Abstract
Soil bulk density ( D b ), the ratio of soil solid mass to bulk soil volume, is an important but difficult soil property to measure. Existing methods are either expensive, time consuming, or destructive to the sample. The goal of this research was to investigate the utility of photogrammetry for measuring D b . Photogrammetry is the determination of shape and volume from multiple overlapping photos. Photos of soil peds placed on a 3D‐printed turntable were obtained using two mobile devices. Photogrammetry‐measured volume and D b were compared with volume and D b measured using the clod and 3D laser‐scanning methods. No significant differences between D b measured by any method were found. No statistical difference between cameras types was found. We conclude that photogrammetry is a useful method for measuring D b . Measuring D b using photogrammetry was much easier than the other methods and was less expensive and faster than 3D laser scanning.