Abstract
Soil compaction is becoming an increasing concern because of the increasing weight of farm equipment, and the use of heavy earth moving equipment to reclaim mined areas for agricultural purposes. If axle loads are less than 4.5 Mg (5 tons), compaction will probably not extend deeper than 30 cm (12 inches). This compaction can both increase and decrease crop yield depending on soil texture and growing season precipitation. Axle loads in excess of 9 Mg (10 tons) can cause compaction to a depth of 60 cm (24 inches) and result in significant yield decreases. Freezing and thawing, or mechanical soil loosening, may not be very effective in ameliorating deep compaction. Thus, crop yield reductions from a one-time application of heavy axle load traffic may have significant and long lasting effect on crop yield. Crop yield reductions due to soil compaction are most likely to occur on slowly drained high-clay soils.
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Claims 6
Claim · model-written summary
Compaction from light axle loads can both increase and decrease crop yield, depending on soil texture and growing season precipitation.
Verbatim
t1“The Effect of Soil Compaction on Crop Yield”
e1“This compaction can both increase and decrease crop yield depending on soil texture and growing season precipitation”
Claim · model-written summary
Axle loads above 9 Mg (10 tons) cause compaction to 60 cm depth and significant yield decreases.
Verbatim
t1“The Effect of Soil Compaction on Crop Yield”
e2“Axle loads in excess of 9 Mg (10 tons) can cause compaction to a depth of 60 cm (24 inches) and result in significant yield decreases”
Claim · model-written summary
Crop yield reductions due to soil compaction are most likely on slowly drained high-clay soils.
Verbatim
t1“The Effect of Soil Compaction on Crop Yield”
e3“Crop yield reductions due to soil compaction are most likely to occur on slowly drained high-clay soils”
Claim · model-written summary
Light axle loads (below 4.5 Mg) will probably not extend compaction deeper than 30 cm.
- Treatment
- axle loads are less than 4.5 Mg (5 tons)e4
- Outcome
- compactione4
- Direction
- not extend deeper than 30 cm (12 inches)e4
Not reportedTaxon
Verbatim
e4“If axle loads are less than 4.5 Mg (5 tons), compaction will probably not extend deeper than 30 cm (12 inches)”
Claim · model-written summary
Freezing and thawing or mechanical soil loosening may not be very effective in ameliorating deep compaction.
- Treatment
- Freezing and thawing, or mechanical soil looseninge5
- Outcome
- ameliorating deep compactione5
- Direction
- not be very effectivee5
Not reportedTaxon
Verbatim
e5“Freezing and thawing, or mechanical soil loosening, may not be very effective in ameliorating deep compaction”
Claim · model-written summary
Crop yield reductions from a one-time heavy axle load traffic may have a significant and long-lasting effect on crop yield.
Verbatim
t1“The Effect of Soil Compaction on Crop Yield”
e6“Thus, crop yield reductions from a one-time application of heavy axle load traffic may have significant and long lasting effect on crop yield”