Table 4. Traffic effects averaged across several alfalfa varieties at Fargo,
 
ND in 2008.
Harvest dates
Traffic†
2005:
6-18
7-18
8-20
10-20
 
treatment
2006:
6-18
7-18
8-20
11-4
Total
--------------- tons dry matter/acre ---------------
 
FA-05, 2005 seeding, 12 varieties
No traffic
2.94
2.10
1.67
1.48
8.17
Traffic
2.87
2.07
1.69
1.33
7.96
  LSD
NS
NS
NS
NS
*
FA-06, 2006 seeding, 8 varieties
No traffic
2.77
1.97
1.55
1.36
7.65
Traffic
2.72
1.94
1.36
1.27
7.29
  LSD
NS
*
10%
NS
10%
†Traffic treatment was one pass with a medium-size tractor 5 days after harvest