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Revista de la ciencia del suelo y nutrición vegetal

On-line version ISSN 0718-2791


SANDOVAL E, Marco et al. Hydraulic parameters determinated in Andisol under different crop rotations after ten years. R.C. Suelo Nutr. Veg. [online]. 2007, vol.7, n.2, pp.32-45. ISSN 0718-2791.

Hydraulic parameters were measured in a soil of volcanic origin of the Central Valley (Humic Haploxerands) under different crop rotations with different agricultural management and soil-use intensity that were grouped in four rotations that included pastures and two intensive rotations without pastures. Measurements of saturated hydraulic conductivity (Ka) were done in-situ. At the mean time, two hydraulic parameters of soil were determined: á parameter and matric flux potential (Φm). All plots with pasture included in the rotation had similar mean Kfs values. The plots with intensive rotations had the extreme, the Highes and lower Kfs values. The Kfs in the rotation sugar beet-wheat-beans-barley was the Highest Kfs (P≤0,05) of all treatments. Our results were supported by a correlation analysis that determined significant relationships (P≤0,05) between Kfs, and the hydraulic parameters a and matric flux potential (Φm)

Keywords : Hydraulic conductivity; CL parameter; matric flux potential.

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