Abstract

MADERO MORALES, Edgar et al. Present in soil compaction of Valle del Cauca, Colombia, under sugarcane (south). Acta Agron. [online]. 2011, vol.60, n.3, pp.244-251. ISSN 0120-2812.

In 2008, the degree of compaction of the best lands (Classes I and II agrologic) cultivated with sugarcane among the municipalities of Palmira, El Cerrito and Candelaria in Valle del Cauca, Colombia. First, an index mapping compaction (IC) based on the bulk density from 0 to 15 cm deep in 144 sampling points was performed. The mapping of these classes was obtained from the detailed study of soils in this area with the help of ArcGIS ® software. Second, we assessed the influence of compaction rates prevailing on some hydrodynamic properties and soil moisture regime (R.H.S), were located to two measurement points in each of the three soils for 75 days. Third, we found the effectiveness of R.H.S prediction by the simulation model SOMORE. The study showed that the soils do not have high levels of compaction, and also exhibited high organic matter content (4% to 6%). As the IC showed that there is compaction it was found that the hydrological characteristics, and moisture retention and workability are adequate workability, the R.H.S is negatively affected by rainfall, but did not differ between treatments. The model was acceptable and practical SOMORE to estimate the R.H.S.

Keywords : Soil compaction index; soil consistency; soil moisture regime; SOMORE.

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