Abstract

                                Experiments were conducted at Tamil Nadu Agricultural University, Coimbatore to study the effect of surge irrigation on yield attributes, yield and economics of sunflower (Co-2) in summer and monsoon seasons of 1996. The crop was grown in double row planting. No significant difference was observed between surge and continuous irrigation. Considering amendments, coconut fibre waste application (with additional dose of NPK) significantly increased yit ad attributes and yield as compared to FYM application. Among the sectors, sector I recorded higher values which was comparable with Sector II and IV. Sector III significantly different from other sectors in first crop. In second crop Sector-1 was comparable with sector II and IV and again Sector IV was comparable with sector III. The higher net returns with high benefit cost ratio was observed in surge irrigation as compared to continuous irrigation. Also coconut fibre waste applied plots recorded increased yield.

Key words : Surge irrigation, sunflower, yield attributes, yield, economics