共 5 条
[2]
BLAKE GR, 1965, METHODS SOIL ANAL, V1, P374
[3]
BULK DENSITY MEASUREMENTS ON CERTAIN SOILS HIGH IN COARSE FRAGMENTS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1968, 32 (01)
:109-+
[5]
VOMOCIL J. A., 1957, Advanc. Agron., V9, P159, DOI 10.1016/S0065-2113(08)60112-1