Campus Units
Agricultural and Biosystems Engineering
Document Type
Conference Proceeding
Conference
2nd International Symposium on Preferential Flow Water: Movement and Chemical Transport in the Environment
Publication Version
Published Version
Publication Date
1-3-2001
Journal or Book Title
Proceedings of the 2nd International Symposium on Preferential Flow Water: Movement and Chemical Transport in the Environment
First Page
165
Last Page
168
DOI
10.13031/2013.2109
Conference Title
2nd International Symposium on Preferential Flow Water: Movement and Chemical Transport in the Environment
Conference Date
January 3-5, 2001
City
Honolulu, HI
Abstract
Tillage practices can affect the formation and persistence of preferential flow paths and their role in transporting portion of the surface applied chemicals to groundwater. Field experiments were conducted to quantify tillage (chisel, moldboard, ridge and no-till) effects on subsurface drain flow and losses of nitrate-nitrogen (NO3-N), atrazine, and alachlor to shallow groundwater. Rapid increase in subsurface drain flow rates following heavy rains indicate the preferential movements of rain water to subsurface tile drains. The sudden decreases in NO3-N concentrations and increase in the concentrations of atrazine, and alachlor in subsurface drain water, particularly under no-till and ridge till systems, supports the role of preferential flow paths to carry contaminants to shallow water table depth and its overall effects on groundwater quality.
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2001
Language
en
File Format
application/pdf
Recommended Citation
Kanwar, Ramesh S. and Bakhsh, Allah, "Preferential Flow and its Effects on Nitrate and Herbicide Leaching to Groundwater under Various Tillage Systems" (2001). Agricultural and Biosystems Engineering Conference Proceedings and Presentations. 610.
https://lib.dr.iastate.edu/abe_eng_conf/610
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Water Resource Management Commons
Comments
This proceeding is published as Kanwar, Ramesh S., and Allah Bakhsh. "Preferential flow and its effects on nitrate and herbicide leaching to groundwater under various tillage systems." In Proceedings of the 2nd International Symposium on Preferential Flow Water: Movement and Chemical Transport in the Environment, ASAE Publication Number 701P0006 (David Bosch and Kevin King, eds.). (2001): 165-168. DOI: 10.13031/2013.2109. Posted with permission.