The Integrated Plant Nutrition Information System, referred to as IPNIS, is a database providing information for a number of countries on crop-wise plant nutrients management at administrative (district) level, supported by relevant data on soil and soil management, agro-ecological zones, and crop production constraints. In this database application, one can find the crops grown at different locations, their yields and cropping practices. More importantly, the actual fertilization practised by the farmers along with the extension service recommendations and research findings can be found, where available. It also provides information on major constraints the farmers are reporting in growing their crops as well as the soil management practices they are following.