Research And Development Of Knowledge Database For Vegetable Disease And Pest Prevention And Control System

Agricultural expert system is a new technology developed according to agricultural characteristics. Combining information technology and agricultural technology, the system sucessfully soluted integrated provetion and control of vegetable pests and diseases and other issues in the areas of cultivation and crop protection.A knowledge database is an important part of the vegetable pest and disease provention and control expert system,providing knowledge required in system running process.Efficient and complete construction of the knowledge base will play a very important role in the improving performance of the entire vegetable pest and disease provention and control system.Based on full analysis of primary user needs, ultilizing the experience of experts, this subject completes a knowledge database design for a vegetable pest and disease provetion and control system. Knowledge classification and representati-on methods in the vegetable pest and disease diagnosis area are proposed through detailed analysis of the characterristics of knowledge of the area.According to the characteristics of vegetable pest and disease diagnosis knowledge, using SQL Server as a tool, this subject creates a vegetable pest and disease prvention and control knowledge base. System uses B/S structurion, Visual C# language as the development platform,and Microsoft Visual Studio.net as the development tools. It mainly consists of vegetable management, disease management, vegetable diseases, agricultural management, agricultural recommendation, pollution-free prevention and control scheme, integrating a variety of common vegetable pest and disease prvention and control technology, agricultural use technology. This system can save,add,delete,modify and query of text,picture documents for many kinds of vegetable pests and diseases,providing necessary foundation to the development and utilization of vegetable pest and disease expert system.System development for the majority of agricultural workers and farmers, to provide non-pollution vegetable production safety, the main pest and disease identification and control and scientific management, service platform, with a strong grass-roots practical value and development prospects.