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Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots

Hypothetically, monitoring of soil solution NH+4-N dynamics may allow estimation of nitrogen (N) transformation rates such as the rates of nitrification, denitrification, mineralisation and immobilisation. Such observations can be used to evaluate and improve performance of N dynamics models for flo...

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Main Authors: Khairudin, Nurulhuda, Mohd Hanif, Ahmad Husni, Mohamed Zawawi, Mohamed Azwan, Zakaria, Mohamad Pauzi, Struik, Paul C., Keesman, Karel J.
Format: Conference or Workshop Item
Language:English
Published: Malaysian Society of Agricultural Engineers 2019
Online Access:http://psasir.upm.edu.my/id/eprint/76514/1/MSAEC-3.pdf
http://psasir.upm.edu.my/id/eprint/76514/
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spelling my.upm.eprints.765142020-02-05T04:18:27Z http://psasir.upm.edu.my/id/eprint/76514/ Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots Khairudin, Nurulhuda Mohd Hanif, Ahmad Husni Mohamed Zawawi, Mohamed Azwan Zakaria, Mohamad Pauzi Struik, Paul C. Keesman, Karel J. Hypothetically, monitoring of soil solution NH+4-N dynamics may allow estimation of nitrogen (N) transformation rates such as the rates of nitrification, denitrification, mineralisation and immobilisation. Such observations can be used to evaluate and improve performance of N dynamics models for flooded rice systems. Therefore, the objective of this study was to evaluate temporal variation of ammonium dynamics in fertilised and flooded rice pots. Concentrations of NH+4-N were determined in soil solutions that were extracted by MacroRhizon samplers. MacroRhizon is a soil solution sampler with a pore size of 0.15 μm manufactured by Rhizosphere Research, the Netherlands. In comparison to typical soil sampling methods, some advantages of using MacroRhizon are repeated sampling at the same spot possible, easy to install and less disturbance to the soil due to the small diameter, and maximum pore size of 0.2 μm which requires no further filtering prior to chemical analysis. Results showed that under current agronomic and management practices, broadcast N application had no obvious and consistent influence on soil solution NH+4-N. Analysis of the results suggest that suitability of soil solutions extracted using the MacroRhizon samplers as alternatives for the labourious and destructive conventional soil samplings is subject to further investigation. Malaysian Society of Agricultural Engineers 2019 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/76514/1/MSAEC-3.pdf Khairudin, Nurulhuda and Mohd Hanif, Ahmad Husni and Mohamed Zawawi, Mohamed Azwan and Zakaria, Mohamad Pauzi and Struik, Paul C. and Keesman, Karel J. (2019) Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots. In: Konvensyen Kebangsaan Kejuruteraan Pertanian dan Makanan 2019, 21 Mac 2019, Wisma Tani, Kementerian Pertanian & Industri Asas Tani, Putrajaya. (pp. 32-35).
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 Hypothetically, monitoring of soil solution NH+4-N dynamics may allow estimation of nitrogen (N) transformation rates such as the rates of nitrification, denitrification, mineralisation and immobilisation. Such observations can be used to evaluate and improve performance of N dynamics models for flooded rice systems. Therefore, the objective of this study was to evaluate temporal variation of ammonium dynamics in fertilised and flooded rice pots. Concentrations of NH+4-N were determined in soil solutions that were extracted by MacroRhizon samplers. MacroRhizon is a soil solution sampler with a pore size of 0.15 μm manufactured by Rhizosphere Research, the Netherlands. In comparison to typical soil sampling methods, some advantages of using MacroRhizon are repeated sampling at the same spot possible, easy to install and less disturbance to the soil due to the small diameter, and maximum pore size of 0.2 μm which requires no further filtering prior to chemical analysis. Results showed that under current agronomic and management practices, broadcast N application had no obvious and consistent influence on soil solution NH+4-N. Analysis of the results suggest that suitability of soil solutions extracted using the MacroRhizon samplers as alternatives for the labourious and destructive conventional soil samplings is subject to further investigation.
format Conference or Workshop Item
author Khairudin, Nurulhuda
Mohd Hanif, Ahmad Husni
Mohamed Zawawi, Mohamed Azwan
Zakaria, Mohamad Pauzi
Struik, Paul C.
Keesman, Karel J.
spellingShingle Khairudin, Nurulhuda
Mohd Hanif, Ahmad Husni
Mohamed Zawawi, Mohamed Azwan
Zakaria, Mohamad Pauzi
Struik, Paul C.
Keesman, Karel J.
Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
author_facet Khairudin, Nurulhuda
Mohd Hanif, Ahmad Husni
Mohamed Zawawi, Mohamed Azwan
Zakaria, Mohamad Pauzi
Struik, Paul C.
Keesman, Karel J.
author_sort Khairudin, Nurulhuda
title Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
title_short Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
title_full Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
title_fullStr Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
title_full_unstemmed Temporal variation of ammonium in Sulfic Tropaquept cultivated with rice in experimental pots
title_sort temporal variation of ammonium in sulfic tropaquept cultivated with rice in experimental pots
publisher Malaysian Society of Agricultural Engineers
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/76514/1/MSAEC-3.pdf
http://psasir.upm.edu.my/id/eprint/76514/
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score 13.211869

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