The present situation of soil nutrients〔include available nitrogen(AN),available phosphorus(AP)and available kalium(AK)〕in Linwei District was investigated by analyzing soil samples collected from 4 108sampling sites and using domain method to identify the outliers and optimal Kriging interpolation.Meanwhile,the nutrient abundance index for wheat,corn and cotton was determined by the experimental datafrom 2007to 2008.Results indicated that the demand of crop growth for AN was nearly satisfied,exceptthat only 0.09%of cropland showed AN deficiency for the wheat and 0.86%of cropland,for corn and cotton.The content of AP was relatively low,especially in the middle of Xiaji Town,the east of GuandaoTown,the north of Xiaoyi Town,the northwest and southeast of Fengyuan Town and the west of YangguoTown.The demand of wheat and corn for AK was fulfilled but that of cotton was unsatisfied,especially inthe west and north of Yangguo Town.The mean ratio of AN to AP was 4:1,representing an imbalancestate.Therefore,it is necessary to increase the amounts of AN and AP through applying AP by specific yieldand applying AN by the applied AP.