共 21 条
[1]
ALLISON LE, 1965, METHODS SOIL ANALYSI, V9, P1346
[2]
Blake G, 1965, METHOD SOIL ANAL 1, V9, P374
[3]
Dalrymple J.B., 1968, Z GEOMORPHOL, V12, P60
[4]
DAN J, 1964, 8TH T INT C SOIL SCI, P751
[5]
Day PR., 1965, METHODS SOIL ANAL 1, Vagronomymonogra, P545
[6]
DINIZ AC, 1972, I INVESTIGACAO AGONO
[7]
Evans D.D., 1965, CHEM MICROBIOLOGICAL, V2, P1379
[8]
Guidilin I. S, 1973, LANDSCAPE INDICATORS, P92
[10]
KLAUSING RL, 1968, 47 N DAK ND GEOL SUR