Agricultural and Biosystems Engineering Publications
Document Type
Article
Publication Date
2013
Journal or Book Title
Transactions of the ASABE
Volume
56
Issue
1
First Page
91
Last Page
101
Abstract
A long-term study (1998 to 2009) was initiated on eleven tile-drained field plots, ranging in size from 0.19 to 0.47 ha, to investigate the effects of poultry manure application on subsurface drainage water quality in Iowa under a corn-soybean rotation system. The experimental treatments included poultry manure at rates of 168 kg N ha-1 (PM) and 336 kg N ha-1 (PM2), each with three replications; nitrogen application from chemical fertilizer, urea ammonium nitrate (UAN), at a rate of 168 kg N ha-1 with four replications; and a control treatment that received 0 kg N ha-1. Subsurface drainage (tile) flow volume was monitored, and drainage samples were collected and analyzed for nitrate-nitrogen (NO3-N). The results from this 12-year study show that NO3-N losses with tile drainage were more likely to occur during the early stages of crop production (April to June) and were more related to the monthly distribution of precipitation than the total rainfall amount. The overall results of this study indicate that applying poultry manure at 168 kg N ha-1 resulted in significantly lower flow-weighted nitrate concentrations (PM < UAN < PM2) and the lowest nitrogen losses to subsurface drain water compared to UAN and PM2 application(PM < UAN < PM2), as well as higher crop yields compared to UAN application. Therefore, it can be concluded that poultry manure application at a rate of 168 kg N ha-1 is an environmentally sound N application practice with good yield potential for corn and soybean production systems with poorly drained soils in the upper Midwest. Future work is recommended to identify new practices and technologies to reduce nitrate loss to water systems.
Access
Open
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2013
Language
en
File Format
application/pdf
Recommended Citation
Nguyen, Huy Q.; Kanwar, Rameshwar S.; Hoover, Natasha L.; Dixon, Philip M.; Hobbs, Jonathan M.; and Soupir, Michelle L., "Long-Term Effects of Poultry Manure Application on Nitrate Leaching in Tile Drain Water" (2013). Agricultural and Biosystems Engineering Publications. 376.
https://lib.dr.iastate.edu/abe_eng_pubs/376
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Statistics and Probability Commons
Comments
This article is from Transactions of the ASABE 56, no. 1 (2013): 91–101.