Alachlor at 2.0 kg ha−1, pendimethalin at 1.5 kg ha−1, hand weeding 20 DAS against weedy condition were evaluated under sole maize (60 cm), paired rows of maize (30/90 cm)+two rows of soybean and, one row of soybean in between two rows of maize spaced 60 cm. All the weed control treatments effectively controlled the weeds and produced significantly more maize and soybean grain yields and maize equivalent yield as compared to weedy condition. However, alachlor proved better than pendimethalin and hand weeding. Intercropping of maize and soybean either paired rows of maize or one row of soybean in between two rows of maize adversely affected the weed growth and caused 22.4 and 31.9% weed suppression, respectively, over sole maize. Maize and soybean intercropping systems recorded significantly more maize equivalent yields as compared to sole maize. However, one row of soybean in between two rows of maize provided significantly higher maize equivalent yield (67.8%) over paired rows of maize (2609 kg ha−1).
