AEN 513 Soil Dynamics in Tillage and Traction
AEN 513 Soil Dynamics in Tillage and Traction
AEN 513 Soil Dynamics in Tillage and Traction
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OVERVIEW OF TILLAGE TOOLS<br />
<strong>Tillage</strong> is the mechanical manipulation of soil to<br />
achieve an improved environment for seed<br />
germ<strong>in</strong>ation, root propagation, water<br />
transmission <strong>and</strong> storage as well as facilitat<strong>in</strong>g<br />
the control weeds.<br />
REASONS FOR TILLAGE<br />
• Break soil <strong>in</strong>to small particles to enhance soil-seed contact<br />
• Control weed growth<br />
• Increase soil porosity <strong>and</strong> reduce its strength to facilitate<br />
penetration by crop roots plus movement <strong>and</strong> storage of water<br />
• Break<strong>in</strong>g up surface crust<strong>in</strong>g or seal<strong>in</strong>g to <strong>in</strong>crease water<br />
<strong>in</strong>filtration<br />
• Increase porosity for improved aeration<br />
• Improve dra<strong>in</strong>age from root<strong>in</strong>g zone<br />
• Incorporate residue of surface vegetation <strong>in</strong>to the root<strong>in</strong>g zone<br />
• Form soil for enhanced crop growth<br />
• Mix soil horizons near the surface<br />
• Loosen soil <strong>and</strong> disturb roots to facilitate harvest<strong>in</strong>g of crops<br />
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