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Effect of enhancing urea-humic acid mixture with refined acid sulphate soil

Problem statement: Acid Sulphate Soil (ASS) is a problem soil partly because of its high acidity. This low pH could be exploited to reduce ammonia loss from urea by reducing soil microsite pH. The use Humic Acid (HA) to control ammonia loss from urea has been reported but the cost of this material i...

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Main Authors: Mohd Yusuff, Mohd Taufik, Ahmed, Osumanu Haruna, Nik Ab. Majid, Nik Muhamad
Format: Article
Language:English
Published: Science Publications 2009
Online Access:http://psasir.upm.edu.my/id/eprint/14235/1/ajassp.2009.1892.1896.pdf
http://psasir.upm.edu.my/id/eprint/14235/
http://www.thescipub.com/abstract/?doi=ajassp.2009.1892.1896
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spelling my.upm.eprints.142352017-11-29T03:45:02Z http://psasir.upm.edu.my/id/eprint/14235/ Effect of enhancing urea-humic acid mixture with refined acid sulphate soil Mohd Yusuff, Mohd Taufik Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Problem statement: Acid Sulphate Soil (ASS) is a problem soil partly because of its high acidity. This low pH could be exploited to reduce ammonia loss from urea by reducing soil microsite pH. The use Humic Acid (HA) to control ammonia loss from urea has been reported but the cost of this material is high. This laboratory study compared the effect of enhancing urea-humic acid mixtures with acid sulphate soil on NH3 loss, pH, exchangeable ammonium and available nitrate contents. Approach: Humic acid, acid sulfate soil and soil used in the incubation study were analyzed for selected soil physical-chemical properties using standard procedures. Urea-HA-ASS mixtures were prepared and ammonia volatilization of the mixtures was evaluated by the closed-dynamic air flow system. The treatments were evaluated in a randomized complete block design with 3 replications. Standard procedures were used to determine ammonia loss, soil pH, exchangeable ammonium and available nitrate at 22 days of incubation. Data obtained were analyzed using analysis of variance and Duncan's test using Statistical Analysis System (SAS) version 9.2. Results: Urea amended with 0.75 g ASS significantly reduced ammonia volatilization. Although the use of appropriate amount of acid sulphate soil to control ammonia loss is possible, excessive use of this material is not recommended because of Fe in it. Conclusion: Urea amended with 0.75 g ASS reduced ammonia. Science Publications 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14235/1/ajassp.2009.1892.1896.pdf Mohd Yusuff, Mohd Taufik and Ahmed, Osumanu Haruna and Nik Ab. Majid, Nik Muhamad (2009) Effect of enhancing urea-humic acid mixture with refined acid sulphate soil. American Journal of Applied Sciences, 6 (11). pp. 1892-1896. ISSN 1546-9239; ESSN: 1554-3641 http://www.thescipub.com/abstract/?doi=ajassp.2009.1892.1896 10.3844/ajassp.2009.1892.1896
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Problem statement: Acid Sulphate Soil (ASS) is a problem soil partly because of its high acidity. This low pH could be exploited to reduce ammonia loss from urea by reducing soil microsite pH. The use Humic Acid (HA) to control ammonia loss from urea has been reported but the cost of this material is high. This laboratory study compared the effect of enhancing urea-humic acid mixtures with acid sulphate soil on NH3 loss, pH, exchangeable ammonium and available nitrate contents. Approach: Humic acid, acid sulfate soil and soil used in the incubation study were analyzed for selected soil physical-chemical properties using standard procedures. Urea-HA-ASS mixtures were prepared and ammonia volatilization of the mixtures was evaluated by the closed-dynamic air flow system. The treatments were evaluated in a randomized complete block design with 3 replications. Standard procedures were used to determine ammonia loss, soil pH, exchangeable ammonium and available nitrate at 22 days of incubation. Data obtained were analyzed using analysis of variance and Duncan's test using Statistical Analysis System (SAS) version 9.2. Results: Urea amended with 0.75 g ASS significantly reduced ammonia volatilization. Although the use of appropriate amount of acid sulphate soil to control ammonia loss is possible, excessive use of this material is not recommended because of Fe in it. Conclusion: Urea amended with 0.75 g ASS reduced ammonia.
format Article
author Mohd Yusuff, Mohd Taufik
Ahmed, Osumanu Haruna
Nik Ab. Majid, Nik Muhamad
spellingShingle Mohd Yusuff, Mohd Taufik
Ahmed, Osumanu Haruna
Nik Ab. Majid, Nik Muhamad
Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
author_facet Mohd Yusuff, Mohd Taufik
Ahmed, Osumanu Haruna
Nik Ab. Majid, Nik Muhamad
author_sort Mohd Yusuff, Mohd Taufik
title Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
title_short Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
title_full Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
title_fullStr Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
title_full_unstemmed Effect of enhancing urea-humic acid mixture with refined acid sulphate soil
title_sort effect of enhancing urea-humic acid mixture with refined acid sulphate soil
publisher Science Publications
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/14235/1/ajassp.2009.1892.1896.pdf
http://psasir.upm.edu.my/id/eprint/14235/
http://www.thescipub.com/abstract/?doi=ajassp.2009.1892.1896
_version_ 1643825572879532032
score 13.211869

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