Abstract
Farmers manage the cropland in a decentralized manner at present in China,and usually fertilization could not be applied rationally and scientifically.This paper presented a variable fertilization system for dispersive farmer,which was designed on the basis of Geographic Information System(GIS).The system referred a relational database SQL Server 2008 as a built-in database,in order to store,inquire and update kinds of information,such as the variability of soil,the crop yields over the years,and the fertilization formulas.The statistical analysis of the soil attribute can be realized by spatial interpolation,the conversion from raster to vector,data fusion,and overlay analysis in the system.And a fertilization formula for a cropland can be generated automatically by invoking the yield model and the fertilization model.Furthermore,the fertilization formula can be delivered to SMC6480 to match the fertilizer scientifically.The experimental results indicate that the system is stable and reliable,and all the modules ran well.
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