Precision Agriculture · 2026
Characterization and impact of agricultural machinery traffic on alfalfa forage harvested
Bizzuti, B. E., Williams, P. J., Kohmann, M. M., Arriaga, F. J., Drewry, J. L., Hancock, D., Luck, B. D.
Export
Characterization and impact of agricultural machinery traffi…
Abstract
No abstract in the library.
Findings
What changed what, as the paper reports it. Grouped by the measured property.
annual forage harvested
↓ 5= 16
- no effect
Traffic, all treatments combined vs. No Trafficnot significant · Year1(2019) andYear2(2020) · University of Wisconsin Arlington Agricultural Research Station · Experiment2,no-till; author-reported orthogonalcontrast absence for traffic treatments, not an invented omnibuspair. Textp=.613 is not assigned because no specific contrast/year identified. No per-group means printed.
Source · p. 9 “Orthogonal contrasts indicated no effects of AMT treatments on annual FH under no-till in Year 1 and Year 2”
- decrease
HAY, pooled3and5pass vs. SILAGE, pooled3and5passp = 0.048 · Year3(2021) · University of Wisconsin Arlington Agricultural Research Station · Experiment2,no-till; pooledHAY versuspooledSILAGE,3/5pass variants combined. Separategroup±SEasprinted, poolednunstated.
Numbers
- treatment 12.4 vs. control 13.3 Mg DM ha-1 (-6.767 %)
- percent_change 7
Source · p. 10 “lower ( p = 0.048) under HAY operation compared to SILAGE, showing a 7% reduction (12.4 ± 0.35 vs. 13.3 ± 0.27 Mg DM ha⁻¹).”
- decrease
Traffic, all treatments combined vs. No Trafficp = 0.065 · Year1(2019),establishmentyear · University of Wisconsin Arlington Agricultural Research Station · Experiment3,moderate tillage; explicitpooledTraffic versusNoTrafficcontrast;10%decisionthreshold,p=.065. Table6singleSEM2.15 is not a separatelystatedSEforeachgroup.
Numbers
- treatment 7.5 vs. control 8.7 Mg DM ha-1 (-13.79 %)
- percent_change 14
Source · p. 10 “In Year 1, annual FH was significantly lower in the traffic treatments compared to No Traffic ( p = 0.065), representing a 14% reduction in production (Table 6).”
- decrease
HAY, pooled3and5pass vs. No Trafficsignificant · Year1(2019),establishmentyear · University of Wisconsin Arlington Agricultural Research Station · Experiment3,moderate tillage; pooledHAY versusNoTraffic; actualTable6*alpha.10. SingleSEM1.18 not transferredtoeachgroup; discussion24%vsNoTraffic not used (24%belongsHAYversusSILAGE).
Numbers
- treatment 6.5 vs. control 8.7 Mg DM ha-1 (-25.29 %)
Source · p. 12 “| Arlington, WI. Seeding year | No traffic vs. HAY | | 8.7–6.5* | 1.18 |”
Source · p. 12 “* indicates statistical difference of orthogonal contrast at p \< 0.10.”
- decrease
HAY, pooled3and5pass vs. SILAGE, pooled3and5passp = 0.003 · Year1(2019),establishmentyear · University of Wisconsin Arlington Agricultural Research Station · Experiment3,moderate tillage; pooledHAY versuspooledSILAGE. SinglecontrastSEM.96 notcopiedtoeachgroup. Exactp=.003,distinctfromyear2.06andNTyear3.048.
Numbers
- treatment 6.5 vs. control 8.5 Mg DM ha-1 (-23.53 %)
- percent_change 24
Source · p. 10 “HAY had a 24% reduction in annual FH compared to SILAGE ( p = 0.003).”
- decrease
HAY, pooled3and5pass vs. SILAGE, pooled3and5passp = 0.06 · Year2(2020) · University of Wisconsin Arlington Agricultural Research Station · Experiment3,moderate tillage; pooledHAY versuspooledSILAGE;10%decisionthreshold,p=.06. Separateprinted±SEpreserved,poolednunstated.
Numbers
- treatment 27.8 vs. control 32.2 Mg DM ha-1 (-13.66 %)
Source · p. 10 “In Year 2, annual FH was also greater in SILAGE vs. HAY ( p = 0.06; 32.2 ± 1.28 vs. 27.8 ± 2.98 Mg DM ha-1)”
Set-up
Treatments
- agricultural machinery trafficField traffic
- Traffic, all treatments combinedField trafficNo TrafficNo field trafficSILAGE, pooled3and5passField trafficHAY, pooled3and5passField traffic
- soil preparation systemsTillage system
- no-till, Experiment2Zero tillagemoderate tillage, Experiment3Shallow tillage
Measured
- annual forage harvestedYield
- Unit
- Mg DM ha-1
- Method
- Flailplot harvester;freshweight;four subsamplesperplot dried55°C at least72h;drymatter harvest biomass summedover3cuts2019,4cuts2020/2021
Sites
University of Wisconsin Arlington Agricultural Research Station
- Location
- Arlington, Wisconsin, USA43.30° N, 89.35° W
- Soil
- Argiudolls (Typic, fine-silty, mixed, superactive, mesic) · USDA
- Land use
- alfalfa plantedArable land
- Management on the whole site
- Alfalfa variety AmeriStand 457TQAlfalfa/Lucerne/Medicago sativa
| Depth | Texture | Clay | pH | Organic C | Bulk density |
|---|---|---|---|---|---|
| 0–15 cm | silt loam | – | 6.6 pH | – | – |
commercial operation in Dane County
- Location
- Dane County, South Central Wisconsin, USA
- Climate
- 7.8 °C mean annual temperature1,178 mm annual precipitation
- Soil
- Argiudoll (Typic, fine-silty, mixed, superactive, mesic) · USDA
- Land use
- alfalfa harvested as silageArable land
| Depth | Texture | Clay | pH | Organic C | Bulk density |
|---|---|---|---|---|---|
| site soil (depth unstated) | silt loam | – | – | – | – |
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