Among the seven integrated steel Plants in India, one major public sector plant is located at Rourkela. It was collaboration of Federal Republic of Germany in October 1956. Rourkela Steel Plant generate Blast Furnace Slag, Steel making slag, fly ash, BF sludge dust. Industrial wastes and agricultural byproducts are increasingly used in crop production as fertilizers, but their impacts on soil carbon C sequestration remain poorly understood. slag based silicate fertilizer has been widely used to improve soil silicon availability and crop productivity. Silicon is the second most abundant element in soil after oxygen. Steel slag was considered as an adequate source of Si and registered in 1995 in Japan as a fertilizer. As steel slag also contains trace amounts of heavy metals, certain oxidative parameters were evaluated as well. Steel slags can be used in several activities such as construction and paving and also in the agricultural sector due to its ability to correct soil acidity, as it contains some nutrients for the plants and also as silicate fertilizer that is capable of providing silicon to the plants. The present work is to study the effect of Steel Plant waste slag on Biomass and crop productivity of Moong plant. Slag fertilizer was first used in rice cultivation ,wheat cultivation, maize cultivation. Our aim is to check the effect of steel plant waste slag on biomass and crop productivity of Moong plant. To maintain our ecological balance, this waste material can be used or recycled back to the environment in a positive way. The present work was to study the effect of steel plant waste slag on the shoot region i.e; leaves, flowers and fruit in different concentration of slag treatment resulted variable impact in green gram plant but it is insignificant.