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Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique

Rice crop suffers from magnesium (Mg) deficiency in many locations of Muda Irrigation Scheme, Kedah, Malaysia. As a result nitrogen (N) efficiency is low in rice culture. It is necessary to evaluate the effects of Mg fertilization on rice yield and N use efficiency. A greenhouse experiment was condu...

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Main Authors: Choudhury, T. M. A., Khanif, Y. M.
Format: Article
Published: Taylor and Francis Group 2001
Online Access:http://psasir.upm.edu.my/id/eprint/111942/
https://www.tandfonline.com/doi/abs/10.1081/PLN-100103778
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spelling my.upm.eprints.1119422025-03-03T01:39:37Z http://psasir.upm.edu.my/id/eprint/111942/ Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique Choudhury, T. M. A. Khanif, Y. M. Rice crop suffers from magnesium (Mg) deficiency in many locations of Muda Irrigation Scheme, Kedah, Malaysia. As a result nitrogen (N) efficiency is low in rice culture. It is necessary to evaluate the effects of Mg fertilization on rice yield and N use efficiency. A greenhouse experiment was conducted at Universiti Putra Malaysia during May to September 1998 to evaluate the effects of N and Mg fertilization on rice yield and fertilizer N efficiency in two soils (Guar and Hutan series). Nitrogen was applied as 15N labeled urea. Nitrogen and Mg application increased grain yield significantly in both the soils. Regression analysis indicated that estimated grain yield response to added N was linear in Guar series while it was quadratic in Hutan series. Estimated grain yield response to added Mg was quadratic in nature in both the soils. 15N atom excess in both grain and straw increased significantly with increasing N rates. Magnesium fertilization increased fertilizer N uptake and recovery (%) of fertilizer N significantly. These findings suggest that there is a prospect to increase rice yield and fertilizer N efficiency through Mg fertilization. Taylor and Francis Group 2001 Article PeerReviewed Choudhury, T. M. A. and Khanif, Y. M. (2001) Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique. Journal of Plant Nutrition, 24 (6). pp. 855-871. ISSN 0190-4167; eISSN: 1532-4087 https://www.tandfonline.com/doi/abs/10.1081/PLN-100103778 10.1081/pln-100103778
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/
description Rice crop suffers from magnesium (Mg) deficiency in many locations of Muda Irrigation Scheme, Kedah, Malaysia. As a result nitrogen (N) efficiency is low in rice culture. It is necessary to evaluate the effects of Mg fertilization on rice yield and N use efficiency. A greenhouse experiment was conducted at Universiti Putra Malaysia during May to September 1998 to evaluate the effects of N and Mg fertilization on rice yield and fertilizer N efficiency in two soils (Guar and Hutan series). Nitrogen was applied as 15N labeled urea. Nitrogen and Mg application increased grain yield significantly in both the soils. Regression analysis indicated that estimated grain yield response to added N was linear in Guar series while it was quadratic in Hutan series. Estimated grain yield response to added Mg was quadratic in nature in both the soils. 15N atom excess in both grain and straw increased significantly with increasing N rates. Magnesium fertilization increased fertilizer N uptake and recovery (%) of fertilizer N significantly. These findings suggest that there is a prospect to increase rice yield and fertilizer N efficiency through Mg fertilization.
format Article
author Choudhury, T. M. A.
Khanif, Y. M.
spellingShingle Choudhury, T. M. A.
Khanif, Y. M.
Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
author_facet Choudhury, T. M. A.
Khanif, Y. M.
author_sort Choudhury, T. M. A.
title Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
title_short Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
title_full Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
title_fullStr Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
title_full_unstemmed Evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15N tracer technique
title_sort evaluation of effects of nitrogen and magnesium fertilization on rice yield and fertilizer nitrogen efficiency using 15n tracer technique
publisher Taylor and Francis Group
publishDate 2001
url http://psasir.upm.edu.my/id/eprint/111942/
https://www.tandfonline.com/doi/abs/10.1081/PLN-100103778
_version_ 1825810707728302080
score 13.244413

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