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Field investigation was conducted at research farm, AC & RI, Coimbatore during rabi season 2015-2016 to assess the energy production and utilization of rice under different methods of transplanting and irrigation management practices. The experiment was laid out in strip plot design with three replications. The treatments comprised of four different method of transplanting viz., machine transplanting with 30 x 14 cm (M1), 30 x 18 cm (M2), SRI transplanting (25 x 25 cm) (M3) and conventional transplanting (20 cm x 10 cm) (M4), respectively in main plots and four method of irrigation management practices in sub plots viz., continuous submergence of 5 cm (I1), cyclic irrigation management (I2), SRI irrigation management (I3) and field water tube irrigation management (I4). The results of this study showed that the machine transplanting with 30 cm x 14 cm spacing coupled with SRI irrigation practice (M1I3) registered higher output energy and energy efficiency with higher yield of rice.

Key words: Energy efficiency, Field water tube irrigation, Input energy, Machine transplanting, Output energy, SRI irrigation, SRI transplanting, Yield