Runoff of Nitrate Nitrogen and Phosphorus from Turfgrass After Watering-In

Shuman, L. M.

doi:10.1081/css-120027631

Cited by 19 publications

(20 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phosphorus fertilizer has been shown to be a minor contributor to P in runoff from turfgrass (Easton and Petrovic 2004), especially after a small amount of irrigation is applied immediately following fertilizer application to facilitate the movement of fertilizer into the soil (Shuman 2004). In addition, Augustin (2007) estimated that 50% of homeowners in the US do not apply fertilizer to their lawns.…”

mentioning

confidence: 99%

Effect of Soil Phosphorus Levels on Phosphorus Runoff Concentrations from Turfgrass

Soldat

Petrovic

Ketterings

2008

Water Air Soil Pollut

View full text Add to dashboard Cite

Phosphorus (P) loss from urban areas has been identified as a major contributor to declining surface water quality. The objective of this study was to determine the relationship between extractable soil P, depth of soil sampling, and dissolved reactive P (DP) concentration in runoff from turfgrass areas. At each site, runoff was generated on turfgrass and adjoining areas where turfgrass cover was removed. Across all six locations and the wide range of nutrient management schemes, variation of extractable soil P concentration and saturation ratios of 0-2cm samples accounted for 49-59% (r 2 = 0.49-0.59, n = 92) of variation of DP concentration in runoff from bare soil and soil with turfgrass cover. Despite a high degree of soil P stratification, changing sampling depth generally did not improve the relationship between soil test P and runoff DP concentrations. Across the narrower range of soil P levels common to lawns in New York (0-50mg kg −1 Morgan extractable soil P), none of the soil tests or P saturation levels (for 0-2cm depth) could accurately predict runoff P concentrations from soil with turfgrass cover (r 2 = 0.02 to 0.23, n = 72). For bare soil plots, restricting the analysis to the same range (<50mg kg −1 Morgan extractable P) did not alter the relationship between soil test P and runoff DP concentrations observed for the entire range (0-658mg kg −1 ) of soil-test P concentrations. These results suggest soil testing will not be an effective tool to predict runoff from turfgrass areas across the range of soil P levels common to New York State.

show abstract

mentioning

confidence: 99%

Effect of Soil Phosphorus Levels on Phosphorus Runoff Concentrations from Turfgrass

Soldat

Petrovic

Ketterings

2008

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…Shuman (2002)(2004) measured nitrate N from simulated golf course fairways of Tifway bermudagrass. In these studies, the ultimate goal was to determine management practices that minimize N transport to surface waters.…”

mentioning

confidence: 99%

Predicting Runoff and Associated Nitrogen Losses from Turfgrass using the Root Zone Water Quality Model (RZWQM)

Schwartz¹,

Shuman²

2005

J of Env Quality

View full text Add to dashboard Cite

Nitrogen fertilizers are used to maintain optimum turfgrass quality, but off-site movement of this primary nutrient can affect water quality. We conducted a 4-yr study (1998-2001) designed to measure nitrate N runoff from turfgrass, gathering data to be used in the model. The process-based Root Zone Water Quality Model (RZWQM) was used to predict nitrate associated with runoff from turfgrass. The measurements were made on 12 sloped (5%), 25-m2 plots of 'Tifway' bermudagrass [Cynodon dactylon (L.) Pers.], managed as golf course fair-ways and exposed to natural and simulated rainfall. Surface runoff volume and nitrate N loads were monitored after applying simulated rainfall at an average intensity of 27.4 mm h(-1). The irrigation occurred (25 or 50 mm) 4 through 168 h after treatment with various rates of N fertilizers for 1998-2001. RZWQM adequately simulated water runoff volumes (<19%; nonsignificant, paired t test) in the first three (normal or wet) years, but overpredicted (70%) in the fourth, dry year. RZWQM overpredicted nitrate N loads by a factor of 1.3 for the first three years (nonsignificant), and by a factor of almost 6 for the fourth year (highly significant). These overpredictions occurred when the runoff volumes and N loads were very small. The research has shown that refinements to RZWQM are needed for turfgrass management applications.

show abstract

“…The percentage of P lost by runoff or leaching immediately after application of P fertilizer is relatively small, on the order of 10-15% without watering-in and <5% with watering-in (Shuman 2004). In a worst-case scenario, in which P fertilizer was applied to saturated soils, 25% of the applied P was lost by runoff or leaching (Linde and Watschke 1997 If soil adsorption sites are not saturated, much of the orthophosphate that infiltrates downward will be adsorbed by soils.…”

Section: Nutrient Cyclesmentioning

confidence: 99%

“…Runoff from experimental turf plots and functional lawns typically contains 0.5-2.0 mg P/L and 3-5 mg N/L (Barten and Jahnke 1997;Waschbusch et al 1999;Easton and Petrovic 2004;Shuman 2004). These levels are sufficient to cause eutrophication of lakes receiving large inputs of lawn runoff.…”

Section: Introductionmentioning

confidence: 99%

“…Meeting these goals will require greater emphasis on source reduction (pollution prevention). Early research (Linde and Watscke 1997;Easton and Petrovic 2004;Shuman 2004) indicates that source reduction via improved lawn management could reduce both the volume of runoff from lawns and the export of nutrients to streets and storm sewers. However, accomplishing this would require better understanding of both biophysical processes of lawns and human behaviors involved in lawn management.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Disproportionality as a Framework to Target Pollution Reduction from Urban Landscapes

Baker¹,

Wilson²,

Fulton³

et al. 2008

CATE

View full text Add to dashboard Cite

as a framework to target pollution reduction from urban landscapes. Cities and the Environment 1(2):article 7, 15 pp. http://escholarship.bc.edu/cate/vol1/iss2/7. New federal water quality regulations regarding impaired waters and urban stormwater, alongside a growing need to reverse eutrophication of urban lakes, are creating demand to decrease nutrient export from urban landscapes, particularly lawns. We propose that Nowak et al.'s (2006) disproportionality framework could be used to target specific households likely to generate disproportionate levels of nutrient export. The biophysical dimension would be based on landscape vulnerability (slope, soil type, proximity to lakes); the social dimension would target "inappropriate" lawn management behaviors leading to high nutrient export on these vulnerable landscapes. Understanding of lawn nutrient cycling (biophysical dimension) and homeowner beliefs and attitudes (social dimension) would be used to develop targeted, specific messages for homeowners practicing inappropriate management. A lawn management program developed with this disproportionality framework would probably be very effective, highly economical and fair, targeting only homeowners who are creating a disproportionate impact. Cities and the Environment

show abstract

Runoff of Nitrate Nitrogen and Phosphorus from Turfgrass After Watering-In

Cited by 19 publications

References 17 publications

Effect of Soil Phosphorus Levels on Phosphorus Runoff Concentrations from Turfgrass

Effect of Soil Phosphorus Levels on Phosphorus Runoff Concentrations from Turfgrass

Predicting Runoff and Associated Nitrogen Losses from Turfgrass using the Root Zone Water Quality Model (RZWQM)

Disproportionality as a Framework to Target Pollution Reduction from Urban Landscapes

Contact Info

Product

Resources

About