Development of web-based decision support system for field-based crop management

A web-based decision support system, GZ-AgriGIS, was developed to assist local farmers in the region of Guangzhou, China make field-based crop management decisions, e.g. fertilizer applications (replacement) and irrigation. The system was aimed to share available site-specific agricultural domain knowledge and analytical models with the local farmers. The representation of domain knowledge and organization of analytical models were outlined. Considering the micro-environmental variations of the region, we paid special attention to the spatial suitability of domain knowledge and analytical models. Through the online service of GZ-AgriGIS, farmers can easily acquire scientific guidance for crop management decisions.