共 30 条
[21]
Olson R, 1965, AM SOC AGRON MONOGR, V9, P963
[22]
Schoen R, 1970, AM MINERAL, V55, P43
[24]
Schwertmann U., 1977, Minerals in Soil Environments (Dixon, J.B.
[25]
Weed, S.B., Editors)., P145
[27]
SCHWERTMANN U, 1979, 1978 P INT CLAY C OX, P491
[30]
1975, USDA HDB, V436