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Relationships Between Soil Urease Activity and Other Soil Properties
Author(s) -
Zantua M. I.,
Dumenil L. C.,
Bremner J. M.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100020036x
Subject(s) - urease , silt , organic matter , soil texture , soil water , chemistry , cation exchange capacity , soil organic matter , soil science , soil test , environmental chemistry , environmental science , urea , geology , biochemistry , organic chemistry , paleontology
Surface samples of 21 diverse Iowa soils representing a wide range in pH, texture, and organic matter content were studied to determine the relationships between soil urease activity and other soil properties. Simple correlation analyses showed that urease activity was correlated very highly significantly with organic C ( r = 0.72***), total N ( r = 0.71***), and cation‐exchange capacity ( r = 0.67***). Urease activity also was significantly correlated with clay (0.53*), sand (−0.47*), and surface area (0.45*), but was not significantly correlated with pH, silt, or CaCO 3 equivalent. Multiple regression analyses showed that organic matter content accounted for most of the variation in urease activity.