Springer Online Journal Archives 1860-2000
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Summary Various parameters affecting the hydrolysis of urea in several Alberta soils were studied. The hydrolysis rate of urea in a Malmo silt loam was found to be linearly dependent on concentration, and the Arrhenius plot for soil urease was found to be linear from 2 to 45°C with an experimental activation energy of 9.8 kcal/mole. The urease activities of several soils were determined and the highest activity was found in the LH horizon of a virgin Orthic Dark Gray Luvisol (Uncas loam).
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