Inhibition of mineralization of urea nitrogen in soil |
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Authors: | M. M. Mishra W. Flaig |
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Affiliation: | (1) Institut fuer Biochemie des Bodens, Forschungsanstalt fuer Landwirtschaft, Braunschweig, Federal Republic of Germany;(2) Present address: Department of Microbiology, Haryana Agricultural University, Hissar, (Haryana), India |
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Abstract: | Summary The effects of anthraquinones and some other quinonoid and phenolic compounds on mineralization of urea N in soils were studied by estimating the influence on urease activity and nitrification. Anthraquinones did not affect the mineralization of urea N but 1,4-naphthoquinone; 2-methyl-1,4-naphthoquinone; 2–3-dichlorohydroquinone; 4,6-di-tert.butyl-o-benzoquinone; 4-tert.butylpyrocatechol and 4,6-di-tert.butylpyrocatechol inhibited urease activity and nitrification. The hydrolysis of urea (100 ppm) was not prevented by partial reduction in urease activity. The effective substances also inhibited dehydrogenase activity. |
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Keywords: | Anthraquinone Dehydrogenase Naphtoquinone Nitrification inhibition Phenols Urea mineralization Urease |
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