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Mostrando ítems 1-20 de 23
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La aplicación de nitrógeno en otoño retrasa la senescencia foliar en manzano (Malus domestica Borkh)
De Angelis, Veronica; Sanchez, Enrique Eduardo; Tognetti, Jorge Alberto (Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2012-04)La prolongación de la duración de la vida de las hojas de frutales en otoño es deseable ya que contribuye a mejorar la disponibilidad de reservas para el ciclo siguiente. El objetivo de este trabajo fue evaluar el efecto ... -
Cambios biológicos del suelo asociado al manejo de la cobertura vegetal en un huerto orgánico de manzano
Gili, Perla; Aruani, María Cristina; Maero, E.; Sanchez, Enrique Eduardo; Sagardoy, Marcelo Antonio (Sociedad Mexicana de la Ciencia del Suelo, 2007-09-01)Se estudió la respuesta a la aplicación de distintos tipos de cobertura vegetal en el espacio interfilar de la actividad de los microorganismos del suelo, la biomasamicrobiana y la actividad enzimática en un suelo de textura ... -
Cambios en las propiedades de un suelo franco bajo producción orgánica de manzano utilizando coberturas vegetales = Changes in soil properties in a loamy soil under organic production of apples using cover crops
Aruani, María Cristina; Sanchez, Enrique Eduardo; Reeb, Pablo Daniel (Asociación Argentina de la Ciencia del Suelo (AACS), 2006-12)El manejo de los suelos en el Alto Valle de Río Negro se basa en la labranza continua la cual en el largo plazo puede afectar negativamente las propiedades del suelo. Por este motivo se planteó un ensayo cuyo objetivo fue ... -
Comparative movement of labelled nitrogen and zinc in 1-year-old peach [Prunus persica (L.) Batsch] trees following late-season foliar application
Sanchez, Enrique Eduardo; Weinbaum, Steven A.; Johnson, R. Scott (Taylor and Francis, 2006-09)Late in the season, a double-labelled solution containing 15N-enriched urea and 68Zn sulphate was painted on the entire leaf area of 15, 1-year-old ‘O’Henry/Nemaguard’ peach trees to quantify N and Zn movement out of leaves ... -
Contributions of early season temperatures to pyrus communis 'Bartlett' fruit growth
Rodriguez, Andrea Betiana; Sanchez, Enrique Eduardo; de la Casa, Antonio (ISHS, 2011-10)Final size of pear fruit depends on genetics, environmental and different management factors. The aim of the present study was to examine how natural temperature fluctuations affected growth of ‘Bartlett’ cultivar fruit. ... -
Cover crops influence soil properties and tree performance in an organic apple (Malus domestica Borkh) orchard in northern Patagonia
Sanchez, Enrique Eduardo; Giayetto, Alejandro Lorenzo; Cichon, Liliana; Fernandez, Dario Eduardo; Aruani, María Cristina; Curetti, Mariela (Springer, 2007-02-28)Little is known about the eVects of cover crops on soil properties in organic orchards. To Wll this gap, this work aimed at examining the eVects of several cover crops on soil fertility, nitrate dynamics, populations of ... -
Efecto del riego deficitario controlado sobre el crecimiento vegetativo en plantaciones jóvenes de cerezo (Prunus avium L.) = Effect of water deficit irrigation on vegetative growth of young cheery trees (Prunus avium L.)
