Abstract
Ten Philippine wetland rice soils differing widely in pH, texture and organic matter were studied to determine relationships between urease activity and other soil properties. Simple correlation analyses of urease activity with soil properties indicated that urease activity was correlated highly significantly with total N (r = 0.91)**, and organic C (r = 0.89**) but was not significantly correlated with CEC, Clay, pH active Fe or active Mn content. From multiple regression analyses it was observed that organic matter content of soils measured by organic C and total N accounted for most of the variation in urease activity.
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References
Asami T and Kumada K (1959) A new method for determining free iron in paddy soils. Soil Plant Food 4, 141–146
Bremner JM (1965) Total nitrogen. In Black CA, ed. Methods of soil analysis, Agronomy 9, 1149–1178. Amer Soc of Agronomy, Madison, Wisconsin
Bremner JM and Mulvaney RL (1978) Urease activity in soils. In Burns RG, ed. Soil enzymes pp. 149–196. Academic Press, London
Chapman HD (1965) Cation exchange capacity. In Black CA, ed. Methods of soil analysis, Agronomy 9, 891–901. Amer Soc Agron, Madison, Wisconsin
Dalal RC (1975) Urease activity in some Trinidad soils. Soil Biol Biochem 7, 5–8
Day PR (1965) Hydrometer method of particle size analysis. In Black CA, ed. Methods of soil analysis, Agronomy 9, 562–566. Amer Soc of Agronomy, Madison, Wisconsin
De Laune RD and Patrick WH Jr (1970) Urea conversion to ammonia in waterlogged soils. Soil Sci Soc Am Proc 34, 603–607
Sahrawat KL (1980a) Control of urea hydrolysis and nitrification in soil by chemicals — Prospects and problems. Plant and Soil 57, 335–352
Sahrawat KL (1980b) Kinetics of urea hydrolysis in soils. Fert News 25, 12–13, 50
Sahrawat KL (1980c) Urease activity in tropical rice soils and flood water. Soil Biol Biochem 12, 195–196
Vlek PLG, Stumpe JM and Byrnes BH (1980) Urease activity and inhibition in flooded soil systems. Fertilizer Research 1, 191–202
Walkley A and Black IA (1934) An examination of the Degtjareff method for determining soil organic matter and proposed modification of the chromic acid titration method. Soil Sci 37, 29–38
Zantua MI and Bremner JM (1975) Comparison of methods of assaying urease activity in soils. Soil Biol Biochem 7, 291–295
Zantua MI and Bremner JM (1977) Stability of urease in soils. Soil Biol Biochem 9, 135–140
Zantua MI, Dumenil LC and Bremner JM (1977) Relationships between soil urease activity and other soil properties. Soil Sci Soc Am J 41, 350–352
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Sahrawat, K. Relationships between soil urease activity and other properties of some tropical wetland rice soils. Fertilizer Research 4, 145–150 (1983). https://doi.org/10.1007/BF01053251
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DOI: https://doi.org/10.1007/BF01053251