Abstract: By on potato formula fertilizer 30[5-25（18-7-0）]%,25（15-5-5）%,25（15-10-0）% for field test comparison,on fertilizer input,and crop yield,and statistics,and fertilizer utilization,index for integrated analysis,objective evaluation the formula fertilizer benefit,maximum to reduced large area application risk,for measuring soil formula fertilization technology parameter of correction and the further optimization fertilizer formula provides science pursuant to.