共 10 条
[1]
Day P., 1965, METHODS SOIL ANAL, P545
[2]
Day P.R., 1956, SOIL SCI SOC AM J, V20, P167, DOI DOI 10.2136/SSSAJ1956.03615995002000020007X
[3]
DISPERSION OF SOIL PARTICLES BY SONIC VIBRATION
[J].
JOURNAL OF SOIL SCIENCE,
1967, 18 (01)
:47-&
[7]
Jackson ML, 1956, SOIL CHEM ANAL ADV C
[8]
TOWARDS AN ABSOLUTE MEASUREMENT OF SOIL STRUCTURAL STABILITY USING ULTRASOUND
[J].
JOURNAL OF SOIL SCIENCE,
1976, 27 (04)
:451-459
[9]
STUDIES OF SOIL ORGANOMINERAL FRACTIONS .2. EXTRACTION AND CHARACTERIZATION OF ORGANIC NITROGEN-COMPOUNDS
[J].
JOURNAL OF SOIL SCIENCE,
1974, 25 (01)
:9-15
[10]
WATSON JR, 1970, THESIS U ABERDEEN