PJB-2022-172
IMPACT OF VARIOUS NITROGEN AND SULFUR SOURCES ON MAIZE-WHEAT YIELD AND N:S UPTAKES UNDER TWO DIFFERENT CLIMATIC CONDITIONS
Ibad ullah
Abstract
During the 2019-20 growing season, a field experiment was conducted in two locations (Peshawar and Buner) to investigate the effect of various nitrogen and sulfur sources on maize-wheat productivity and N:S absorption. As nitrogen sources, urea and FYM were used at three levels: 90, 120, and 150 kg ha-1 (50 percent inorganic and 50 percent organic). Sulfur was used as a control, with five different sources: elemental sulfur, gypsum, potassium sulfate, ammonium sulfate, and aluminum sulfate, as well as two levels of elemental sulfur, potassium sulfate, ammonium sulfate, and aluminum sulfate. Peshawar gets 20 kilograms of sulfur per hectare, whereas Buner gets 40 kilograms. This study looked at maize and wheat growth parameters like 1000 grain weight, grain yield, biological yield, and nitrogen and sulfur absorption. The results showed that applying 150 kg ha-1 of nitrogen, 50 percent organic and 50 percent inorganic, had a significant influence on all growth parameters during all sampling periods during the two seasons. The use of 50% organic and 50% inorganic nitrogen sources at a rate of 150 kg ha-1 produced impressive results, which were followed up with additional treatments. Grain weight, grain yield, and biological yield, as well as nitrogen and sulfur absorption, were 20 kg ha-1 S at Peshawar and 40 kg ha-1 S at Buner perform better as a source of ammonium sulfate followed by other sources, but the control plots had the lowest. There was also a strong connection between nitrogen and sulfur sources. The treatment that received 150 kg N ha-1 (50 percent organic and 50 percent inorganic) combined with 20 kg S ha-1 ammonium sulfate and 40 kg S ha-1 ammonium sulfate had the highest maximum 1000 grain weight, grain, and biological yield, as well as nitrogen and sulfur uptake. This experiment revealed that applying 150-kilogram nitrogen ha-1 (50 percent organic, 50 percent inorganic) in combination with 20 kg S ha-1 for Peshawar and 40 kg S ha-1 for Buner as an ammonium sulfate source produces higher maize-wheat yields and N:S absorption over time.
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