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Describing Soils: Calibration Tool for Teaching Soil Rupture Resistance
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Seybold, C. A.; Harms, D. S.; Grossman, R. B. – Journal of Natural Resources and Life Sciences Education, 2009
Rupture resistance is a measure of the strength of a soil to withstand an applied stress or resist deformation. In soil survey, during routine soil descriptions, rupture resistance is described for each horizon or layer in the soil profile. The lower portion of the rupture resistance classes are assigned based on rupture between thumb and…
Descriptors: Item Response Theory, Evaluation Methods, Soil Science, Measurement Techniques