共 7 条
[1]
Bremner J.M., 1965, METHODS SOIL ANAL, P1149, DOI [10.2134/AGRONMONOGR9.2.C32, DOI 10.2134/AGRONMONOGR9.2.C32]
[2]
Jackson ML, 1958, SOIL CHEMICAL ANALYS
[3]
Loehr R. C., 1968, POLLUTION IMPLICATIO
[4]
SMITH GE, 1965, 55 MO U SPEC REPT, P42
[5]
STEWART B. A., 1967, ENVIRON SCI TECHNOL, V1, P736, DOI 10.1021/es60009a004
[6]
WADLEIGH CH, 1968, 1065 US DEPT AGR MIS
[7]
1965, STANDARD METHODS EXA