共 7 条
[1]
BIRCH H. F., 1960, Plant and Soil, V12, P81, DOI 10.1007/BF01377763
[2]
BREMNER J. M., 1955, J. agric. Set., V46, P320
[3]
CORNFIELD A. H., 1964, Plant and Soil, V20, P260, DOI 10.1007/BF01376455
[4]
CORNFIELD A. H., 1961, Plant and Soil, V14, P90, DOI 10.1007/BF01343772
[6]
HARPSTEAD MI, 1958, P SOIL SCI SOC AM, V22, P326