共 3 条
[1]
Allison LE., 1965, METHODS SOIL ANAL 2, DOI [10.2134/agronmonogr9.2.c40, 10.2134/agronmonogr9.2.c39, DOI 10.2134/AGRONMONOGR9.2.C40]
[3]
McKEAGUE J. A., 1963, CANADIAN JOUR SOIL SCI, V43, P70