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通过田间试验、土壤测试和农田地理信息资源开发 ,试图建立新疆芳草湖农场综合肥料效应模型 ,并以MapInfo 6 .0GIS为平台 ,建立相应的计算机棉田养分管理和精准施肥计算机系统。试验证明 ,与肥料效应函数法相比 ,综合肥料效应模型的肥料推荐量能够反映土壤养分对作物产量的贡献 ,适用范围更广 ,推荐施肥量比肥料效应函数法更准确可靠。将综合肥料效应模型、专家知识库与GIS整合 ,实现了以综合肥料效应模型为核心的基于GIS的计算机推荐施肥系统。系统集数据管理、数据分析和查询、统计汇总、施肥推荐和结果打印、地图编辑维护、专题地图为一体 ,基本实现了以GIS为平台的棉田土壤养分管理和施肥推荐
Through the field experiment, soil testing and the development of farmland geographic information resources, trying to establish the comprehensive fertilizer effect model of Fangcao Lake farm in Xinjiang and establishing the corresponding computer system of nutrient management and precision fertilization in cotton field using MapInfo 6 .0GIS as a platform. Experiments show that, compared with the fertilizer effect function method, the fertilizer recommendation of the integrated fertilizer effect model can reflect the contribution of soil nutrients to the crop yield and has a wider scope of application. The recommended fertilizer application rate is more accurate and reliable than the fertilizer effect function method. Based on the integrated fertilizer effect model and expert knowledge base integrated with GIS, a GIS-based computer-based fertilization system based on integrated fertilizer effect model was realized. The system integrates data management, data analysis and query, statistics summary, fertilization recommendation and result printing, map editing and maintenance, thematic maps as a whole, and basically realizes soil nutrient management and fertilization in cotton field with GIS as a platform