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Mostrando ítems 1-20 de 21
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Assessing soil P fractions changes with long‐term phosphorus fertilization related to crop yield of soybean and maize
(Wiley, 2020-02)Long-term P fertilization increases soil phosphorus (P) labile fractions, which can be associated with crop P uptake and grain yield and are useful to improve fertilizer recommendations. Research aims were to evaluate in ... -
Conyza bonariensis as an alternative host for Colletotrichum species in Argentina
(Wiley, 2020-10)Aims: This study investigated the diversity of Colletotrichum isolates recovered from Conyza bonariensis leaves through the use of morphological characteristics, growth rate, carbon sources utilization and phylogenetic ... -
Crop nitrogen status of early- and late-sown maize at different plant densities
(Elsevier, 2020)In maize (Zea mays L.) crops, nitrogen (N) status at silking (R1) has been used to predict grain yield (GY) response to N fertilization and to develop strategies to manage crop nutrition in order to match N supply with ... -
Forage yield, water- and solar radiation-productivities of perennial pastures and annual crops sequences in the south-eastern Pampas of Argentina
(Elsevier, 2018-05-15)Livestock production systems of Argentina show an ongoing process of change in the composition of their forage base, with a gradual increase in the proportion of their area assigned to forage crop sequences (FCS) −in ... -
Improving resource productivity at a crop sequence level
(Elsevier, 2019-04)The challenge to increase agricultural production with a minimum environmental impact requires to reach the maximum efficiency in the capture and use of resources such as photosynthetically active radiation (PAR), water, ... -
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 ... -
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 ... -
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). ... -
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 ... -
Selection of potential biological control of Exserohilum turcicumwith epiphytic microorganisms from maize = Selección de microorganismos epifíticos de maíz como potenciales agentes debiocontrolde Exserohilum turcicum
(Asociación Argentina de Microbiología, 2015)The aims of this study were to select microbial isolates from phyllosphere of maizeand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete ... -
Spatio-Temporal Nitrogen Fertilizer Response in Maize: Field Study and Modeling Approach
(American Society of Agronomy, 2016)Maize (Zea mays L.) yield and its response to nitrogen (N) are affected by the spatial variability of the interaction between weather, management, and soil properties. The objectives of this study were (i) to evaluate the ... -
Stover quality and soil organic carbon in long-term nitrogen-fertilized maize
(Alliance of Crop, Soil, and Environmental Science Societies, 2014-09)Nitrogen fertilization often increases maize (Zea mays L.) grain yield but reduces the C/N ratio of stover returned to the soil, which may affect the soil organic carbon (SOC) balance. This study evaluated the long-term ...