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INHIBITION OF MINERALIZATION OF UREA NITROGEN IN SOIL
M. M. MISHRA and W. FLAIG
Plant and Soil
Vol. 51, No. 3 (APRIL 1979), pp. 301-309
Published by: Springer
Stable URL: http://www.jstor.org/stable/42933666
Page Count: 9
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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.
Plant and Soil © 1979 Springer