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《Journal of Anhui Agricultural Sciences》 2008-32
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Study on Manufacturing Technology of Soil Nutrient Spatial Variation Diagram in Precise Operation System of Corn

WANG Guan et al(Survey and Geographical Scientific Institute,Liaoning Technical University,Fuxin,Liaoning 123000)  
Corn was one of the three major grain crops,and the pillar industry in China.The production of corn suffered from many uncertain factors.The phenomenon of blind fertilizing and excess fertilization was common for a long time,which not only resulted in the increase of agriculture production cost,but also brought the serious pollution of the environment,and threated the safety of the agricultural product quantity.The statistics mold of GIS was used to analyze and draw the soil nutrient spatial variation diagram in core technique demonstration area and radiation extension area.The spatial variation rule of soil nutrient was discussed,which offered foundation data for precise variable fertilization.
【CateGory Index】: S513
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