共 45 条
[1]
Anderson MS, 1929, J AGRIC RES, V38, P0565
[2]
BAVER LD, 1929, MISSOURI AGR EXP STA, V129
[3]
BAVER LD, 1928, J AM SOC AGRON, V20, P921
[4]
BJERRUM M, 1927, KOLLOID Z, V43, P5
[6]
BRADFIELD R, 1923, COLLOID S MONOG, V1, P369
[7]
BRADFIELD R, 1928, P 1 INT C SOIL SCI, V4, P858
[8]
BRADFIELD R, 1928, P 1 INT C SOIL SCI, V2, P264
[9]
BREAZEALE JF, 1926, ARIZ AGR EXP STA TEC, V13