To clarify the application situation of chemical fertilizer and pesticide in potato production
bases of Shanxi Province，this paper conducted sampling investigation and analysis on chemical fertilizer
and pesticide at 23 villages of major potato growing regions．The results indicated that in Shanxi Province，
pesticides used in potato production were mainly chemical pesticides，accounting for 97.26%．There
were 28 pesticide products（10 insecticides，14 fungicides and 4 herbicides）mainly used for controlling
potato early blight，late blight，Henosepilachna vigintioctopunctata and underground vermin．The
average pesticides use frequencies in commercial potato and seed potato bases were 2.28 and 4.67 times，
respectively．The average use amount of pesticides were 1.61 and 1.55 kg·hm^-2，respectively．Partial legally
prohibited pesticides were still applying，and pesticides with medium and high toxicity accounted for 17.9%．
Fertilizers used in potato production were mainly the compound ones，taking 54.55%．The average nitrogen
application amount in commercial potato and seed potato bases were 235.17 and 308.82 kg·hm^-2，the average
phosphate fertilizer applications were 129.28 and 105.81 kg·hm^-2，the average potassium fertilizer applications
were 144.83 and 214.31 kg·hm^-2，respectively．There were great differences in pesticide and fertilizer
application between various planting bases．The application times of pesticide in seed potato base were larger
than that in commercial potato base．As for the application of fertilizer，more nitrogen fertilizer was used，
neglecting the reasonable combined application of nitrogen，phosphorus and potassium．