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Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages

It is necessary to know the right time for nitrogen (N) fertilizer application to meet the plant's need in order to reduce N loss. A glasshouse experiment was conducted at Universiti Putra Malaysia to determine the timing of N uptake at different growth stages of maize. Nitrogen was labeled as...

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Main Authors: Mahfuzah, N. A., Khanif, Y. M., Radziah, O., Khairuddin, A. R.
Format: Article
Language:English
Published: Bangladesh Botanical Society 2017
Online Access:http://psasir.upm.edu.my/id/eprint/63577/1/Timing%20of%20nitrogen%20uptake%20pattern%20by%20maize%20using%2015N%20isotope%20technique%20at%20different%20growth%20stages.pdf
http://psasir.upm.edu.my/id/eprint/63577/
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spelling my.upm.eprints.635772018-11-05T01:29:57Z http://psasir.upm.edu.my/id/eprint/63577/ Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages Mahfuzah, N. A. Khanif, Y. M. Radziah, O. Khairuddin, A. R. It is necessary to know the right time for nitrogen (N) fertilizer application to meet the plant's need in order to reduce N loss. A glasshouse experiment was conducted at Universiti Putra Malaysia to determine the timing of N uptake at different growth stages of maize. Nitrogen was labeled as ¹⁵N urea with 10% atom excess (a.e). The total N uptake increased until eighth week of planting. After the eighth week of planting, total N decreased due to remobilization of nitrogen from leaf and stalks to grain. The maximum nitrogen use efficiency (NUE) was only 37% throughout the growing season. This indicated that the NUE was very low. NUE can be increased by understanding the right rate and time of nitrogen fertilizer application. The best timing for nitrogen fertilizer application was before the eighth week of planting which reduced the loss of N. Bangladesh Botanical Society 2017-03 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/63577/1/Timing%20of%20nitrogen%20uptake%20pattern%20by%20maize%20using%2015N%20isotope%20technique%20at%20different%20growth%20stages.pdf Mahfuzah, N. A. and Khanif, Y. M. and Radziah, O. and Khairuddin, A. R. (2017) Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages. Bangladesh Journal of Botany, 46 (1). 329 - 334. ISSN 0253-5416; ESSN: 2079-9926
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 It is necessary to know the right time for nitrogen (N) fertilizer application to meet the plant's need in order to reduce N loss. A glasshouse experiment was conducted at Universiti Putra Malaysia to determine the timing of N uptake at different growth stages of maize. Nitrogen was labeled as ¹⁵N urea with 10% atom excess (a.e). The total N uptake increased until eighth week of planting. After the eighth week of planting, total N decreased due to remobilization of nitrogen from leaf and stalks to grain. The maximum nitrogen use efficiency (NUE) was only 37% throughout the growing season. This indicated that the NUE was very low. NUE can be increased by understanding the right rate and time of nitrogen fertilizer application. The best timing for nitrogen fertilizer application was before the eighth week of planting which reduced the loss of N.
format Article
author Mahfuzah, N. A.
Khanif, Y. M.
Radziah, O.
Khairuddin, A. R.
spellingShingle Mahfuzah, N. A.
Khanif, Y. M.
Radziah, O.
Khairuddin, A. R.
Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
author_facet Mahfuzah, N. A.
Khanif, Y. M.
Radziah, O.
Khairuddin, A. R.
author_sort Mahfuzah, N. A.
title Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
title_short Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
title_full Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
title_fullStr Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
title_full_unstemmed Timing of nitrogen uptake pattern by maize using 15N isotope technique at different growth stages
title_sort timing of nitrogen uptake pattern by maize using 15n isotope technique at different growth stages
publisher Bangladesh Botanical Society
publishDate 2017
url http://psasir.upm.edu.my/id/eprint/63577/1/Timing%20of%20nitrogen%20uptake%20pattern%20by%20maize%20using%2015N%20isotope%20technique%20at%20different%20growth%20stages.pdf
http://psasir.upm.edu.my/id/eprint/63577/
_version_ 1643837836103778304
score 13.211869

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