Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge
Problem statement: Ammonia volatilization from surface-applied urea may be substantial but it is possible to control it by mixing urea with acidic substances such as Humic Acids (HA) and Fulvic Acids (FA). The objective of this study was to compare the effects of urea-HA, urea-FA, urea-acidified (HA...
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| Format: | Article |
| Language: | English |
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Science Publications
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16458/1/ajessp.2009.382.386.pdf |
| _version_ | 1825945819664089088 |
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| author | Shamsuddin, Rosliza Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Jalloh, Mohamadu Boyie |
| author_facet | Shamsuddin, Rosliza Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Jalloh, Mohamadu Boyie |
| author_sort | Shamsuddin, Rosliza |
| collection | UPM |
| description | Problem statement: Ammonia volatilization from surface-applied urea may be substantial but it is possible to control it by mixing urea with acidic substances such as Humic Acids (HA) and Fulvic Acids (FA). The objective of this study was to compare the effects of urea-HA, urea-FA, urea-acidified (HA+FA) mixtures on ammonia loss, soil pH, soil exchangeable ammonium and available nitrate accumulation compared to urea alone. Approach: The effects of urea amended with or without HA and FA were evaluated in a laboratory condition using a closed-dynamic air flow system. Ammonia loss, soil pH, soil exchangeable ammonium and available nitrate were determined using standard procedures. Results: Humic acid alone was not effective in controlling ammonia volatilization even though ammonium retention was found to be significantly higher compared to urea alone. Fulvic acid significantly reduced ammonia volatilization by 50% compared to urea alone. It also caused the highest retention of soil exchangeable ammonium and available nitrate. However, there was no ammonia volatilization with acidified HA and FA. Ammonium and nitrate accumulation for FA was better than acidified HA and FA. Ammonia loss could be reduced by improving ammonium retention. It must be stressed that results obtained in the incubation experiment using an acidic (pH water 6.32) soil of Typic Paleudults (Bekenu series) may only be applicable to similar acid soils. Conclusion: Urea amended with HA or HA and FA significantly reduced ammonia loss. The outcome of this study might be contributed to the improvement of urea N use efficiency as well as reducing environmental pollution. |
| first_indexed | 2024-03-06T07:37:29Z |
| format | Article |
| id | upm.eprints-16458 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:37:29Z |
| publishDate | 2009 |
| publisher | Science Publications |
| record_format | dspace |
| spelling | upm.eprints-164582017-12-06T03:03:11Z http://psasir.upm.edu.my/id/eprint/16458/ Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge Shamsuddin, Rosliza Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Jalloh, Mohamadu Boyie Problem statement: Ammonia volatilization from surface-applied urea may be substantial but it is possible to control it by mixing urea with acidic substances such as Humic Acids (HA) and Fulvic Acids (FA). The objective of this study was to compare the effects of urea-HA, urea-FA, urea-acidified (HA+FA) mixtures on ammonia loss, soil pH, soil exchangeable ammonium and available nitrate accumulation compared to urea alone. Approach: The effects of urea amended with or without HA and FA were evaluated in a laboratory condition using a closed-dynamic air flow system. Ammonia loss, soil pH, soil exchangeable ammonium and available nitrate were determined using standard procedures. Results: Humic acid alone was not effective in controlling ammonia volatilization even though ammonium retention was found to be significantly higher compared to urea alone. Fulvic acid significantly reduced ammonia volatilization by 50% compared to urea alone. It also caused the highest retention of soil exchangeable ammonium and available nitrate. However, there was no ammonia volatilization with acidified HA and FA. Ammonium and nitrate accumulation for FA was better than acidified HA and FA. Ammonia loss could be reduced by improving ammonium retention. It must be stressed that results obtained in the incubation experiment using an acidic (pH water 6.32) soil of Typic Paleudults (Bekenu series) may only be applicable to similar acid soils. Conclusion: Urea amended with HA or HA and FA significantly reduced ammonia loss. The outcome of this study might be contributed to the improvement of urea N use efficiency as well as reducing environmental pollution. Science Publications 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16458/1/ajessp.2009.382.386.pdf Shamsuddin, Rosliza and Ahmed, Osumanu Haruna and Nik Ab. Majid, Nik Muhamad and Jalloh, Mohamadu Boyie (2009) Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge. American Journal of Environmental Sciences, 5 (3). pp. 382-386. ISSN 1553-345X; ESSN: 1558-3910 http://www.thescipub.com/abstract/?doi=ajessp.2009.382.386 10.3844/ajessp.2009.382.386 |
| spellingShingle | Shamsuddin, Rosliza Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Jalloh, Mohamadu Boyie Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title | Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title_full | Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title_fullStr | Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title_full_unstemmed | Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title_short | Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| title_sort | reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge |
| url | http://psasir.upm.edu.my/id/eprint/16458/1/ajessp.2009.382.386.pdf |
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