Design And Implementation Of Soil Testing And Formula Fertilization Expert System In Qianfeng District Of Guang’an City Based On ArcGIS Engine

Agriculture is so important part of China’s industrial structure,and the degree of agricultural development is the guarantee of China’s national security and social stability.At present,China’s agriculture is mainly cultivated land,through the cultivation of crops to produce food and primary industrial raw materials,so improving crop yield is one of the main directions of agricultural development.Chinese agriculture increases yield through fertilization.However,without scientific guidance,the phenomenon of indiscriminate fertilization has existed for a long time.This behavior not only pollutes the environment,but also does not increase the yield,which seriously restricts the development of modern agriculture in China.In order to solve these problems,experts put forward soil testing and fertilization technology.Under this background,this paper takes the Guang’an forward area as the research object,studies and analyzes the status of soil in Qianfeng District,and develops the soil testing and formula fertilization system according to the existing soil data and GIS technology.The main research results of this paper are as follows:(1)Soil testing and formula fertilization and soil nutrient analysis in the study area:Based on the analysis of the current situation of soil testing and formula fertilization,the main problems of fertilization are put forward;According to the grading evaluation of soil nutrient content,it is concluded that the soil nutrient is at an appropriate level and the comprehensive fertility grade is intermediate;The spatial distribution characteristics of soil nutrients were studied by GIS spatial interpolation method.(2)Design of soil testing and formula fertilization expert system: Based on the research of soil testing and formula fertilization theory and model,the soil testing and formula fertilization expert system is designed and developed based on Component GIS development technology from five aspects: system design demand analysis,system development environment and platform,system function design and database design and construction.(3)Function realization and application of expert system: the soil testing and formula fertilization expert system adopts WPF(Windows Presentation Foundation)interactive user graphical interface technology to design the system interface in a flat way.The specific functions mainly include the search and search function of soil testing and formula fertilization scheme,soil sample test data query,soil sample test data query,fertilizer common sense consultation The scientific fertilization consultation of main crops has solved the problem of backward information management.