Background 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. PDFFulltextXMLReferencesCitation
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Jamil Hossain, Abul Awlad Khan, Md. Ariful Islam, Md. Rafiqul Islam, Md. Abdul Khayer Mian and Md. Dulal Ali Mollah, 2017. Phenology, Growth, Yield and Protein Content of Wheat as Influenced by Foliar Application of Nitrogen. Journal of Biological Sciences, 17: 142-150.