Quantifying the effectiveness of a saturated buffer to reduce tile NO3-N concentrations in eastern Iowa

Streeter, Matthew T.; Schilling, Keith E.

doi:10.1007/s10661-021-09297-3

Cited by 11 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An annual NO 3 ‐N tile input to the Frye oxbow exceeded 400 kg on one occasion. The annual tile NO 3 ‐N loading into the oxbows was similar to tile loads draining into other edge‐of‐field remediation practices including saturated buffers reported by Jaynes and Isenhart (2019) (13–179 kg N) and Streeter and Schilling (2021) (75–136 kg N). Our study confirms that reconstructed oxbows should only be considered an agricultural BMP if they are configured to receive tile drainage inputs.…”

Section: Discussionsupporting

confidence: 78%

Nutrient retention in tile‐fed and non‐tile reconstructed oxbows in north central Iowa

Pierce

Schilling

2023

J American Water Resour Assoc

Self Cite

View full text Add to dashboard Cite

Nutrient export from the agricultural Midwest threatens the Gulf of Mexico and new conservation practices are needed to reduce the loss of nutrient from subsurface tile drainage systems. Oxbows are natural waterbodies formed when a river cuts off a meander loop and water quality benefits of reconstructed oxbows are being increasingly recognized. In this study, we monitored four reconstructed oxbow sites (two tile‐fed, two non‐tile) over a 2‐year period in north‐central Iowa and assessed their capacity for NO3‐N and dissolved reactive phosphorus (DRP) reductions. Water flow and quality monitoring of tiles, shallow groundwater, oxbow and receiving streams documented that the oxbows were dominated by tile drainage inputs. NO3‐N concentrations were highest in the drainage tiles flowing into the tile‐fed oxbows (mean 8–10 mg/L) and much lower in floodplain groundwater (<1–2 mg/L). Annual NO3‐N loads into the tile‐fed oxbows were substantially larger than input loads into the non‐tiled oxbows. For the two tile‐fed oxbows, the 2‐year NO3‐N retention efficiencies were very similar (0.76–0.77) and on a monthly basis, greater retention efficiencies were measured in summer and fall. DRP concentrations and loads into the tile‐fed oxbows were too low to allow for meaningful estimates of retention. Reconstructing oxbows to receive tile drainage water should be considered a sustainable conservation practice for tile drainage treatment in agricultural areas.

show abstract

Section: Discussionsupporting

confidence: 78%

Nutrient retention in tile‐fed and non‐tile reconstructed oxbows in north central Iowa

Pierce

Schilling

2023

J American Water Resour Assoc

Self Cite

View full text Add to dashboard Cite

show abstract

“…Perennial plants growing in the buffer intercept the discharge and utilize nutrients contained within the water. Recent research (Streeter & Schilling, 2021) found that saturated buffers reduced nitrate nitrogen (NO 3 -N) concentration in tile drainage from 15 g/L to less than 1.5 mg/L. Saturated buffers work best in locations where the field is sloped less than 1%, there are no layers of sand or gravel, soil organic matter is at least 1% in the upper 30 inches of the soil profile, and the main drains at least 15 ac of land (The Ohio State University, 2021).…”

Section: Featuresmentioning

confidence: 99%

Complete Issue

2021

Crops & Soils

View full text Add to dashboard Cite

Features 3 WinterTriticaleintheSemiaridU.S.PacificNorthwest Drylands CEU 10 VoluntaryVersusState-BasedComplianceCarbonMarkets 14 Offsets,Insets,CarbonMarkets CEU 22 NebraskaIrrigationWellSurvey:NutrientSupplyandLiming Effects CEU 40 FromSpreadertoPredator:KillingWeedSeedswiththe Combine CEU 46 SpatialFrameworkstoSupportAgronomicInnovation CEU Departments SCIENCE POLICY NEWS 27 AdvancingResilientAgriculture 28 Societies'ClimateChangeSolutionStatement. WERA-103 38 SuccessfulExperiencesManagingSaltsandSodium NEW RESEARCh 52 VarietalResponseofWheatandBarleytoNitrogen SUSTAINABILITY SERIES 54 ThinkingBeyondtheBorder:Edge-of-FieldPracticesto ImprovetheEnvironment CEU CERTIfICATION 60 NewlyCertified 62 Highlightsfromthe2021SustainableAgronomyConference CoverAgriculture is a major factor in the Biden Administration's plan to greatly reduce greenhouse gases, but how can we create a system that works for both producers and the many other entities interested in carbon sequestration? Carbon markets offer one solution. This photo shows John Nergenah of Illinois who is enrolled in the Nori carbon removal marketplace through his adoption of cover crops. Photo courtesy of John Nergenah. See related story on p. 14.

show abstract

Section: Saturated Buffers On Tile-drained Fieldsmentioning

confidence: 99%

Thinking Beyond the Border: Edge‐of‐Field Practices to Improve the Environment

Young¹,

Thomson²

2021

Crops & Soils

View full text Add to dashboard Cite

This article is brought to you by the SPARC Initiative created in partnership between the American Society for Agronomy, the Agricultural Retailers Association, Environmental Defense Fund, and Field to Market: The Alliance for Sustainable Agriculture to empower trusted advisers to deliver services that drive continuous improvement in the productivity, profitability, and environmental outcomes of farmers’ operations. Learn more about the SPARC Initiative and access additional resources, including the six‐module series on sustainability, at http://www.fieldtomarket.org/SPARC. Earn 0.5 CEUs in Sustainability by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

show abstract

Quantifying the effectiveness of a saturated buffer to reduce tile NO3-N concentrations in eastern Iowa

Abstract: a geophysical survey (quantifying low potential for N loss to deeper aquifers), and comparisons to other similar Iowa sites. The study provides more assurance to new adopters that this practice can be installed in many areas throughout the Midwestern Cornbelt region.

Cited by 11 publications

References 40 publications

Nutrient retention in tile‐fed and non‐tile reconstructed oxbows in north central Iowa

Nutrient retention in tile‐fed and non‐tile reconstructed oxbows in north central Iowa

Complete Issue

Thinking Beyond the Border: Edge‐of‐Field Practices to Improve the Environment

Contact Info

Product

Resources

About