共 15 条
[2]
CHAPMAN HD, 1967, SOIL TESTING PLANT A
[5]
HALSWORTH EG, 1972, USE ISOTOPES STUDY F, P149
[6]
JACKSON ML, 1962, SOIL CHEM ANALYSES, P370
[8]
Jones J. B., 1967, SOIL TESTING PLANT 2, P49
[10]
PEEVE E, 1944, SOIL SCI, V57, P1