This chapter presents a case study from India of a knowledge database which assembles a wide range of agricultural data relating to land holding, soil analysis, cropping patterns, past yield and fertilizer use. The case demonstrates how mobile phones are used to relay information to farmers. Particular attention is paid to investigating how a multiplicity of agencies, both government and private, can make use of such data. Because agencies and farmers themselves require tailored information packages, the 'broadcasting' of information is of limited value; rather 'narrowcasting' targeted information serves the farmers' needs better and it is more likely that the farmers will act upon the advice. The chapter assesses the use of tablets made available to farmer facilitators, for uploading/updating farmer data as well as downloading and sharing information with the farmers, and relaying information to experts in other locations.
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