Volume 38, Number 1
+ Volume 38, 2019
Issue 1
+ Volume 37, 2018
+ Volume 36, 2017
+ Volume 35, 2016
+ Volume 34, 2015
+ Volume 33, 2014
+ Volume 32, 2013
+ Volume 31, 2012
Science, Technology and Development Vol. 37 (2), 2018
Research Article
Effect of Nitrogen Fertilizer Application Methods on Wheat Yield and Quality
Muhammad Sohail, Imtiaz Hussain, Sikander Khan Tanveer, Syed Haider Abbas, Maqsood Qamar, Muhammad Shahzad Ahmed and Sundas Waqar
Abstract: Nitrogen fertilizer application at different growth stages is likely to improve N use efficiency, grain quality and yield of wheat crop. Application of right N fertilizer dose at right time can help to reduce production cost and environmental pollution as well. The research work was carried out to examine the effect of nitrogen fertilizer, when applied in different combinations of split doses at sowing, tiller formation, stem elongation and grain filling. The trial was carried out in RCBD with four N fertilizer application treatments and three replications. The recommended dose of nitrogen fertilizer application (120 kg N ha–1) produced significantly higher grain yield (5060 kg ha–1), when it was applied in four split doses (30, 30, 30 and 30 Kg ha–1) at sowing, tiller formation, stem elongation and grain filling stages, respectively (T4). Grain yield was observed minimum (3230 kg ha–1), when nitrogen was applied as single basal dose (120 Kg ha–1) at sowing time. The results indicate that no N fertilizer applied at tiller formation significantly (P<0.05) reduced numbers of spikes m–2 and grains per spike. Grain weight was significantly reduced when no N application was done during grain filling duration. At the same time, N application in four split doses (T4) also resulted in significantly increased (P<0.05) seed protein (14.9%) in comparison to treatments T3, T2 and T1. Results also showed similar trend in case of gluten content of the grain. However, no nitrogen application during grain filling stage reduced gluten content significantly. The results revealed that N fertilizer application in four split doses at sowing, tiller formation, stem elongation and grain filling stages not only enhanced grain yield but also improved grain quality.
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