Papers by Francisco Pelegrín
Acta Horticulturae, 1993
Tbe present work studies tbe effect of various tillaqe systems on the water infiltration in a san... more Tbe present work studies tbe effect of various tillaqe systems on the water infiltration in a sandy clay loam soil (Calcic Haploxeralf) from Seville province. The followinq tillaqe metbods were considered: mouldboard plouqhinq (MP), cultivator application (C) and no-tillaqe (NT). In each treatment, water infiltration was measured using both double-rinq infil trometer and rainfall simulator. Infil tration rates for MP and C treatments were siqnificantly (p=0.05 level) hiqher than for NT treatment. Tbe infiltration rates in the plouqh pan of the MP and C treatments were not siqnificantly different (p=O. 05 leve!) to those oí the consolidated zone (20 cm depth) in tbe NT treatment. For tbe different soil conditions, created witb tbe tillaqe methods used, the sorptivity parameter was calculated usinq the Philip equation.
9 paginas, 7 tabla y 15 referencias.-- Trabajo presentado en el VI Simposium Nacional - II Iberic... more 9 paginas, 7 tabla y 15 referencias.-- Trabajo presentado en el VI Simposium Nacional - II Iberico sobre nutricion mineral de las plantas, Sevilla, del 12 al 15 de Noviembre de 1996.-- Entidades colaboradoras Junta de Andalucia, Universidad de Sevilla, Consejo Superior de Investigaciones Cientificas, Sociedad Espanola de Fisiologia Vegetal, El Monte, Caja de Huelva y Sevilla y Gat Fertiliquido.-- Editores cientificos: Rafael Sarmiento Solis, Eduardo O. Leidi Montes y Antonio Troncoso de Arce.-- (Instituto de Recursos Naturales y Agrobiologia de Sevilla).
Soil and Tillage Research, 1997
Soil and Tillage Research, 1990
Abstract In the present work the effect of several tillage methods on the physical properties of ... more Abstract In the present work the effect of several tillage methods on the physical properties of a sandy clay loam (Haploxeralf) from Seville province (SW Spain) has been studied in order to establish the optimum management for water intake and conservation in the soil. The following tillage methods were considered during the period 1984–1987: disc ploughing; mouldboard ploughing; cultivator application; disc harrowing; no-tillage. Two crops were used in rotation, wheat and sunflower. In each treatment, soil susceptibility to compaction and systematic measurements of resistance to penetration, bulk density, hydraulic conductivity and infiltration rate in the top layer were carried out. Changes in water profiles through the experimental period were also followed. The results presented in this paper correspond to the period autumn 1986–July 1987, the third year of rotation. They show important differences in soil physical properties as well as in the rate of replenishment and depletion of soil water storage as a result of treatments. Differences in crop response have also been observed.
Spanish Journal of Agricultural Research, 2006
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Papers by Francisco Pelegrín