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Shaiful Islam, M., Hasanuzzaman, M., Rokonuzzaman, M., Nahar, K.. (1391). Effect of split application of nitrogen fertilizer on morpho-physiological parameters of rice genotypes. , 3(1), 51-62. doi: 10.22069/ijpp.2012.631
M. Shaiful Islam; M. Hasanuzzaman; M. Rokonuzzaman; K. Nahar. "Effect of split application of nitrogen fertilizer on morpho-physiological parameters of rice genotypes". , 3, 1, 1391, 51-62. doi: 10.22069/ijpp.2012.631
Shaiful Islam, M., Hasanuzzaman, M., Rokonuzzaman, M., Nahar, K.. (1391). 'Effect of split application of nitrogen fertilizer on morpho-physiological parameters of rice genotypes', , 3(1), pp. 51-62. doi: 10.22069/ijpp.2012.631
Shaiful Islam, M., Hasanuzzaman, M., Rokonuzzaman, M., Nahar, K.. Effect of split application of nitrogen fertilizer on morpho-physiological parameters of rice genotypes. , 1391; 3(1): 51-62. doi: 10.22069/ijpp.2012.631

Effect of split application of nitrogen fertilizer on morpho-physiological parameters of rice genotypes

International Journal of Plant Production
مقاله 5، دوره 3، شماره 1، فروردین 2009، صفحه 51-62    اصل مقاله (179.61 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22069/ijpp.2012.631
نویسندگان
M. Shaiful Islam1؛ M. Hasanuzzaman* 2؛ M. Rokonuzzaman3؛ K. Nahar4
1Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh.
2Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.
3Department of Basic and Social Sciences, Chittagong Veterinary and Animal Sciences University Chittagong, Bangladesh.
4Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.
چکیده
An experiment was carried out to assess the effect of four nitrogen levels viz. T1 (full doze of urea i.e. 215 kg urea ha-1 at 15 DAT), T2 (full doze of urea at two equal splits, ½ at 15 DAT + ½ at 30 DAT), T3 (full doze of urea at two equal splits, ½ at 15 DAT + ½ at 55 DAT) and T4 (full doze of urea at three equal splits, 1/3 at 15 DAT + 1/3 at 30 DAT + 1/3 at 55 DAT) on morpho-physiological attributes of Boro rice genotypes viz. V1 (BINAdhan 5), V2 (Tainan 3) and V3 (BINAdhan 6). Plant height, number of tillers hill-1, number of leaves hill-1, leaf area hill-1 (cm2), DM (dry matter) of root, stem and leaves hill-1, TDM (total dry matter) hill-1 and chlorophyll content in leaves (at 74 DAT), were increased with the split application of N. Among the treatments, T4 showed the best performance and grain yield (45.25 g hill-1) compared to control (30.61 g hill-1). Among the genotypes, BINAdhan 5 and BINAdhan 6 showed similar performance in respect of most of the parameters but BINA dhan 6 produced the highest grain yield (40.26 g hill-1) compared to BINA dhan 5 (35.54 g hill-1) and Tainan 3 (33.90 g hill-1). Full dose of urea (215 kg urea ha-1) applied at three equal split at 15, 30 and 55 DAT was found to be the most beneficial one for the all the rice genotypes. Leaf chlorophyll content had a strong contribution to grain yield of rice.
کلیدواژه‌ها
Rice؛ Nitrogen؛ split application؛ Tillers؛ physiology؛ Chlorophyll, Yield
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