共 16 条
[1]
ANDERSSON A, 1972, Ambio, V1, P176
[2]
Bowen H.J.M., 1966, TRACE ELEMENTS BIOCH
[3]
COTTENIC A, 1971, SOIL B, P343
[4]
KICK H., 1972, Landwirtschaftliche Forschung (Sonderheft), V27, P207
[5]
KICK H, 1971, 1 P INT S SOIL FERT
[6]
LAMM CG, 1971, DANSKE JORDARKIV
[7]
MEETHAM AR, 1964, ATMOSPHERIC POLLUTIO
[8]
ODEN S, 1970, GRUNDFORBATTRING, V23, P55
[9]
PATTERSON JBE, 1970, 21 TRAC EL SOILS CRO, P193
[10]
PAULY H, 1971, 2 KEM TEK C COP