ISSN: 0041-3216

ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 60 Number 4
Research Notes
Potential of urease inhibitors in reducing ammonia losses in some tropical soils
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The effectiveness of four urease inhibitors in reducing ammonia volatilization losses was investigated under laboratory conditions using tropical (semi-arid) Sudanese soils. Ammonia volatilization loss from urea-treated soils increased in the following order: p-benzoquinone ? phosphoric acid > catechol, while the losses were greater in the calcium hydroxide-treated soils than the control.
Keywords: Soils; Ammonia; Urease inhibitors