土壤精准管理变量施肥地理信息系统的应用研究

Development of GIS Application System for Variable Rate Fertilization in Soil Precise Management

为了因地制宜地对不同田块进行变量施肥管理 ,达到精准农业要求 ,开发一个基于组件技术的田间施肥决策地理信息系统 .系统采用OLE控件技术———ESRI公司的MapObjects功能组件 ,在可视化软件平台VisualC ++6.0上 ,实现GIS的数据存储与管理、空间查询与分析等复杂的功能 ,根据土壤测试分析数据和已有的产量等有关信息 ,可以自动生成田间变量施肥处方 ,并进行智能决策 ,获得对土壤的精确管理实施方案 .

In order to meet the needs of the different fields with variable rate fertilization in precision agriculture, an GIS application system based on ComGIS is developed. Visual C + + 6.0 and technique of OLE - MapObjects developed by ESRI company is adopted. It realizes the basic functions, such as data input and output, data storage and update, and the complex functions such as spatial query and analyse. The field fertilizer prescription can be built automatically according to the data of soil nutrient and crop yields of past years. By means of linking intelligence decision-making system, the system can gain the precise scheme for soil nutrient.