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Minimizing ammonia loss from urea through mixing with zeolite and acid sulphate soil.


Citation

Ahmed, Osumanu Haruna and Yap, Braine C. H. and Nik Ab. Majid, Nik Muhamad (2010) Minimizing ammonia loss from urea through mixing with zeolite and acid sulphate soil. International Journal of the Physical Sciences, 5 (14). pp. 2198-2202. ISSN 1992-1950

Abstract

Ammonia volatilization is a major cause of nitrogen loss from surface applied urea. While all top dressed ammonia and ammonium-based fertilizers can be volatized, the potential is greatest with urea and fluid containing urea. This laboratory study compared the effect of four different urea-zeolite-acid sulphate soil mixtures on NH3 volatilization and, soil exchangeable NH4 and available NO3 contents of an acid soil with surface-applied urea without additives. The soil used in the study was a sandy loam Typic Paleudults (Nyalau Series). The mixtures significantly minimized NH3 loss by 6 to 15% compared to urea alone. These treatments also significantly increased soil exchangeable NH4 and available NO3 contents compared to urea without additives. The increase in the formation of NH4+ over NH3 and the temporary decrease in soil pH retarded urea hydrolysis at the microsite immediately around the fertilizer. Surface applied urea fertilizer efficiency could be increased by mixing it with zeolite and acid sulphate soil.


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Additional Metadata

Item Type: Article
Subject: Urea as fertilizer
Subject: Soils - Sulfur content
Subject: Soil acidity
Divisions: Faculty of Agriculture
Faculty of Forestry
Publisher: Academic Journals
Keywords: Urea; Zeolites; Ammonia loss; Acid sulphate soil.
Depositing User: Norhazura Hamzah
Date Deposited: 27 Jun 2013 00:38
Last Modified: 22 Oct 2015 03:14
URI: http://psasir.upm.edu.my/id/eprint/15641
Statistic Details: View Download Statistic

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