Vol. 17 No. 3
Planting pattern and weed control measure on yield and profitability of Maize (Zea mays)+Urdbean (Vigna mungo) intercropping in Himalayan tarai
Abstract: A field study was conducted at Norman E. Borlaug, Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar to establish suitable planting techniques and weed control practices for getting higher yield and profitability of maize+urdbean intercropping system.Urdbean pure recorded lesser total weed density and dry weight followed by paired rows maize (30/90cm)+urdbean (2:2). Maize sole and maize + urdbean (1:1) recorded higher weed density and weed dry weight. Weed control efficiency (60.5%) was high in paired rows of maize (30/90cm)+urdbean (2:2) compared to sole planting of maize and urdbean. Sole planting of urdbean and maize recorded higher values of yield attributes and yield than. maize+urdbean (1:1) and paired rows planting of maize (30/90cm) +urdbean significantly produced higher urdbean equivalent yield and land equivalent ratio than sole either urdbean or maize. Lower weed density and weed dry weight was recorded in weed free followed by pendimethalin 1.0 kg ha-1+ hand weeding (25 days after sowing). Highest net return (ยน 46621 ha-1) and benefit: cost ratio (1.83) was under maize (60 cm) +urdbean (1:1) followed by maize (30/90 cm) +urdbean (2:2). Amongst the weed control practices weed free calculated maximum values of gross return, net return and benefit : cost ratio (2.22) followed by pendimethalin 0.75 kg ha-1(Pre-emergence) + hand weeding (25 days after sowing) (1.88).
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