Through the summarization and analysis of the knowledge on mechanized conversation tillage, this paper conceptualize and theorize the processes of corn and wheat tillage. A Expert System of mechanized conversation tillage, which is applied in the region with a crop one year, is firstly developed in domestic. The development of the Expert System introduces the thought of software engineering and adopt B/S network structure.This system possesses these function such as the guidance for planting, comparison of yield, making decision for prevention and cure of plant disease and insect pests, training and communication. It contains all the processes of corn and wheat tillage, from harvesting, straw disposal, sowing, to farm management. The feasibility of this system have been proved through running it on LAN.The system has friendly interface to operate conveniently. This system make a useful try for the study, application and popularization of the mechanized conversation tillage.
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