Abstract
Studies were undertaken to evaluate the response of autumn planted sunflower (Helianthus annuus L.) to
different levels of N, P and K fertilizers at the Agronomic Research Farm, University of Agriculture, Faisalabad
during, 2004 and 2005. Treatments comprised five N levels (0, 60, 90, 120 and 150 kg ha-1), five P levels (0, 30,
60, 90 and 120 kg ha-1), four K levels (0, 60, 90 and 120 kg ha-1) in different combinations and two hybrids viz.
FH-314 (standard height) and FH-245 (semi dwarf). Hybrid FH-314 produced significantly higher achene yield
(2725.41 kg ha-1) than that of FH-245. There was a progressive increase in achene yield and yield components
with increasing levels of N, P and K. The highest achene yield (3023 kg ha-1) and highest net benefit (Rs.19743)
was obtained when the crop was fertilized @ 120:90:60 kg NPK ha-1.
