Removal of Cattle Manure Constituents in Runoff from No-Till Cropland as Affected by Setback Distance

doi:10.13031/trans.59.11764

Cited by 2 publications

(8 citation statements)

References 23 publications

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“…An experiment to determine the effects of setback distance and runoff rate on the concentration of selected constituents following land application of beef cattle manure to a no-till cropland area was conducted by Gilley et al (2016). At the 0 m downslope distance, potassium concentration of runoff decreased from 99.8 to 51.5 mg L -1 as flow rate increased from 25.6 to 87.6 L min -1 .…”

Section: Concentration Measurements As Affected By Inflowmentioning

confidence: 99%

“…The effects of setback distance on concentrations of selected constituents following land application of beef cattle manure to a no-till cropland site in southeast Nebraska was examined in a field study conducted by Gilley et al (2016). A first-order exponential decay function was used to estimate the effects of setback distance on concentration values for plot lengths varying from 4.9 to 23.2 m. A setback distance of 12.2 m effectively reduced the concentrations of dissolved phosphorus (DP), total phosphorus (TP), NH 4 -N, boron, calcium, magnesium, potassium, and sulfate to back-ground values similar to those measured on the no-manure treatment.…”

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confidence: 99%

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Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Gilley¹,

Bartelt–Hunt²,

Eskridge³

et al. 2017

Transactions of the ASABE

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Abstract. The use of setback distances for manure application on cropland areas adjacent to surface water bodies could serve a function similar to vegetative filter strips. However, little information currently exists to identify the setback distances necessary to effectively reduce the transport of contaminants in runoff. The objective of this study was to determine the effects of setback distance and runoff rate on concentrations of selected constituents in runoff following land application of swine slurry to a no-till cropland area in southeast Nebraska. The study site had a residue cover of 7.73 Mg ha-1 and a slope gradient of 4.9%. The twenty plots examined during the investigation were 3.7 m across the slope by 4.9, 7.9, 11.0, 17.1, or 23.2 m long. An initial set of rainfall simulation tests were completed to identify background concentrations of selected constituents. Swine slurry was then applied to the upper 4.9 m of each plot, and additional rainfall simulation tests were conducted on the same plots examined previously. A first-order exponential decay function was used to estimate the effects of setback distance on concentrations of selected constituents. A setback distance of 12.2 m reduced runoff concentrations of dissolved phosphorus (DP), NH4-N, total nitrogen (TN), boron, chloride, manganese, potassium, sulfate, zinc, electrical conductivity (EC), and pH to background values similar to those measured for the no-slurry condition. Runoff rate significantly influenced transport of several of the constituents, with concentrations generally decreasing as runoff rate increased. The transport of selected pollutants in runoff was significantly reduced when setback areas were employed. Keywords: Filter strips, Land application, Manure management, Manure runoff, Nitrogen, Nutrients, Phosphorus, Runoff, Swine slurry, Water quality.

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Section: Concentration Measurements As Affected By Inflowmentioning

confidence: 99%

mentioning

confidence: 99%

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Gilley¹,

Bartelt–Hunt²,

Eskridge³

et al. 2017

Transactions of the ASABE

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“…Interpretation of our microbial results is informed by nutrient setback distance work. Significant differences were observed between setback distances for nutrient removal by Gilley et al (2016), who used the same setback distances and the same agronomic fields as this current study. One of the primary mechanisms identified for the removal of nutrients via setbacks or vegetative buffer strips is that the vegetation slows overland flow, allowing particulate matter and associated nutrients to settle before reach-ing surface waters (Dabney, Meyer, Harmon, Alonso, & Foster, 1995;.…”

Section: Fecal Indicatorsmentioning

confidence: 71%

“…Setbacks and vegetative buffer strips are effective at reducing transport of some manure-associated nutrients and sediment into surface waters (Bingham, Westerman, & Overcash, 1980;Dillaha, Reneau, Mostaghimi, & Lee, 1989;Gilley et al, 2016;Gilley et al, 2017;Gilley, Risse, & Eghball, 2002;USEPA, 2002). Although, in the Al-wadaey, Wortmann, Shapiro, Franti, and Eisenhauer (2010) field trials using cattle manure, setback distances did not impact measured nutrient parameters.…”

Section: Introductionmentioning

confidence: 99%

“…As livestock production operations become larger and more concentrated cost effective, manure application becomes an increasing challenge, and there is pressure to maximize the amount of land to which manure is applied. One management strategy that has been widely used to address environmental and water quality issues is the implementation of setback distances (Gilley, Sindelar, & Woodbury, 2016;USEPA, 2012a). Setbacks are rules or guidelines instructing a certain minimum distance be maintained between two points of interest.…”

Section: Introductionmentioning

confidence: 99%

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Setback distance impacts on transport and antibiotic resistance phenotypes of fecal indicators

Meyers

Durso

Gilley

et al. 2020

Agrosystems Geosci & Env

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Although the land application of livestock manure has numerous agronomic benefits, runoff from manured fields can degrade water quality. Setbacks instruct a minimum distance be maintained between manure application and surface waters. They are commonly used to manage nutrient contamination of surface waters; however, their utility for reducing microbial inputs remains unclear. Here we evaluated the efficacy of five setback distances in no-till wheat (Triticum aestivum L.) residue plots for reducing runoff fecal indicator concentrations from swine manure-amended fields. Also, since there is increasing interest in the use of water quality indicators to monitor antibiotic resistance in environmental systems, Escherichia coli and Enterococcus isolates were collected, and evaluated for resistance to 12 antibiotics. Seven of the 12 antibiotics evaluated in this study are critically important to human health and another four of the antibiotics evaluated are highly important to human health, according to World Health Organization (WHO) guidelines. Significant differences existed in amounts of indicators from pre-and post-manure application time points; however, no significant differences were observed for any of the five setback distances measured (range 4.9-23.2 m). Antibiotic-resistant E. coli and Enterococcus were isolated from pre-and post-application runoff, indicating presence of antibiotic-resistant fecal indicators in both manured and in non-manured soils, although the source manure had a higher percentage of isolates displaying resistance. It remains difficult to provide recommendations for concurrent reduction of nutrient and microbial contaminants.

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Removal of Cattle Manure Constituents in Runoff from No-Till Cropland as Affected by Setback Distance

Cited by 2 publications

References 23 publications

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Setback distance impacts on transport and antibiotic resistance phenotypes of fecal indicators

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