Pradeep Kumar Dewangan*, M.S. Yadava, Pratima Kumari, Akhilesh K. Lakra, Sooraj Chandra Pankaj, and Varun Kumar
Department of Agronomy, Birsa Agricultural University, Ranchi-834 006 (Jharkhand)
Email: dewangan2050@gmail.com
Received-16.02.2017, Revised-13.03.2017
Abstract: A field investigation was conducted at BAU experimental Farm, Ranchi during kharif season 2015 on sandy clay loam soil. The experiment was laid out in a RBD with 13 treatments: pretilachlor 1.0 kgha-1 PE (T1),atrazine 1.0 kgha-1 PE (T2),pendimethalin 1.0 kgha-1 PE (T3), metribuzin 0.35 kgha-1 PE (T4),pretilachlor 0.5 + metribuzin 0.175 kgha-1 PE (T5), atrazine 0.5 + pendimethalin 0.5 kgha-1 PE (T6), pretilachlor 1.0 kgha-1 at 15 DAS (T7), metribuzin 0.35 kgha-1 at 15 DAS (T8), atrazine 1.0 kgha-1 at 15 DAS (T9), green manuring by Sesbania @ 80 kgha-1 fb 2,4-D 0.625 kgha-1 at 30 DAS (T10), two mechanical weeding at 20 and 40 DAS (T11), two hand weeding at 20 and 40 DAS (T12),and weedy Check (T13), replicated thrice. Results revealed that gross return (70591Rs.ha-1), net return (44623Rs.ha-1) and B: C ratio (1.72) were observed maximum due to application of same treatment (atrazine 0.5 + pendimethalin 0.5 Rs.ha-1PE). The cost of treatment (atrazine 0.5 + pendimethalin 0.5 kg ha-1PE) is much lower (1768 Rs.ha-1) against mechanical weedings (3749 Rs.ha-1) and hand weedings (9372 Kg.ha-1).
Keywords: Maize, Weed management, Economics, Investigation
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