共 41 条
[1]
Bear FE, 1965, SOILS RELATION CROP
[2]
Bowen H.J.M., 1966, TRACE ELEMENTS BIOCH
[3]
BROADBENT F. E., 1957, SOIL SCI, V83, P419, DOI 10.1097/00010694-195706000-00001
[5]
CANNON HL, 1964, 1176 US GEOL SURV B
[6]
CHAPMAN H.E., 1966, DIAGNOSTIC CRITERIA
[7]
CHATTOPADHYAY A, 1974, TRACE SUBSTANCES ENV, P31
[10]
GARTEL W, 1957, UNTERSUCKUNGEN KUPFE, P221