A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production
In the study of the effects of nitrogen and copper fertilization on rice yield when four rates of N (0, 60, 120 and 180 kg N/ha) as 15N labelled urea and three rates of Cu (0, 5 and 10 kg Cu/ha) were applied, grain yield increased significantly with increasing N rates upto 120 kg N/ha. The recovery...
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| Format: | Article |
| Language: | English |
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Pakistan Council of Scientific and Industrial Research
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/12641/ http://psasir.upm.edu.my/id/eprint/12641/1/A%2015N%20tracer%20study%20to%20evaluate%20the%20effects%20of%20nitrogen%20and%20copper%20fertilization%20on%20fertilizer%20nitrogen%20efficiency%20in%20rice%20production.pdf |
| _version_ | 1848841889677049856 |
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| author | Choudhury, Abu Turab Mohammad Ali Yusop, Mohd. Khanif |
| author_facet | Choudhury, Abu Turab Mohammad Ali Yusop, Mohd. Khanif |
| author_sort | Choudhury, Abu Turab Mohammad Ali |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In the study of the effects of nitrogen and copper fertilization on rice yield when four rates of N (0, 60, 120 and 180 kg N/ha) as 15N labelled urea and three rates of Cu (0, 5 and 10 kg Cu/ha) were applied, grain yield increased significantly with increasing N rates upto 120 kg N/ha. The recovery of fertilizer N was around 40% irrespective of N and Cu rates. Copper application at 10 kg/ha increased grain yield by 0.53 t/ha insignificantly.
Cu content in the straw was below the critical deficiency level of 6 mg/kg. Thus higher rate of Cu fertilizer (above 10 kg/ha) in soil increase rice yield and fertilizer
N efficiency if Cu is applied as basal. Alternately, Cu may be applied as foliar spray on standing crop to avoid Cu
adsorption in the soil. |
| first_indexed | 2025-11-15T07:50:25Z |
| format | Article |
| id | upm-12641 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:50:25Z |
| publishDate | 2009 |
| publisher | Pakistan Council of Scientific and Industrial Research |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-126412015-11-04T01:01:19Z http://psasir.upm.edu.my/id/eprint/12641/ A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production Choudhury, Abu Turab Mohammad Ali Yusop, Mohd. Khanif In the study of the effects of nitrogen and copper fertilization on rice yield when four rates of N (0, 60, 120 and 180 kg N/ha) as 15N labelled urea and three rates of Cu (0, 5 and 10 kg Cu/ha) were applied, grain yield increased significantly with increasing N rates upto 120 kg N/ha. The recovery of fertilizer N was around 40% irrespective of N and Cu rates. Copper application at 10 kg/ha increased grain yield by 0.53 t/ha insignificantly. Cu content in the straw was below the critical deficiency level of 6 mg/kg. Thus higher rate of Cu fertilizer (above 10 kg/ha) in soil increase rice yield and fertilizer N efficiency if Cu is applied as basal. Alternately, Cu may be applied as foliar spray on standing crop to avoid Cu adsorption in the soil. Pakistan Council of Scientific and Industrial Research 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/12641/1/A%2015N%20tracer%20study%20to%20evaluate%20the%20effects%20of%20nitrogen%20and%20copper%20fertilization%20on%20fertilizer%20nitrogen%20efficiency%20in%20rice%20production.pdf Choudhury, Abu Turab Mohammad Ali and Yusop, Mohd. Khanif (2009) A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production. Pakistan Journal of Scientific and Industrial Research, 52 (1). pp. 53-58. ISSN 2221-6413; ESSN: 2223-2559 |
| spellingShingle | Choudhury, Abu Turab Mohammad Ali Yusop, Mohd. Khanif A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title | A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title_full | A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title_fullStr | A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title_full_unstemmed | A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title_short | A 15N tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| title_sort | 15n tracer study to evaluate the effects of nitrogen and copper fertilization on fertilizer nitrogen efficiency in rice production |
| url | http://psasir.upm.edu.my/id/eprint/12641/ http://psasir.upm.edu.my/id/eprint/12641/1/A%2015N%20tracer%20study%20to%20evaluate%20the%20effects%20of%20nitrogen%20and%20copper%20fertilization%20on%20fertilizer%20nitrogen%20efficiency%20in%20rice%20production.pdf |