Discrete element method (DEM) and soil bin evaluation of farmyard manure and tire traffic on the soil compaction
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View abstract on PubMed
Summary
This summary is machine-generated.Farmyard manure application loosens soil, reducing compaction. Discrete Element Method (DEM) simulations accurately model soil compaction from tire traffic, aiding agricultural practice optimization.
Area Of Science
- Agricultural Engineering
- Soil Science
- Computational Mechanics
Background
- Soil compaction is a major concern in agriculture, affecting soil health and crop yields.
- Tire traffic and organic matter content significantly influence soil physical properties.
Purpose Of The Study
- To investigate the impact of farmyard manure and tire traffic on soil compaction.
- To validate the Discrete Element Method (DEM) for modeling soil-tire interactions and compaction.
Main Methods
- Controlled soil bin tests using a single-wheel tester with an agricultural tractor tire.
- Discrete Element Method (DEM) simulations calibrated with laboratory experiments (uniaxial compression, repose angle).
- Analysis of soil density variations at different depths and organic matter content.
Main Results
- DEM simulations showed a high correlation (R²=0.9924) with experimental data.
- Increasing soil depth decreased bulk density; manure application significantly reduced bulk density.
- Tire passes increased soil density, particularly within the first 3 passes at shallow depths.
Conclusions
- DEM is a reliable tool for studying soil compaction and soil-tire interactions.
- Farmyard manure application can mitigate soil compaction.
- Optimizing agricultural practices using DEM can minimize negative impacts on soil structure.
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