INFLUENCE OF NITROGEN AND SULFUR ON WEEDS DENSITY AND PHENOLOGY OF WHEAT AND TRITICALE

Crop productivity is highly emphasized by effective crop stand and efficient weeds control management. Commercial fertilization has gained supreme importance in Pakistani cropping system because of the increasing demand of food day by day. Fertilizer management is the key in the prevailing conditions. The study titled “Influence of nitrogen and sulfur on phenology and weeds density of wheat and triticale” was therefore laid out at the Agronomy Research Farm of the University of Agriculture, Peshawer, Pakistan during 2014 in a randomized complete block design with three replications. The trial consisted of three levels of nitrogen and sulfur with two crop species (wheat and triticale) and a control for each crop species. The data was recorded on days to booting, heading, anthesis, maturity and weeds density m^-2. The results showed that the higher levels of both the fertilizers 120 kg N ha^-1 and 45 kg S ha^-1 delayed booting, heading, anthesis and maturity of both the crops. Triticale was earlier to reach booting, heading and anthesis stage but was found late to obtain maturity. Similarly weeds density positively responded to the increasing rate of both fertilizers. Wheat crop recorded more weeds density as compared to triticale. Based on the experimental facts 120 kg N ha^-1 and 30 kg S ha^-1 is recommended for valuable crop stand and effective weed management.