Nutrient and Bacterial Transport in Runoff from Soil and Pond Ash Amended Feedlot Surfaces

Gilley, John E.; Vogel, Jason R.; Berry, Elaine D.; Eigenberg, Roger A.; Marx, David B.; Woodbury, Bryan L.

doi:10.13031/2013.29210

Cited by 12 publications

(6 citation statements)

References 28 publications

(19 reference statements)

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“…transport in runoff from land application areas to be 12.63 and 12.70 log CFU per 100 mL, respectively (table 1). These values are over one log scale less than measurements obtained by Gilley et al (2008aGilley et al ( , 2009.…”

mentioning

confidence: 57%

“…Mean transport rates of 10.6 log PFU ha -1 , 11.3 log CFU ha -1 , 12.3 log CFU ha -1 , and 11.2 log CFU ha -1 were measured in the present study for phages, total coliforms, E. coli, and enterococci, respectively, on the plots with no wheat strip. Gilley et al (2008aGilley et al ( , 2009) determined the mean transport of E. coli from feedlot surfaces to be 14.0 log CFU ha -1 . When the beef cattle manure was land-applied, the transport rate for E. coli was reduced to 12.6 log CFU ha -1 .…”

Section: Correlation Between Microbial Transport and Runoff Charactermentioning

confidence: 99%

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Wheat Strip Effects on Microbial Transport Following Variable Applications of Beef Cattle Manure

Durso¹,

Gilley²,

Marx³

et al. 2019

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Vegetative filter strips (VFS) consisting of perennial vegetation have been successfully used to reduce the transport of contaminants in runoff from land application areas. The effectiveness of a winter wheat strip, which may be more acceptable to producers, in reducing microbial transport was examined in this study. A 1.4 m wheat strip was used to allow direct comparison with experimental results obtained in previous studies. Beef cattle manure was applied to 0.75 m wide by 4.0 m long plots established on an Aksarben silty clay loam located in southeast Nebraska. Manure was added at rates required to meet the 0-1-, 2-, or 4-year phosphorus requirement for corn. The transport of selected microbes was measured for three 30 min simulated rainfall events separated by 24 h intervals. The narrow wheat strip did not significantly reduce counts of any of the measured microbes. The application of manure to meet the 4-year P requirement resulted in E. coli and enterococci loads that were significantly greater than the 1-year P requirement. Rainfall simulation run significantly affected measurements of phages, total coliforms, E. coli, and enterococci, with measurements during the three runs varying from 9.35 to 10.9 log plaque-forming units (PFU) ha -1 , from 11.5 to 12.1 log colony-forming units (CFU) ha -1 , from 12.1 to 12.5 log CFU ha -1 , and from 11.1 to 11.4 log CFU ha -1 , respectively. The transport of E. coli was found to be significantly correlated to selected nutrient loads and electrical conductivity of runoff. The presence of narrow wheat strips did not reduce microbial loads in runoff.

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mentioning

confidence: 57%

Section: Correlation Between Microbial Transport and Runoff Charactermentioning

confidence: 99%

Wheat Strip Effects on Microbial Transport Following Variable Applications of Beef Cattle Manure

Durso¹,

Gilley²,

Marx³

et al. 2019

Transactions of the ASABE

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“…The largest number of pathogens in runoff would be expected immediately after land application. Previous studies have been conducted to measure pathogen transport from feedlot surfaces (Gilley et al, 2008(Gilley et al, , 2009 and from land application sites immediately after manure addition (Durso et al, 2011;Thurston-Enriquez et al, 2005).…”

Section: Plot Preparationmentioning

confidence: 99%

Microbial Transport as Affected by Residue Cover and Manure Application Rate

Durso¹,

Gilley²,

Marx³

et al. 2019

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Abstract. Manure is applied to cropland areas with varying surface cover to meet single- or multiple-year crop nutrient requirements. The objectives of this field study were to (1) examine microbial transport following land application of manure to sites with and without wheat residue, (2) compare microbial loads following land application to meet the 0, 1, 2, 4, and 8-year P-based requirements for corn, and (3) evaluate the effects of rainfall simulation run on microbial transport. Manure was added and incorporated by disking plots that were 0.75 m wide by 2.0 m long. Three 30 min simulated rainfall events, separated by 24 h intervals, were then applied at an intensity of 70 mm h-1. Plots containing wheat residue had a total coliform load of 12.6 log CFU ha-1, which was significantly greater than the 12.4 log CFU ha-1 measured on the plots without wheat residue. The plots with and without wheat residue had transport rates of and enterococci that were not significantly different. The plots on which manure was added at rates varying from 5.4 to 42.8 Mg ha-1 had counts of total coliforms and enterococci that were not significantly different. Rainfall simulation run did not significantly affect measurements of phages, total coliforms, or enterococci. Transport of selected microbes was found to be significantly affected by residue cover, manure application rate, and rainfall simulation run. Keywords: Bacteria, Cattle manure, E. coli, Feedlots, Land application, Manure management, Manure runoff, Microbial, Microorganisms, Runoff.

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“…Clark et al (1975b) reported that the mean slope of selected feedlots in the southern Great Plains ranged from 1.3% near Pratt, Kansas, to 9.0% near Mead, Nebraska. Gilley et al (2009) conducted tests on a feedlot near Clay Center, Nebraska, that had a mean slope of 4.8%. The mean slope of the study site used in this investigation was 5.1%.…”

Section: Study Site Characteristicsmentioning

confidence: 99%

Nutrient Concentrations of Runoff as Affected by the Diameter of Unconsolidated Material from Feedlot Surfaces

Gilley

Boone²,

Marx³

2014

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Beef cattle feedlots contain unconsolidated material that accumulates on the feedlot surface during a feeding cycle. This study was conducted to measure the effects of varying diameters of unconsolidated surface material and varying flow rates on nutrient concentrations in runoff. Unconsolidated surface material with an average diameter of 4.76, 9.53, 19.1, or 47.5 mm and a composite sample with a 15.2 mm mean diameter were placed within 0.75 m wide × 4.0 m long plot areas. Flow was then introduced at the top of the plots in successive increments, and runoff samples for water quality analyses were obtained. Particle diameter significantly influenced runoff concentrations of dissolved phosphorus (DP), particulate phosphorus (PP), total phosphorus (TP), NH 4-N, and solids transport.

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Nutrient and Bacterial Transport in Runoff from Soil and Pond Ash Amended Feedlot Surfaces

Abstract: ABSTRACT. The addition of pond ash (fly ash that has been placed in evaporative ponds

Cited by 12 publications

References 28 publications

Wheat Strip Effects on Microbial Transport Following Variable Applications of Beef Cattle Manure

Wheat Strip Effects on Microbial Transport Following Variable Applications of Beef Cattle Manure

Microbial Transport as Affected by Residue Cover and Manure Application Rate

Nutrient Concentrations of Runoff as Affected by the Diameter of Unconsolidated Material from Feedlot Surfaces

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