Abstract
Soils are enzymically active. Enzymes in soils are of plant, animal and microbial origin, and collectively their activities express the metabolic status of soils at a given time. Many assays have been devised to measure the activities of a wide range of enzymes in soils, usually under conditions which minimize or eliminate the proliferation of microorganisms during the assay period. Such activities are thought to be a more direct expression of soil biological activity generally, or of the activities of specific processes of nutrient cycling and organic matter turnover, than say measurements of microbial numbers.
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Ladd, J.N. (1985). Soil Enzymes. In: Vaughan, D., Malcolm, R.E. (eds) Soil Organic Matter and Biological Activity. Developments in Plant and Soil Sciences, vol 16. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5105-1_6
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