Response of sunflower (Helianthus annuus L.) to nitrogen and sulphur

Abstract

A field experiment was conducted to study the effect of nitrogen and sulphur on seed yield and quality of sunflower (Helianthus annuus L.). Among the various treatments tried, maximum seed yield (22.51q/ha) was obtained with the combined application of 100Kg. nitrogen and 45Kg. Sulphur ha-1, closely followed by the combination of S @ 100 Kg., N and 65 Kg S ha-1 (21.10 q/ha), and 100Kg N and 25 kg S ha-1 (20.28q/ha). The increase in yield might be attributed to elongation in shoot height, diameter of head, seed per head, Test weight, Oil content, Seed yield and Oil content were significantly increased by N and S application over control, the combination treatments were also beneficial effecting better seed quality, maximum oil content.