Rainfall simulations to evaluate pathogen and nutrients runoff loss under controlled conditions

dc.contributor.author Delgado, María
dc.contributor.author Kanwar, Rameshwar
dc.contributor.author Pederson, Carl
dc.contributor.author Hoang, Chi
dc.contributor.author Nguyen, Huy
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2021-06-14T19:39:03.000
dc.date.accessioned 2021-08-14T00:16:48Z
dc.date.available 2021-08-14T00:16:48Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.issued 2018-05-01
dc.description.abstract <p>Soil fertilizing the old-fashioned way, with raw manure, is a well-known procedure to increase land productivity. However, the fertilization value of organic amendment to the soil depends among others, on the composition of manure and manure application rates, timing and placement. When a rainfall event occurs soon after organic fertilizer application, it might help increase nutrient and pathogen concentrations in superficial runoff, carrying out negative consequences on water quality. The aim of this research was to study the effect of variable rates of poultry manure application and landscape slope on bacterial pathogens, nutrients and sediment transport with surface runoff. Experimental assays were performed with an indoor rainfall simulator; a constant 25 mm. h-1 intensity was applied for 2.5 hours. We evaluated interactions between slopes (2%, 4% and 9%) and application rates of poultry manure. Trial conditions tested tend to reproduce the typical farming practices applied in the central area of Iowa State, which is part of the productive area known as the Corn Belt (USA). Nutrient present in surface runoff showed a positive correlation with manure application rates. Also, when manure application rate was doubled, E. coli FCU increased correspondingly. This study emphasized the need for proper manure management (rate and timings of application) in order to optimize fertilization efficiency and to avoid negative impacts on downstream water quality of productive areas and on the ecological systems surrounding them.</p>
dc.description.comments <p>This article is published as Delgado, María Isabel, Ramesh Kanwar, Carl Pederson, Chi Hoang, and Huy Nguyen. "Rainfall simulations to evaluate pathogen and nutrients runoff loss under controlled conditions." <em>Pollution Research</em> 37 (2018): 145-151. http://hdl.handle.net/11336/101360. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/1218/
dc.identifier.articleid 2503
dc.identifier.contextkey 23347992
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/1218
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/9z0K3Eer
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/1218/2018_KanwarRamesh_RainfallSimulations.pdf|||Fri Jan 14 19:14:41 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Water Resource Management
dc.subject.keywords Rainfall simulator
dc.subject.keywords Runoff
dc.subject.keywords Pathogens
dc.subject.keywords Total suspended solids
dc.subject.keywords Poultry manure
dc.title Rainfall simulations to evaluate pathogen and nutrients runoff loss under controlled conditions
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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