The study looked at how adding extra nitrogen and nano zinc to wheat plants affected their growth and yield. They tested different treatments on wheat crops and found that the plants treated with nitrogen at 125% and nano zinc at 4ml had the best results. These plants grew taller, had more tillers, and produced more grains and straw. They also had higher grain and straw yields, as well as increased gross and net returns. Overall, the combination of nitrogen and nano zinc led to better growth and higher yields in wheat crops.