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Effect of nitrogen fertilizer on yield and nitrogen use efficiency of four aromatic rice varieties

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Title Effect of nitrogen fertilizer on yield and nitrogen use efficiency of four aromatic rice varieties
 
Creator Djaman, Koffi
 
Contributor Bado, Vincent
Mel, Valere Cesse
 
Subject aromatic rice
nitrogen use efficiency
production function
crop
yield
Rice
 
Description The objective of this study was to optimize nitrogen fertilizer for higher yield and nitrogen use efficiency of four aromatic rice varieties.
Field experiments were conducted at Ndiaye and Fanaye (Senegal) during the hot and dry season 2012 and the wet season 2012 to
evaluate the effect of nitrogen on rice yield and nitrogen use efficiency under phosphorus and potassium omission management. Five rates
of nitrogen (0, 60, 90, 120 and 150 kg/ha) were associated with P (26 kg P/ha); or P-K (26 kg P/ha and 50 kg K/ha). Four aromatic rice
varieties Pusa Basmati, Sahel 329, Sahel 177 and Sahel 328 and a non-aromatic variety Sahel 108 were evaluated. Results showed that
across genotypes, rice yield varied from 3.3 to 8.6 Mg/ha under N-P fertilizer and from 3.5 to 8.8 Mg/ha under N-P-K fertilizer at Ndiaye.
At Fanaye, rice yield varied from 3.7 to 8.6 Mg/ha under N-P fertilizer and from 3 to 10.3 Mg/ha under N-P-K fertilizer. The highest grain
yield was obtained by Sahel 177 among the aromatic rice varieties. The optimum nitrogen dose varied with rice genotype and location.
The PFPN and the ANUE were influenced by genotype and varied from 161 to 28 kg grain/kg N and from 105.9 to 0.9 kg grain/kg N,
respectively. The highest PFPN was obtained by Sahel 108 followed by Sahel 177. K addition to N-P significantly increased ANUE from
6.4 to 20.78 kg grain/kg N. The aromatic rice variety Sahel 177 is the performing alternative to the non-aromatic rice Sahel 108 in Senegal.
 
Date 2016-01-05
2017-02-08T22:43:52Z
2017-02-08T22:43:52Z
 
Type Journal Article
 
Identifier http://oar.icrisat.org/id/eprint/9478
https://mel.cgiar.org/reporting/download/hash/DucihYhx
Koffi Djaman, Vincent Bado, Valere Cesse Mel. (5/1/2016). Effect of nitrogen fertilizer on yield and nitrogen use efficiency of four aromatic rice varieties. Emirates Journal of Food and Agriculture, 28(2), pp. 126-135.
https://hdl.handle.net/20.500.11766/5579
Open access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher College of Food and Agriculture, United Arab Emirates University
 
Source Emirates Journal of Food and Agriculture;28,(2016) Pagination 126,135