Nutrient losses from manure and fertilizer applications as impacted by time to first runoff event

Smith, D.R. and Owens, P.R. and Leytem, A.B. and Warnemuende, E.A. (2007) Nutrient losses from manure and fertilizer applications as impacted by time to first runoff event. Environmental Pollution. 147:131-137.

PDF 1223.pdf Download (423kB)

Abstract

Nutrient losses to surface waters following fertilization contribute to eutrophication. This study was conducted to compare the impacts of
fertilization with inorganic fertilizer, swine (Sus scrofa domesticus) manure or poultry (Gallus domesticus) litter on runoff water quality, and
how the duration between application and the first runoff event affects resulting water quality. Fertilizers were applied at 35 kg P ha-1-, and
the duration between application and the first runoff event varied between 1 and 29 days. Swine manure was the greatest risk to water quality
1 day after fertilization due to elevated phosphorus (8.4 mg P L -1) and ammonium (10.3 mg NH4-N L-1) concentrations; however, this risk
decreased rapidly. Phosphorus concentrations were 2.6 mg L -1 29 days after fertilization with inorganic fertilizer. This research demonstrates
that manures might be more environmentally sustainable than inorganic fertilizers, provided runoff events do not occur soon after application.

Item Type:	Article
NWISRL Publication Number:	1223
Subjects:	Irrigation > Furrow irrigation > Runoff losses > Nutrients Manure > Chemistry Soil > Amendments > Fertilizer Mass Import - autoclassified (may be erroneous)
Depositing User:	Users 5 not found.
Date Deposited:	20 Nov 2010 21:49
Last Modified:	31 Oct 2016 17:15
Item ID:	61
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/61