A field experiment was conducted at the Agricultural College Farm, Bapatla, to study the effect of in-situ incorporation of dhaincha, sunnhemp and pillipesara green manure at 60, 45 and 30 DAS. Highest biomass production was recorded from 60 day aged dhaincha. Soil organic carbon content 45 days after of incorporation of green manures (30 DAS of maize) was recorded maximum () from dhaincha incorporated plot which was significantly superior to sunnhemp and pillipesara. | Effect of in-situ incorporation green manures on soil organic carbon pH bulk density and economics involved in its incorporation