Podestá, Lidia; Sanchez, Enrique Eduardo; Vallone, Rosana Celia; Morabito, José Antonio (Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo (UNCuyo), 2010-06)En cerezo, plantas con excesivo vigor son poco precoces, poco productivas y de difícil manejo. El exceso de vigor podría ser controlado con estrategias de riego deficitario controlado (RDC). Durante dos años se realizó un ... -
Effect of AVG application on fruit set, yield and fruit size in ‘Abate Fetel’ and ‘Packam’s Triumph’ pears in a semi-commercial statistical trial
Sanchez, Enrique Eduardo; Curetti, Mariela; Retamales, Julio (ISHS, 2011-10-31)Fruit set in pear (Pyrus communis L.) can be low and unpredictable. The aim of this study was to increase fruit set and subsequently yield in ‘Abate Fetel’ (AF) and ‘Packham’s Triumph’ (PT) pears. The influence of ... -
Effect of Postharvest Soil and Foliar Application of Boron Fertilizer on the Partitioning of Boron in Apple Trees
Sanchez, Enrique Eduardo; Righetti, Timothy L. (American Society for Horticultural Science, 2005-12)This study was carried out on mature `Delicious' apple trees (Malus domestica Borkh.) on EM 9 rootstock. Labeled B (99.63 Atom % 10B) was applied as boric acid. Treatments were postharvest foliar B at 375 mg·L–1, postharvest ... -
Effects of soil management on yield, growth and soil fertility in an organic apple orchard
Sanchez, Enrique Eduardo; Cichon, Liliana; Fernandez, Dario Eduardo (ISHS, 2006-10)The objective of this work was to evaluate the effects of soil management on yield, growth and soil fertility in an organic apple orchard cv. Royal Gala/EM 26 planted in 1994 at 4 x 2 m. In 1999, treatments applied to the ... -
Estructura de la comunidad de nematodos del suelo bajo dos niveles de fertilización nitrogenada en Alto Valle de Río Negro, Argentina
Azpilicueta, Claudia Viviana; Aruani, María Cristina; Reeb, Pablo Daniel; Sanchez, Enrique Eduardo (Organización de Nematólogos de los Trópicos Americanos (ONTA), 2008-06-01)En este estudio se determinó el efecto de la fertilización nitrogenada sobre la abundancia de nematodos de vida libre y fitófagos en el suelo. Se evaluaron los índices de la comunidad de nematodos y su relación con la ... -
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene
Raffo Benegas, Maria Dolores; Sanchez, Enrique Eduardo; Sozzi, Gabriel Oscar (International Society for Horticultural Science (ISHS), 2008-10-31)An experiment was performed on pears cv. Williams/seedling rootstock to evaluate the effect of intercepted PAR on fruit firmness and color, upon harvest and subsequent response to postharvest application of 1-methylcyclopropene ... -
Foliar application of urea during bloom increases fruit size in 'Williams' pears
Sanchez, Enrique Eduardo; Curetti, Mariela; Sugar, David (ISHS, 2008-10)In preliminary screening of materials for potential bloom-thinning of ‘Williams’ pears in Oregon, USA and Rio Negro, Argentina, treatment with urea in 5% (w/w) or 7.5% solutions was identified as effective in enhancing ... -
Foliar-applied urea at bloom improves early fruit growth and nitrogen status of spur leaves in pear trees, cv. Williams Bon Chretien
Curetti, Mariela; Sanchez, Enrique Eduardo; Tagliavini, Massimo; Gioacchini, Paola (Elsevier, 2013-02-04)The fruit size of early ripening pear varieties is one of the most important attributes for its quality. In pear (Pyrus communis L.) the thinning effect of urea is controversial, even if urea sprays increase in general the ... -
Management of Nitrogen and Calcium in Pear Trees for Enhancement of Fruit Resistance to Postharvest Decay
Sugar, David; Righetti, Timothy L.; Sanchez, Enrique Eduardo; Khemira, Habib (American Society for Horticultural Science, 1992-07)Management of pear (Pyrus communis L.) trees for low N and high Ca content in the fruit reduced the severity of postharvest fungal decay. Application of N fertilizer 3 weeks before harvest supplied N for tree reserves and ... -
Misleading zinc deficiency diagnose in pome fruit and inappropriate use of foliar zinc sprays
Sanchez, Enrique Eduardo; Righetti, Timothy L. (ISHS, 2002-11-30)Many researchers and field managers consider Zn the most limiting micronutrient for tree fruit production. A threshold concentration of 18-20 ppm in summer shoot leaves is considered adequate in most world fruit growing ... -
Producción y manejo nutricional de frutales de clima templado
Sanchez, Enrique Eduardo; Curetti, Mariela (Instituto de la Potasa y el Fósforo, 2009-12)Las especies frutales caducifolias están confinadas principalmente a latitudes medias, entre 30º y 50º, especialmente en el Hemisferio Norte, siendo China el país productor más importante. La producción puede extenderse a ... -
Recent situation of the pear industry in South America
Sanchez, Enrique Eduardo (ISHS, 2008-10)South America is overall a net exporter of pears due to the large contributions of Argentina and Chile. Brazil, on the other hand, is a big pear importer. The total production for the region is 900,000 tons on approximately ... -
Research knowledge and needs for orchard floor management in organic tree fruit systems
Granatstein, David; Sanchez, Enrique Eduardo (Taylor and Francis, 2009-09-28)While pest management and tree horticulture dominate the research agenda for temperate tree fruits, organic production requires more attention to weed control and nutrient management because of the limited options growers ... -
Timing of nitrogen fertilization influences color and anthocyanin content of apple (Malus domestica Borkh. cv ‘Royal Gala’) fruits
De Angelis, Veronica; Sanchez, Enrique Eduardo; Tognetti, Jorge Alberto (Taylor and Francis, 2011)Different timings and methods of N application modify N dynamics in the plant and could have differential effects on fruit color. To evaluate this possibility, an experiment was conducted during three seasons in a ‘Royal ...