共 11 条
[2]
Chaney R.L., 1976, SOILS MANAGEMENT ORG, P234
[3]
COX F R, 1972, P289
[5]
CHANGES IN DTPA-EXTRACTABLE ZINC, IRON, MANGANESE, AND COPPER IN SOILS FOLLOWING FERTILIZATION
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1971, 35 (04)
:600-+
[6]
STUDIES ON SOIL COPPER .1. FRACTIONATION OF COPPER IN SOILS
[J].
JOURNAL OF SOIL SCIENCE,
1973, 24 (02)
:172-181
[8]
STEEL R. G. D., 1960, PRINCIPLES PROCEDURE
[9]
STEVENSON F J, 1972, P79
[10]
STOVER RC, 1976, J WATER POLLUT CON F, V48, P2165