Comparative efficacy of sprinkler and surface methods of irrigation in cumin (Cuminum cyminum) under arid western Rajasthan conditions

A field study was undertaken during winter seasons of 2002–03 and 2003–04 at Mandor-Jodhpur to compare the efficacy of sprinkler method of irrigation with conventional check-basin method and to work out an appropriate irrigation schedule and the operating time for sprinklers. The pooled results revealed that application of five irrigations through sprinklers operated for 3 hr produced seed yield (411 kg/ha) on a par with that of recommended irrigation schedule applied through conventional irrigation method, but it saved water up to 41 per cent with higher WUE (0.260 kg seed/m³) and net returns (Rs 16,558/ha). Further increase in irrigation frequency (six irrigations) did not cause significant impact on cumin productivity and net returns.