RCM
Rice crop manager (RCM) -Odisha is a web based nutrient management tool, which gives region specific NPK recommendation on the basis of cropping history. The farmers can get the fertilizerrecommendation by simply filling the information regarding the previous crop history, rice variety etc.
http://webapps.irri.org/in/od/rcm/
http://webapps.irri.org/in/od/rcm/questionnaires/RCMODQuestionnaireKharifEN2.pdf