The field and laboratory experiment was carried out during kharif, 2005 to know the methane
emission as influenced by different crop establishment techniques and organic manures. The
experiment involved three crop establishment techniques viz., Transplanting, System of rice
intensification (SRI) and Aerobic and four sources of nutrients viz., recommended NPK, in-situ
green manure (Sunnhemp) + Rec. NPK, paddy straw manuring + Rec. NPK and FYM + Rec.
NPK. The SRI establishment technique recorded significantly higher methane emission during
early stages of crop growth (40 and 50 DAS). The methane emission under aerobic establishment
technique was lower than normal transplanting during early stages (40 and 50 DAS). During
early stage of crop growth (30 DAS), application of FYM with recommended NPK recorded
significantly higher methane emission. At later stages, incorporation of paddy straw with
recommended NPK recorded higher methane emission.