Research Website
http://www.ars.usda.gov/main/site_main.htm?modecode=50-20-10-00
Keywords
Soil erodibility, interrill erosion, rill erosion, no-till, conventional tillage
Presentation Type
Event
Research Abstract
Conservation tillage practices, such as no-till agriculture, have the potential of reducing the erodibility of a soil compared to conventional agricultural practices. This research sought to determine whether long-term agricultural practices affect the baseline erodibility properties of a soil. Two soils from Throckmorton-Purdue Agricultural Center in Tippecanoe County, Indiana were used during this experiment. One soil was treated with a long-term conventional tillage (fall chisel, spring disk) system and the other soil was treated with a long-term no-till system. The soils’ interrill erodibility, and rill erodibility and critical hydraulic shear stress were measured under a rainfall simulator using soil boxes without crop residue, and in miniature-flumes respectively. The soil treated with a long-term conventional tillage (fall chisel, spring disk) system had a greater baseline interrill erodibility compared to the soil treated with a long-term no-till system. These results will be used as a basis for further studies assessing the baseline erodibility properties of soils from other agricultural practices.
Session Track
Food, Soil, Plant and Animal Science
Recommended Citation
Julianne R. Chechanover and Dennis C. Flanagan,
"Long-term Tillage System Impacts on Soil Erodibility"
(August 6, 2015).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 29.
https://docs.lib.purdue.edu/surf/2015/presentations/29
Long-term Tillage System Impacts on Soil Erodibility
Conservation tillage practices, such as no-till agriculture, have the potential of reducing the erodibility of a soil compared to conventional agricultural practices. This research sought to determine whether long-term agricultural practices affect the baseline erodibility properties of a soil. Two soils from Throckmorton-Purdue Agricultural Center in Tippecanoe County, Indiana were used during this experiment. One soil was treated with a long-term conventional tillage (fall chisel, spring disk) system and the other soil was treated with a long-term no-till system. The soils’ interrill erodibility, and rill erodibility and critical hydraulic shear stress were measured under a rainfall simulator using soil boxes without crop residue, and in miniature-flumes respectively. The soil treated with a long-term conventional tillage (fall chisel, spring disk) system had a greater baseline interrill erodibility compared to the soil treated with a long-term no-till system. These results will be used as a basis for further studies assessing the baseline erodibility properties of soils from other agricultural practices.
https://docs.lib.purdue.edu/surf/2015/presentations/29