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Mostrando ítems 21-40 de 52
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Interacción del clima y la fertilización fosfatada del cultivo de maíz en Entre Ríos
(Asociación de Ingenieros Agrónomos del Norte de la Provincia de Buenos Aires, 2022-11)Crop yields show significant interannual variability. Different factors condition the yield achievable each year in a given region. The water factor is the most important limitation presented by crops in rainfed systems, ... -
Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus?
(Springer, 2021-01-07)The usual soil test phosphorus (P) neglects the P supply from labile organic P (Po) fractions, which could explain the nonresponse of maize (Zea mays L.) in sites with soil P testing below the critical level. We aim to ... -
Leaf senescence and the profile of expanded leaf area in maize (Zea mays L.)
(University of Guelph, 2002-08)Leaf senescence is a major factor affecting light interception and dry matter accumulation during the grain-filling period. Reduced leaf senescence has been associated with maize yield genetic improvement. The objectives ... -
Maíz en baja densidad como estrategia para sortear ambientes limitantes
(Estación Experimental Agropecuaria Paraná, INTA, 2021)Frente a escenarios de alto riesgo climático y económico, la elección de la densidad de siembra en maíz tiene alto impacto en el costo del cultivo. El ajuste de la densidad de siembra en bajos niveles permite mantener un ... -
Modelling forage yield and water productivity of continuous crop sequences in the Argentinian Pampas
(Elsevier, 2018-01)In recent years, the use of forage crop sequences (FCS) has been increased as a main component into the animal rations of the Argentinian pasture-based livestock systems. However, it is unclear how year-by-year rainfall ... -
Modelling inter-annual variation in dry matter yield and precipitation use efficiency of perennial pastures and annual forage crops sequences
(2018)In livestock systems of the Argentinean Pampas, its forage production stability relies on the integration of two landcovers, annual forage crop sequences and perennial pastures. Despite the key role that these forage ... -
Modelling long-term effects of cropping intensification reveals increased water and radiation productivity in the South-eastern Pampas
(Elsevier, 2013-08)Wheat/soybean double crop provides a reliable platform for cropping intensification in many subtropical and temperate areas, even in those with a short growing season as the South-eastern Pampas of Argentina. However, the ... -
Modelling stover and grain yields, and subsurface artificial drainagefrom long-term corn rotations using APSIM
(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 ... -
Multi-level analysis of bird abundance and damage to crop fields
(Elsevier, 2014-12)Bird damage to agricultural crops is an important cause of economic loss for farmers worldwide. Predictive habitat models relating bird abundance and damage to characteristics of the agricultural environment at multiple ... -
Natural occurrence of fumonisins in corn puff in Argentina
(Springer, 2010-11)Maize presents a substantial contamination by fumonisins (FB) throughout the world. In particular, Argentina presents a high frequency of positive samples and levels of up to 10,000 μg/kg of total FB, depending on the ... -
Nitrogen economy of early and late-sown maize crops
(Elsevier, 2018-11)Late sowing dates of maize are widely adopted in the Pampas region of Argentina, stabilising grain yields due to a more favourable water balance around flowering. However, late-sown crops are exposed to high soil N ... -
Nitrogen utilization efficiency in maize as affected by hybrid and N rate in late-sown crops
(2014-11)After the introduction of Bt-maize, late sowing is becoming an important strategy to stabilize yields in many areas of the Argentine Pampas. Increased nitrogen (N) availability and sharp reduction in radiation and temperature ... -
Oportunidades para la cadena de maíz en Entre Ríos
(Facultad de Ciencias Económicas, Universidad Nacional de Entre Ríos, 2022-06)Entre Ríos representa una clara ilustración de la última expansión de frontera agrícola de la mano de la innovación tecnológica en la producción primaria, con implicancias en el sistema agroalimentario agroindustrial (SAA). ... -
Perspectivas de la producción y demanda de maíz en el sur entrerriano
(Estación Experimental Agropecuaria Paraná, INTA, 2024)A pesar del incremento de la superficie sembrada de maíz en Entre Ríos, existe una demanda creciente e insatisfecha por parte de la industria local. Este documento constituye un sólido fundamento, basado en un proceso ... -
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering
(Southern Cross Publishing, 2019-12)Heat stress affects physiological traits and biomass production in major crops, including maize. We researched the responses of maximum efficiency of photosystem II (Fv/Fm), relative cell injury (RCI), stomatal conductance ... -
Plant emergence and maize (Zea mays L.) yield across multiple farmers’ fields
(Elsevier, 2023-10)Context: Uneven crop stands result from natural variation in emergence time that is related to soil moisture and temperature, and variation of within-row plant-to-plant distance caused during planting operations. Understanding ... -
Plant nitrogen status at flowering and kernel set efficiency in early- and late-sown maize crops
(Elsevier, 2021-08)In maize (Zea mays, L.) genotypic variability in the relationship between total kernel number per plant (KNP) and plant growth rate (PGR) during the period bracketing silking (R1 ± 15 d), and in kernel set efficiency (KNP ... -
Predicción y modelización de la respuesta en rendimiento de trigo y maíz y necesidad de nitrógeno en función de variables climáticas previas a la siembra
(Asociación Latinoamericana de Agricultura de Precisión, 2022-03)Los rendimientos de trigo y maíz presentan una importante variabilidad interanual. Parte de esa variabilidad está determinada por factores limitantes, siendo el factor agua el más importante en los sistemas de secano, ... -
¿Qué destino le doy al cultivo de maíz del ciclo agrícola 2022/23?
(EEA Paraná, INTA, 2023)Se presentan los costos y el margen bruto de dos alternativas de destino para cultivos de maíz estimados para diferentes impactos de la sequía en el rendimiento y la biomasa -
Rendimiento de un híbrido de maíz durante el ciclo agrícola 2021-22, sembrado a diferentes densidades en el departamento Gualeguay, Entre Ríos
(Estación Experimental Agropecuaria Paraná, INTA, 2022)El alto riesgo climático, los elevados costos de producción del cultivo de maíz y rendimientos promedios provinciales de 6287 kg con picos en los mejores años de 8000 kg (Bolsa de Cereales de Entre Ríos, 2022), llevan ...