COMPARATIVE EFFICACY OF PURPLE NUTSEDGE ALLELOPATHY AND OTHER METHODS ON WEED MANAGEMENT IN BARLEY (HORDEUM VULGARE L.)

This research was made for the comparison of the effects of purple nutsedge allelopathy and other methods on the weed management in barely at Students’ Experimental Farm, Department of Agronomy, Sindh Agriculture University, Tandojam for weed as well as barely parameters having eight treatments with three replications. The data revealed that maximum weed number (45.6 m-2), weed fresh weight (20.6 g m-2), weed dry weight (6.3 g m-2) was observed under T1= No weeding (control). However, the maximum weed control (91.3%) was recorded under T7= Puma super 75 EW at 0.625 L ha-1, 50 reduced (30 DAS) + Purple nutsedge water extract at 15 L ha-1 (45 DAS). The barley crop results revealed that maximum tillers (355.6 m-2), plant height (106.3 cm), spike length (11.5 cm), grains spike-2 (47.3), seed index (51 g), biological yield (11737 kg ha-1), grain yield (4493 kg ha-1) and harvest index (41.9%) was recorded under T7= Puma super 75 EW at 0.625 L ha-1 50 % reduced (30 DAS) + Purple nutsedge water extract at 15 L ha-1 (45 DAS). Hence, current results manifested that proper application of puma super 75 EW at 0.625 L ha-1 50 % reduced (30 DAS) + Purple nutsedge water extract at 15 L ha-1 (50 DAS) produce maximum growth and yield parameters of barley crop. So, it was suggested that application of puma super 75 EW at 0.625 L ha-1, 50 % reduced (30 DAS) + Purple nutsedge water extract at 15 L ha-1 (45 DAS) apply for getting higher yield (4493 kg ha-1) of barley crop. It was finalized that this study will be very fruitful for the future progress of barley production.