RIASSUNTO
Agricultural information engineering research is mainly focused on precise agriculture, database integration system and network information, virtual agriculture, expert systems, the connotation and extension, development stage, the impact of agricultural modernization, existing problems, countermeasures, etc. Based upon organization subject and object of agricultural information services, the agricultural information service model is explored from the government-led, market-based, market chain, research consultation, cooperation ties, coordination and demonstration model and other aspects of radiation.