共 23 条
[1]
A NEW HAND-HELD RECORDING PENETROMETER FOR SOIL STUDIES
[J].
JOURNAL OF SOIL SCIENCE,
1980, 31 (02)
:279-&
[2]
Bekker M.G., 1969, INTRO TERRAIN VEHICL
[4]
Collis-George N., 1978, Modification of Soil Structure (Emerson, W.W.
[5]
Bond, R.D.
[6]
Dexter, A.R. - editors)., P111
[7]
BASIS FOR A PROCEDURE TO SPECIFY SOIL PHYSICAL-PROPERTIES OF A SEED BED FOR WHEAT
[J].
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH,
1979, 30 (05)
:831-846
[9]
FOUNTAINE E. R., 1959, Journal of Agricultural Engineering Research, V4, P53
[10]
FOUNTAINE ER, 1956, 6TH P INT C SOIL SCI, P495