21.Planting area and planting structure of crops in Qinghai Province (1952-2020)

       TPDC

    22.Investment in agricultural work relief in Qinghai Province (1998-2000)

       TPDC

    23.Agricultural modernization in Qinghai Province (1952-2003)

       TPDC

    24.Year end possession of agricultural machinery in Qinghai Province (1957-2020)

       TPDC

    25.Basic situation of rural grassroots organizations and agriculture in Qinghai Province (1978-2004)

       TPDC

    26.Rural power, water conservancy construction and material consumption in Qinghai Province (2000-2020)

       TPDC

    27.Agricultural mechanization and grassland construction in Main Years of Qinghai Province (1985-2020)

       TPDC

    28.Total index of agricultural product production price in Main Years of Qinghai Province (1952-2018)

       TPDC

    29.Total yield and variety composition of grain and oil crops in Main Years of Qinghai Province (1952-2000)

       TPDC