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vol.63 número2ESTIMACIÓN DE LA FIJACIÓN BIOLÓGICA DE NITRÓGENO EN LEGUMINOSAS FORRAJERAS MEDIANTE LA METODOLOGÍA DEL 15NDeterminación de la producción de materia seca y extracción de nitrógeno, fósforo, potasio, calcio y magnesio en Liatris callilepis índice de autoresíndice de materiabúsqueda de artículos
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Agricultura Técnica

versión impresa ISSN 0365-2807


SELLES VAN SCH., Gabriel et al. Drip irrigation management in table grapes cv. Thompson Seedless grown on fine textured soils. Agric. Téc. [online]. 2003, vol.63, n.2, pp.180-192. ISSN 0365-2807.

The objective of this trial was to evaluate the effect of three drip irrigation frequencies on table grapes (Vitis vinifera L.) cv. Thompson Seedless planted on a clay loam textured soil (Fluventic Haploxeroll). The drip irrigation frequencies were established considering daily crop evapotranspiration (ETc), estimated by evaporation pan and adjusted using a crop coefficient (Kc). The treatments corresponded to a water application each time the accumulated daily ETc was equivalent to 6 h (T6), 12 h (T12), and 18 h of irrigation (T18). The largest soil wet bulb size was obtained with T18. This treatment also produced greater berry weight and size. Stem water potential was higher in T18 (P £ 0.05) than in the other treatments. These results can be explained, given the soil texture characteristics (clay loam), by a better water/air balance with a less frequent irrigation regime.

Palabras clave : table grape; drip irrigation; stem water potential; water management; root growth; Vitis vinifera L..

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