综合气候条件的变量施肥决策支持系统研究

摘要

实施精准农业是促进农业可持续发展的有效途径,而变量施肥是精准农业的核心.介绍了一种基于养分平衡法的变量施肥决策支持系统的功能及其组成,并将气候条件考虑到参数的确定中,初次利用气候条件确定其中一个参数-"目标产量",从而使施肥量更加合理.系统综合考虑了气候条件对目标产量的影响,比传统的以地定产法更贴近实际;以ASP.NET为网络开发技术、VisuaStudio.Net为编程环境、VC++6.0为编程语言,使用Microsoft SQL Server开发数据库,并利用GIS相关软件进行专题图制作.与其他系统相比,此系统具有操作简单、成本低的特点.%Precision farming is the necessary way for sustainable development in China, and variable rate fertilization is core of it This paper introduced the function and composition of a variable fertilization decision support system based on the nutrient balance method, and took weather conditions into account in determining the parameters, the initial used of one parameter to determine weather conditions-"target yield", so fertilization more reasonable amount. The system took into account climatic conditions of the target yield, in order to link total payroll than the traditional method closer to reality. This variable fertilization decision support system was that ASP.NET was a web development technology, VisuaStudio. Net for the programming environment, VC++ for the programming language, Microsoft SQL Server for the database and GIS software for producing thematic maps. Comparing with other systems, this system was simple and Iow cost.