GAURI MOHAN* AND KHOGEN KURMI
Department of Agronomy,
Assam Agricultural University,
Jorhat, Assam, India
*(e-mail : firstname.lastname@example.org)
(Received : 8 March 2020; Accepted : 22 March 2020)
An experiment was carried out during 2016-2017 at the Instructional-cum-Research (ICR) Farm, Assam Agricultural University, Jorhat to study the effect of relative profitability of dual purpose maize production. The experiment was laid out in a randomized block design (RBD) with eight treatments replicated thrice. In this experiment maize were grown at different inter-row and intra-row spacing for grain (T1) at a spacing of 60 cm × 30cm, fodder (T2) at 30 cm × 15 cm. Fodder cum grain crop at 30cm × 30 cm with removal of alternate rows at knee-high stage (T3), tasseling stage (T4) and milking stage (T5) for fodder. Fodder cum grain crop at 30cm × 15 cm with removal of alternate rows at knee-high stage (T6), tasseling stage (T7) and milking stage (T8) for fodder. Two levels of fertilizer viz., F1 : 100 % recommended dose of fertilizer and F2 : 150% of recommended dose of fertilizer. The crop management practice T7 recorded the highest gross return (Rs. 1,20,951/ha) and crop management practice T1 recorded the highest net return (Rs. 90,631/ha) followed by crop management practice T7 (Rs. 83,333/ha). Among the fertilizer level F2: 150% of recommended dose of fertilizer recorded highest gross return (Rs. 1,05,543/ ha) and highest net return (Rs. 70,650/ha). The highest Benefit: Cost ratio of 4.46 was, however, found in grain crop sown at a spacing of 60cm × 30cm (T1) and was almost equal (3.22) to the high density (30cm × 15cm) fodder cum grain crop followed by removal of alternate rows at tasseling stage for fodder (T7).The highest Benefit: Cost ratio (3.02) in terms of levels of fertilizer was found in 150 per cent of recommended dose of fertilizer.
Key words:Maize, knee- high stage, tasseling stage, milking stage