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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/0038071775900693
Last checked: 10/08/2013
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| Author(s): | Zantua, M. I.;
Bremner, J. M. |
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| Author Affiliation: | Department of Agronomy, Iowa State University, Ames, Iowa |
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| Title: | Comparison of methods of assaying urease activity in soils |
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| Source: | Soil Biology & Biochemistry. Vol. 7, No. 3, May 1975, p. 291-295. |
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| Publishing Information: | New York, Pergamon Press |
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| Keywords: | TIC Keywords: Soils; Urease
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| Abstract/Contents: | Analyses of 16 soils selected to obtain a wide range in properties showed that the results obtained by a buffer method of assaying urease activity were markedly higher than those obtained by a non-buffer method. Both methods gave reproducible results, but the non-buffer method was the more precise, and studies reported showed that it provides a much better index than the buffer method of the ability of soils the buffer method detects urease activity that does not occur when soils are treated with urea in the absence of buffer. This is a disadvantage if the purpose of the assay is to obtain an index of the ability of soil to hydrolize fertilizer urea, but is an advantage if the purpose is to detect urease in soils or soil fractions. Use of toluene to inhibit microbial activity in assay of urease activity by the non-buffer method described did not significantly affect the results obtained by this mehod, but it decreased activity by the |
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| Language: | English |
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| References: | 28 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zantua, M. I., and J. M. Bremner. 1975. Comparison of methods of assaying urease activity in soils. Soil Biol. Biochem. 7(3):p. 291-295. |
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| Web URL(s):
http://www.sciencedirect.com/science/article/pii/0038071775900693
Last checked: 10/08/2013
Access conditions: Item is within a limited-access website
http://ac.els-cdn.com/0038071775900693/1-s2.0-0038071775900693-main.pdf?_tid=b2bbc766-6dd2-11e5-9c47-00000aab0f26&acdnat=1444318921_feee735ce73d37225e5ce21c019d7167
Last checked: 10/08/2015
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MSU catalog number: S 590 .S6115 |
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