullen, Brendan R. (Wiley, 2014-09)Tall fescue pastures have an increasing potential to be used worldwide. The purpose of this study was to test the ability and flexibility of the model DairyMod to represent herbage mass accumulation (HMA) of tall fescue ... -
Vertical distribution of root biomass and soil carbon stocks in forage cropping systems
Ojeda, Jonathan Jesus; Caviglia, Octavio; Agnusdei, Monica Graciela (Springer, 2018-02)Background and aims: Forage cropping systems may differentially affect the vertical distribution of roots and soil organic C stock (C-OM). In annual crops sequences (ACS) and perennial pastures (PP), we assessed the ...