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Notes on the Colorimetric Determination of Phosphorus in Soil Extracts.

โœ Scribed by Millar, C. E. ;Gangler, F. A.


Book ID
127284704
Publisher
American Chemical Society
Year
1915
Weight
156 KB
Volume
7
Category
Article
ISSN
0095-9014

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Extraction and Colorimetric Determinatio
โœ Douglas, L. A.; Bremner, J. M. ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› The American Society of Agronomy ๐ŸŒ English โš– 150 KB

## Abstract A simple colorimetric method of determining urea in soils is described. The soil sample is extracted with 2__M__ KCl containing a urease inhibitor (phenylmercuric acetate), and the extract is analyzed for urea by measurement of the red color formed when an aliquot is heated with diacety