Artículos científicos: Envíos recientes
Mostrando ítems 81-100 de 160
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Perspectivas sobre contribuciones y estados del bosque nativo de actores sociales vinculados a la producción ganadera en el Espinal entrerriano
(Asociación Argentina de Ecología, 2021-04)Los procesos de deforestación y de degradación hacen que el Espinal sea una de las ecorregiones boscosas más amenazadas de la Argentina. En el centro-norte de Entre Ríos, los remanentes de bosques de Espinal nativo son ... -
Long-term fertilizer application and cover crops improve soil quality and soybean yield in the Northeastern Pampas region of Argentina
(Elsevier, 2021-03)Long-term improvements in soil quality through cover crops (CC) and fertilizer management may provide resilience for temporal water stresses in cropping sequences based on soybean [Glycine max (L.) Merr.]. The objectives ... -
Highly diverse and rapidly spreading: Melanagromyza sojae threatens the soybean belt of South America
(Springer, 2021-02)The soybean stem fly, Melanagromyza sojae, an Asian native insect, has successfully established in Brazil, Argentina, Paraguay and Bolivia. These countries are among the lead global soybean producing nations, being ... -
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 ... -
Conservation of ecosystem services in Argiudolls of Argentina
(MDPI, 2020-12-19)Mollisols are a fundamental component of global agricultural production. In the Argentine Pampas region, 65% of the Mollisols belong to Argiudoll great group. These soils have an agricultural aptitude, with limitations ... -
Current status of soybean anthracnose associated with Colletotrichum truncatum in Brazil and Argentina
(MDPI, 2019-10)Brazil and Argentina have a combined soybean area of 53.6 million hectares, which accounts for over half of the total global production. The soybean crop in South America extends from latitude 8–10 S to 32–36 S. Such a ... -
Microbial activity effect on aggregate stability after residue addition in a Mollisol and a Vertisol in the Pampas, Argentina
(Elsevier, 2020-12)Crop residue addition to the soil promotes an increase in microbial activity and, as a consequence, may improve soil aggregate stability. However, this effect may be different in soils with contrasting aggregation agents. ... -
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 ... -
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 ... -
Antifungal susceptibility profile and molecular identification of Cyp51C mutations in clinical and environmental isolates of Aspergillus flavus from Argentina
(Wiley, 2020-10)Background: The emergence of azole resistance in non‐fumigatus Aspergillus strains is on the raise. Objectives: To study the susceptibility profiles and the molecular mechanisms of azole resistance of environmental and ... -
Ecuaciones alométricas de biomasa aérea para Prosopis nigra (Griseb.) Hieron. en bosques de Entre Ríos (Argentina)
(Facultad de Agronomía, Universidad de Buenos Aires, 2020)En un escenario de cambio climático global dado por el aumento de las emisiones de gases de efecto invernadero, la estimación del carbono almacenado en los ecosistemas forestales es fundamental y requiere herramientas ... -
Enfermedades del sorgo en el centro oeste de Entre Ríos
(Asociación Argentina de Fitopatólogos, 2019-10)En Argentina, el sorgo es afectado negativamente por diversas enfermedades que comprometen la producción de grano y forraje, así como el valor nutritivo del cultivo. La importancia relativa de cada una, en cada región y ... -
Water and solar radiation productivity of double-crops in a humid temperate area
(Southern Cross Publishing, 2011-12)The intensification of agricultural systems including sequential double-crops provides a reliable platform to increase the water and solar radiation use in many humid temperate areas of South America, which are predominantly ... -
Defoliation affects soybean yield depending on time and level of light interception reduction
(Southern Cross Publishing, 2012-07)Light interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or percentage ... -
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 ... -
Predicting soil test phosphorus decrease in non-P-fertilized conditions
(Wiley, 2020-02)Monitoring the availability of phosphorus (P) in soil under continuous cropping facilitates finding deficiency in crops and contributes to improving crop growth and nutrient management models. Soil P availability for crops ... -
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 ... -
Probabilidad de ocurrencia de temperaturas máximas y mínimas medias decádicas en Inta Paraná y zona de influencia (Entre Ríos, Argentina)
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 1995)La producción agropecuaria depende en gran medida del comportamiento de las variables meteorológicas durante el ciclo productivo. Sin embargo ese comportamiento, aunque aleatorio, responde a ciertos modelos probabilísticos ... -
A functional classification of 63 common Poaceae in the “Campos” grasslands of South America
(Asociación Argentina de Ecología, 2019-08)The natural grasslands that form part of the “Campos” of South America contain a large number of species at the paddock level (high α diversity), but little differentiation among paddocks (low β diversity). Thus, forage ... -
Addition of organic and inorganic amendments to regenerate the surface structure of silty soils
(Wiley, 2019-11-30)The widespread degradation of the structure of silty soils under no till systems (NT) that has been observed in recent years is characterized by the presence of a platy structure (P) near the soil surface. Under these ...