M
M. A. Tabatabai
Researcher at Iowa State University
Publications - 193
Citations - 26777
M. A. Tabatabai is an academic researcher from Iowa State University. The author has contributed to research in topics: Soil water & Sulfur. The author has an hindex of 70, co-authored 193 publications receiving 24515 citations. Previous affiliations of M. A. Tabatabai include University of California, Berkeley.
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Methods of soil analysis. Part 3 - chemical methods.
Donald L. Sparks,A. L. Page,P. A. Helmke,R. H. Loeppert,P. N. Soltanpour,M. A. Tabatabai,Cliff T. Johnston,M. E. Sumner +7 more
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Use of p-nitrophenyl phosphate for assay of soil phosphatase activity
M. A. Tabatabai,J. M. Bremner +1 more
TL;DR: In this paper, a simple method of assaying soil phosphatase activity is described, which involves colorimetric estimation of the p-nitrophenol released by the enzyme when the soil is incubated with buffered (pH 6·5) sodium pnphosphorus solution and toluene at 37°C for 1 hour.
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Glucosidases and galactosidases in soils
F. Eivazi,M. A. Tabatabai +1 more
TL;DR: In this paper, an improved method to assay activities of α- and β-glucosidases and α-and β-galactosidase in soils is described.
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Phosphatases in soils
F. Eivazi,M. A. Tabatabai +1 more
TL;DR: The results indicate that acid phosphatase is predominant in acid soils and that alkaline phosphatased are predominant in alkaline soils.
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Assay of urease activity in soils
M. A. Tabatabai,J. M. Bremner +1 more
TL;DR: In this article, a simple and precise method of assaying urease activity in soils is described, which involves determination of the ammonium released by urea-fixing activity when soil is incubated with tris(hydroxymethyl)aminomethane (THAM) buffer, urea solution, and toluene at 37°C for 2 h, ammonium release being determined by a rapid procedure involving treatment of the incubated soil sample with 2.5 M KC1 containing a urea inhibitor (Ag 2 SO 4 ) and steam distillation of