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sumitsow19@gmail.com
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Department of Agronomy, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, 848125, India
Economics, Ginger, Glyphosate + oxyfluorfen, Hand weeding, Yield, Weed control efficiency
A field experiment was carried out in 2014 and 2015 to evaluate the effect of integrated weed management on growth, yield, weed control efficiency and economics of ginger. The experiment was laid out in a randomized block design with nine integrated weed management treatments and three replications. The results revealed that hand weeding twice at 30 and 60 days after planting (DAP) recorded the lowest weed population 6.20 and 7.38/m2, dry weight 11.80 and 10.23 g/m2 at 75 DAP and the highest weed control efficiency (WCE) 85.0 and 86.6% in 2014 and 2015, respectively, which was followed by application of glyphosate 0.80 kg/ha + pendimethalin 1.5 kg/ha and glyphosate 0.80 kg/ha + oxyfluorfen 0.2 kg/ha before the emergence of sprouts of ginger in both years. However, glyphosate 0.80 kg/ha + pendimethalin 1.5 kg/ha (25 DAP) and glyphosate 0.80 kg/ha + oxyfluorfen 0.20 kg/ha (25 DAP) significantly improved the rhizome yield to the tune of 86.9, 81.5 and 91.8, 93.9% over the control during the years, respectively. The highest B: C (2.07) was obtained with glyphosate 0.80 kg/ha + oxyfluorfen 0.20 kg/ha (25 DAP) followed by unweeded control. Hence, it was concluded that for better ginger productivity and weed management two-hand weeding at 30 and 60 DAP; or application of glyphosate 0.80 kg/ha + oxyfluorfen 0.2 kg/ha is the most potential and viable practice.