Abstract: India is an agricultural based country. In recent trends knowledge are upgraded by mobile enabled information services. Farmers need advice to take decision during their farming activities. Application of required amount of fertilizer at proper time and proper proportion will help in increasing the overall productivity of the farm and also safe guards the soil health and microbial biodiversity. This paper expresses the idea about the creation of Fertilizer Apps( F Apps) an android application that helps in delivering the rice crop specific fertilizer quantity to be applied. The idea is to calculate the amount of NPK fertilizers to be applied based on the blanket recommendation for the villages in Manikandam Block in Tiruchirappalli district. This application works based on the rice crop, village selected by the farmer and that is taken as input, thus providing the farmers with the blanket recommendation of the NPK fertilizers and the amount of Urea, SSP and MOP to be applied for selected village.

Keywords: NPK, Urea, SSP, MOP, Android App, NPK, Manikandam Block.