A minimum input for water dynamics simulation in crop models are soil water content at field capacity (DUL, drained upper limit), wilting point (LL, lower limit) and, often, saturation (SAT). Eight methods for estimating these water-retention parameters were compared using the following procedure:[1] Stepping through the texture triangle in increments of 1% clay and 1% sand, LL, DUL and SAT were calculated for all possible texture combinations (from 0% sand to 100% sand, giving> 5000 cases, though not all could be used for all methods);