Long-term effects of different organic and inorganic fertilizer treatments on soil organic carbon sequestration and crop yields on the North China Plain

•We examine the long term effects of inorganic and organic fertilizers on SOC sequestration and crop yields.•The mixed application of inorganic fertilizers and crop residuals can strongly increase the SOC and crop yields.•Corn and winter wheat yields and the mineralization amount of SOC have significant correlation with SOC.