A comparison of soil scientist estimations and laboratory determinations of some Arizona soil properties.

Publication Type:
Journal Article
Journal of Soil & Water Conservation, 1986, 41 (6), pp. 421 - 424
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Samples of representative Arizona soils were sent to 36 soil scientists who were asked to estimate the sand, silt, and clay percentage; organic matter percentage; cation exchange capacity; carbonate content; and wilting point of each soil. These estimates were then correlated with laboratory analyses of these soils. The mean correlation coefficients for the individual estimations were highest for sand and clay (.88 and .86) and lowest for percent carbonates and cation exchange capacity (.56 and .65). -from Authors
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