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Ammonia Volatilization from Malaysian Soils Following Application of Urea

Surface application of urea often results in high ammonia volatilization loss. Information on ammonia volatilization in tropical acid soils is limited. This study was carried out to determine ammonia volatilization loss from surface applied urea in Malaysian soils and to study the ejects of soil pr...

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Main Author: Yusop, Mohd Khanif
Format: Article
Language:English
English
Published: 1992
Online Access:http://psasir.upm.edu.my/id/eprint/2907/1/Ammonia_Volatilization_from_Malaysian_Soils.pdf
http://psasir.upm.edu.my/id/eprint/2907/
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spelling my.upm.eprints.29072013-05-27T07:04:19Z http://psasir.upm.edu.my/id/eprint/2907/ Ammonia Volatilization from Malaysian Soils Following Application of Urea Yusop, Mohd Khanif Surface application of urea often results in high ammonia volatilization loss. Information on ammonia volatilization in tropical acid soils is limited. This study was carried out to determine ammonia volatilization loss from surface applied urea in Malaysian soils and to study the ejects of soil properties on the rate of loss. Measurement of urease activity and ammonia volatilization loss in the laboratory was carried out on topsoil (0-15 cm) of 22 soils commonly found in Malaysia using a force-draft technique. Ammonia volatilization loss was recorded daily for seven days. Ammonia volatilization loss from the 22 soils studied ranged from 0.5 to 53% of N applied with most soils having values around 35 %. The ammonia loss in acid sulfate soil was low. Most of the loss occurred during the first 34 days after urea application. The urease acitivity of soils ranged from 12.20 to 150.50 uglg Nih and was not affected by soil texture and C content. Urease acitivity had a significant e1Ject on ammonia volatilization loss 1992 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2907/1/Ammonia_Volatilization_from_Malaysian_Soils.pdf Yusop, Mohd Khanif (1992) Ammonia Volatilization from Malaysian Soils Following Application of Urea. Pertanika, 15 (2). pp. 155-120. English
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
English
description Surface application of urea often results in high ammonia volatilization loss. Information on ammonia volatilization in tropical acid soils is limited. This study was carried out to determine ammonia volatilization loss from surface applied urea in Malaysian soils and to study the ejects of soil properties on the rate of loss. Measurement of urease activity and ammonia volatilization loss in the laboratory was carried out on topsoil (0-15 cm) of 22 soils commonly found in Malaysia using a force-draft technique. Ammonia volatilization loss was recorded daily for seven days. Ammonia volatilization loss from the 22 soils studied ranged from 0.5 to 53% of N applied with most soils having values around 35 %. The ammonia loss in acid sulfate soil was low. Most of the loss occurred during the first 34 days after urea application. The urease acitivity of soils ranged from 12.20 to 150.50 uglg Nih and was not affected by soil texture and C content. Urease acitivity had a significant e1Ject on ammonia volatilization loss
format Article
author Yusop, Mohd Khanif
spellingShingle Yusop, Mohd Khanif
Ammonia Volatilization from Malaysian Soils Following Application of Urea
author_facet Yusop, Mohd Khanif
author_sort Yusop, Mohd Khanif
title Ammonia Volatilization from Malaysian Soils Following Application of Urea
title_short Ammonia Volatilization from Malaysian Soils Following Application of Urea
title_full Ammonia Volatilization from Malaysian Soils Following Application of Urea
title_fullStr Ammonia Volatilization from Malaysian Soils Following Application of Urea
title_full_unstemmed Ammonia Volatilization from Malaysian Soils Following Application of Urea
title_sort ammonia volatilization from malaysian soils following application of urea
publishDate 1992
url http://psasir.upm.edu.my/id/eprint/2907/1/Ammonia_Volatilization_from_Malaysian_Soils.pdf
http://psasir.upm.edu.my/id/eprint/2907/
_version_ 1643822456729763840
score 13.211869

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