densidad aparente
densidad real
materia orgánica
punto de marchitez permanente
textura
Bulk density
field capacity
Organic matter
permanent wilting point
real density
texture
Capacidade de campo
densidade aparente
densidade real
matéria orgânica
ponto de murcha permanente
textura
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Water holding capacity (WHC) is one of the determining properties of crop production. Cenicafé conducted research in order to study WHC in coffee plots and the related soil properties [texture, organic matter (OM), bulk density (BD), real density (RD), moisture retention, and total porosity (TP)], through soil profile and among cartographic units. Soils cultivated with coffee in the Catarina, Chinchiná, Doscientos, Guamal and QuindÃo Units were used at four depths (between 0 and 5, 5 and 10, 10 and 20, and 20 and 30 cm). The properties that showed means difference in profile depth were WHC and moisture retention at field capacity (FC) at the Chinchiná Unit, moisture retention at permanent wilting point (PWP) at the QuindÃo and Catarina Units, slimes at the Doscientos Unit, TP at the Catarina Unit, BD at the QuindÃo Unit, RD at the Catarina Unit, and OM at all units. The regression models that explained the properties were mostly simple exponential, linear for OM, and for the units studied, texture and BD explain FC and PWP, which determine WHC. Another finding was that the units with the highest TP do not always have the highest WHC, even though TP is directly related to CC and PWP.