Comparison of tristimulus spectrocolorimeter measurements and human visual assessment of South Carolina field moist Munsell soil colors

Abstract Soil color has historically been estimated visually, but inaccuracies with this method have documented, including disagreement in evaluators, blindness, and differences physical books due to weathering. As new technologies become available soil scientists, a reliable digital determine the field could offer solution these inaccuracies. This research aimed assess if visual estimates of matrix from 111 horizons differed measurements Munsell across three South Carolina regions. Visual were conducted using books. The XRite Capsure gave notation specific for soils. absolute difference between hues was similar among assessment methods. value chroma statistically greater than measurements. However, values chromas less one chip different, suggesting no practical two Utilizing tool can assist training validate human estimates.