Field experiments were conducted during rabi season of 2014-15 and 2015-16 at crop research farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology & Sciences, Paryagraj (UP) to study the effect of tillage practices, nitrogen and zinc management on wheat (Triticum aestivum L.) productivity and quality in the NEPZ. Two tillage practices were taken in main plot and different sources of organic manure and fertilizer management of nitrogen and their combination were assigned to sub plot with foliar spray of zinc along with control (no foliar spray) in sub sub plot in a Split split plot design or double split plot design. The experiment was replicated thrice. Results of the experiments revealed that yield and yield attributes viz., grain yield (3.78 t/ha) were significant and highest was found in among the tillage practices treatment T1. Number of spikelets per spike (16.00), grain yield (4.00 t/ha) and straw yield (7.87 t/ha) were significantly higher in nitrogen management N5. Further, in the zinc foliar spray significantly higher grain yield (3.70 t/ha) and straw yield (7.64 t/ha) was found in treatment Z1 during 2014-15. In the year 2015-16 grain yield (4.01 t/ha) were significantly higher among the tillage practices treatment T1. Grain yield (4.63 t/ha) and straw yield (8.97 t/ha) were significantly higher in nitrogen management N3 and zinc foliar spray significant the highest grain yield (4.01 t/ha) and straw yield (8.08 t/ha) were found in treatment Z1.
The interaction exhibited that treatment combination T1N5Z1 resulted significantly higher grain yield (4.60 t/ha) during the year 2014-15. While, significantly higher grain yield (4.87 t/ha) recorded in treatment combination T1N3Z1 during the year 2015-16.