The mushrooming growth of population has put an enormous thrust on agri-agro activities in developing democratic countries like India. For the production of grain and fodder per demand of public, fertilizers and omnicides are being used in quantities in progression. These supplements to grow more food are consumed by plants only partially and the rest one causes adverse effects on living beings. In the present work an account of unused nitrogenous fertilizers by plants in crop rotation of one year has been done and through computational approach an assessment of prospective adverse effects on human health has been forecasted.