共 115 条
[6]
Cumulative compaction of a clay loam soil by annually repeated field traffic in autumn
[J].
AGRICULTURAL SCIENCE IN FINLAND,
1995, 4 (5-6)
:445-461
[7]
ALAKUKKU L, 1999, INT C SUBS COMP C AL, P13
[9]
[Anonymous], 1953, GRUNDL LANDTECH