文献类型： 外文期刊
作者： Zhu, ZS 1 ; Sun, L 1 ;
作者机构： 1.JiangSu Acad Agr Sci, Nanjing 210014, JiangSu, Peoples R China
关键词： spatial fertilization management;geographic information system
期刊名称：WORK SCIENCES IN SUSTAINABLE AGRICULTURE
ISSN：
年卷期： 1999 年
页码：
收录情况： SCI
摘要： A GIS-based management system for farm scientific fertilization was developed to investigate the possibility of scientific fertilization with spatially variable field operations. The basic method used in design and implementation of the system is in detail discussed. The system was equipped with a commercial GIS to simulate true general process of spatial fertilization management and to provide very satisfactory recommendations of fertilization for its users. An entity relationship model for building basic framework of the system was used to complete analysis and design of the system. The finally designed system meets the requirements of farmers and the system implementation.
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