Weed management in groundnut with diclosulam herbicide

The efficacy of diclosulam herbicide in managing weeds and improve groundnut yield was tested in this study on weed management in groundnut (Arachis hypogaea L.). The diclosulam pre-plant incorporation (PPI) and pre-emergence application (PE) significantly reduced the sedges density. The diclosulam 27 g/ha PE followed by (fb) hand weeding (HW) at 50 days after seeding (DAS) recorded highest weed control efficiency (80.44%) and lowest (92) weed density (number /m²) at 80 DAS. Number of groundnut pods per plant and pod yield was significantly higher with diclosulam 27 g/ha PE fb) HW at 50 DAS and also gave the highest net return of ₹ 1,07,335/ha and B:C ratio of 2.32 followed by hand weeding twice at 30 DAS and 50 DAS and diclosulam 27 g/ha PPI fb HW at 50 DAS.