Abstract
A field experiment was conducted during 2015-16, 2016-17 and 2017-18 at Agricultural Research Station, Hanumanamatti, Ranebennur (Tq), Haveri (Dist.) Karnataka, to study the effect of chemical herbicides on weed management in garlic. The treatments consisted of pre emergent application of Pendimethalin, Oxyfluorfen, Quizalofop ethyl and Butachlor. The pooled mean results indicated that, pre-emergent application of Butachlor 50 EC @ 1.0 kg ai/ha + one hand weeding + second spray at 30 days after planting (B1HW2S:T7) recorded the least weed density (82.83, 89.67 monocot weeds and 8.15, 6.34 dicot weeds), weed bio-mass (80.99g, 93.33g fresh weight of monocot weeds and 8.48g, 1.82g fresh weight of dicot weeds, 32.40g, 37.33g dry weight of monocot weeds and 3.39g, 0.73g dry weight of dicot weeds), the highest garlic plant height (4.34cm, 16.17 cm), number of leaves (3.55, 6.57) at 30 and 60 days after planting respectively. Treatment with Butachlor 50 EC @ 1.0 kg ai/ha + one hand weeding + second spray at 30 days after planting (B1HW2S:T7) also recorded the highest hundred bulb weight (912.98 g), yield per plot (2056.63g) and yield/ha (41.13 Q) followed by Oxyflurofen 23.5 EC @ 0.15 kg ai /ha + one hand weeding + second spray at 30 Days after planting (O1HW2S:T4) compared to farmer’s practice (2HW:T8) and untreated control (WC:T9).
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