Rapid,objective measurement of soil color with a tristimulus colorimeter

Abstract

The color of 100 soil sanples collected in Florida and Brazil was measured conventionally with Munsell color charts and with a tristimulus colorimeter (Minolta Chroma Meter 200) progranmed to record reflected color in Munsell notation. The instrument‐derived color readings were highly reproducible and more precise than the visual determinations. It appears that the Chroma Meter 200, an instrument usually used for fruit and juice color measurenent, can be used to get objective soil color measurenents, free of individual color perception differences, and with better interpolated values.