Ali, E.A. (2010) Grain yield and nitrogen use efficiency of pearl millet as affected by plant density, nitrogen rate and splitting in sandy soil. American-Eurasian Journal of Agricultural and Environmental Science, 7 (3). pp. 327-335.
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Abstract
Field experiments were conducted in Libya, during the 2008 and 2009 summer cropping seasons, to assess the effect of plant density (20×104, 25×104 and 33.3×104 plants/ha), nitrogen fertilizer rates (60, 90, 120 and 150 kg N/ha) and number of N doses (3, 6 and 9 splits) on grain yield and N use efficiency (NUE) of pearl millet in sandy soil. Results showed that plant density had significant effects on plant height, panicle length, 1000-grain weight, grain weight per panicle, number of panicles/m2, grain yield/ha and grain protein content as well as NUE. Sowing pearl millet at 25×104 gave the highest values of the studied traits in both seasons, except 1000-grain weight, grain weight per panicle and grain protein content, which performed well under the lowest plant density (20×104). On the other hand, increasing plant density significantly increased number of panicles/m2. Growth, yield and its components were increased with increasing N rates up to 150 kg/ha, as well as grain protein content. Applying N at 60, 90, 120 and 150 kg/ha resulted in NUE of 23.61, 17.43, 14.01 and 11.99 kg grains/applied N in 2008 and 24.46, 17.72, 14.00 and 11.89 kg grains/applied N in 2009, respectively. Increasing N splitting numbers significantly increased all the studied traits in the 2 cropping seasons. The maximum grain yields (2300.5 and 2450.3 kg/ha in 2008 and 2009 seasons, respectively) were obtained from plants grown at 25×104 and applied with 150 kg N/ha divided into 9 doses, while the highest values of NUE (29.68 and 30.01 kg grains/kg applied N in 2008 and 2009, respectively) were obtained from plants sown at 25×104 and applied with 60 kg N/ha divided into 9 doses
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Agronomy, Faculty of Agriculture, Assiut University, Assiut, Egypt |
| Subjects: | Plant Production > Production Practices |
| Divisions: | Millet |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 04 Jan 2011 15:58 |
| Last Modified: | 04 Jan 2011 15:58 |
| Official URL: | http://www.idosi.org/aejaes/jaes7(3)/13.pdf |
| URI: | http://eprints.icrisat.ac.in/id/eprint/1224 |
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