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Using Lysimeters and Tile Drained Field Plots to Study the Leaching of Field Applied Poultry Manure and UAN into Tile Water

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  022144,  2002 ASAE Annual Meeting . (doi: 10.13031/2013.9631) @2002
Authors:   Melissa Cheatham, Ramesh Kanwar, Jeff Lorimor, Hongwei Xin, Carl Pederson
Keywords:   lysimeter, tile drains, E. coli, total coliform, nitrate, orthophosphate, total phosphate, poultry manure, urea ammonium nitrate (UAN)

Six lysimeters and eleven tile drained field plots were used to determine if the amount of contaminants leaching into tile water would increase after the application of poultry manure and urea ammonium nitrate fertilizer (UAN). There were three nitrogen based treatments applied to the lysimeters and fields: 168 kg N/ha of UAN, 168 kg N/ha of poultry manure, and 336 kg N/ha of poultry manure. (One treatment per lysimeter/field plot.) Corn was planted in the lysimeters and field plots, as well as soybeans in the field plots, in order to simulate field conditions. Tile water samples were collected once a week and after rain events and tested for nitrate, total phosphate, orthophosphate, E. coli, and total coliform. Results thus far indicate that larger amounts of manure/fertilizer applied to lysimeters/field plots appear to predispose the lysimeters and field plot soils to greater contaminate leaching potential. E. coli, total coliform, and total phosphate leaching increased when heavy rain events occurred, while nitrate and orthophosphate leaching decreased.

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