Journal of Biological Sciences1727-30481812-5719Asian Network for Scientific Information10.3923/jbs.2017.142.150HossainJamil KhanAbul Awlad IslamMd. Ariful IslamMd. Rafiqul MianMd. Abdul Khayer MollahMd. Dulal Ali 32017173Background and Objective: Foliar application of nitrogen (N) is an important technique in overcoming N deficit from different stresses particularly drought of wheat crop. However, the wheat crop response to foliar N are inconstant and there is limited understanding of its effects in Bangladesh. The aim of this study was to evaluate the effect of foliar spray of N on phenology, growth, yield and protein content of late sown wheat in rice-based cropping was pattern in Bangladesh. Materials and Methods: There were 10 treatments such as recommended fertilizer dose in soil (RD) with Foliar Spray (FS) of N at 40 Days After Emergence (DAE) (T1), RD with FS of N at booting stage (T2), RD with FS of N at heading stage (T3), RD with FS of N at milking stage (T4), RD with FS of N at 40 DAE and booting stage (T5), RD with FS of N at 40 DAE+heading stage and milking stage (T6), RD with FS of N at 40 DAE+booting stage and milking stage (T7), RD (T8, control treatment), half RD of N (T9) and half RD of N with FS of N at booting stage (T10). The experiment was laid out in a randomized block design with three replications. Three percent urea was used for foliar spray. Data were analyzed using Analysis of variance ANOVA and mean separation was done by LSD at p = 0.05. Results: The highest dry matter (1811.41 g m2), grain yield (4.02 t ha1) and protein content (12.37%) were obtained from T7 treatment. Gross return, gross margin and BCR were also higher in T7 than any other treatments and the lowest BCR (2.43) was calculated in half of recommended fertilizer dose of N (T9). Conclusion: Recommended fertilizer dose with foliar spray of N at 40 DAE+booting stage and milking stage delayed the senescence which lead to lengthen the duration of reproductive phase, increasing the grain yield (28.84%) as well as protein content (29%) compare to half of recommended fertilizer dose of N.]]>Hossain, A. and J.A. Teixeira da Silva,20132013BBS.,2016pp: 78-81pp: 78-81Johansen, C., M.A. Bakr, M.S. Islam, N.A. Mondal and A. Afzal et al.,2008108238249Mian, M.A.K., M.R. Islam and J. Hossain,2016395364Uddin, R., M.S. Islam, M.J. Ullah, P.K. Hore and S.K. Paul,20151897104BARC.,20122012Blandino, M., P. Vaccino and A. Reyneri,2015107680690Saleem, I., S. Javid, R.A. Sial, S. Ehsan and Z.A. Ahmad,201332141145Khan, P., M.Y. Memon, M. Imtiaz and M. Aslam,20094111971204Emam, Y. and A.R. Borjian,2010Triticum aestivum L.) cultivars in response to rate and time of foliar urea application.]]>2263270Gul, H., A. Said, B. Saeed, F. Muhammad and I. Ahmad,201165658Saeed, B., H. Gul, A.Z. Khan, L. Parveen, N.L. Badshah and A. Khan,2012Triticum aestivum L.) cultivars in response to soil and foliar fertilization of nitrogen and sulfur.]]>7121129Amanullah, I. Alam, I. Khan, M. Kumar and A. Shah,2015482331Jackson, M.L.,1973pp: 10-144pp: 10-144Gul, H., A.Z. Khan, S.K. Khalil, H.U.R. Rehman and S. Anwar et al.,201345951960Hossain, J., M.S. Alom, M.A.K. Mian and M.R. Islam,201656469Gomez, K.A. and A.A. Gomez,19842nd Edn.,Pages: 680Pages: 680Russel, D.F.,19941994Maitlo, A., Zia-Ul-Hassan, A.N. Shah and H. Khan,2006Triticum aestivum L.) in relation to foliar and soil application of urea.]]>8477481Hossain, J., A.K. Yasmin, A.K.M.R. Amin, P.K. Biswas, M.A.K. Mian and M.R. Islam,2013162938Amanullah, A.Z. Khan, A. Jan, Z. Shah and B. Ahmad et al.,2013Zea mays L.).]]>32135140Mian, M.A.K., M.R. Islam, J. Hossain and M.A. Aziz,2016197985Johnson, A., W.C. Dahnke and L.J. Swenson,2009462023Ali, S., A.R. Khan, G. Mairaj, M. Arif, M. Fida and S. Bibi,20082150157Mahmood, Q., W.D. Lei, A.S. Qureshi, M.R. Khan and Y. Hayat et al.,2006Triticum aestivum L. Emp. Thell).]]>1180185Khan, A.A., M.A. Alam, M.K. Alam, M.J. Alam and Z.I. Sarker,2013Triticum turgidum L. Var. Durum).]]>38515521Desheva, G.,2016142429