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- Author:
- Peter A. Vadas, et al. ; Carl H. Bolster; Barret M. Wessel; Nicole M. Fiorellino; Show all 4 Authors
- Source:
- Journal of environmental quality 2022 v.51 no.2 pp. 216-227
- ISSN:
- 0047-2425
- Subject:
- Monte Carlo method; data collection; drawdown; environmental quality; models; phosphorus; prediction; soil; uncertainty analysis; variance; Maryland
- Abstract:
- ... In this study we conducted a sensitivity and uncertainty analysis using the Annual P Loss Estimator (APLE) model focusing on model predictions of soil test phosphorus (STP). We calculated and evaluated the sensitivity coefficients of predicted STP and changes in STP using 1‐ and 10‐yr simulations with and without P application. We also compared two methods for estimating prediction uncertainties: ...
- Handle:
- 10113/7709662
- DOI:
- 10.1002/jeq2.20328
- https://doi.org/10.1002/jeq2.20328
- Author:
- Peter A. Vadas, et al. ; Sharon M. O’Rourke; Robert H. Foy; Catherine J. Watson; Alan Gordon; Suzanne Higgins; Show all 6 Authors
- Source:
- Soil use and management 2022 v.38 no.1 pp. 611-621
- ISSN:
- 0266-0032
- Subject:
- administrative management; dairy manure; grasslands; hydrologic models; mineralization; phosphorus; rain; rainfall simulation; risk; runoff; slurries; soil; sward; Ireland
- Abstract:
- ... Minimizing slurry phosphorus (P) losses in runoff requires careful management in the context of both soil P surpluses and changing patterns in rainfall. Increasing the time interval between slurry application and the first rainstorm event is known to reduce P loss in runoff although the risk period for elevated P concentrations in runoff can extend for weeks. This study investigated the impact of ...
- DOI:
- 10.1111/sum.12732
- https://doi.org/10.1111/sum.12732
3. Envisioning the manureshed: Toward comprehensive integration of modern crop and animal production
- Author:
- Peter A. Vadas, et al. ; Peter J. A. Kleinman; Sheri A. Spiegal; Maria L. Silviera; John M. Baker; Curtis J. Dell; Shabtai Bittman; Raj Cibin; Michael D. Buser; Teferi Tsegaye; Show all 10 Authors
- Source:
- Journal of environmental quality 2022 v.51 no.4 pp. 481-493
- ISSN:
- 0047-2425
- Subject:
- animal production; byproducts; crop production; environmental quality; fertilizers; livestock; nutrient balance
- Abstract:
- ... The specialization and intensification of agriculture have produced incredible gains in productivity, quality, and availability of agricultural commodities but have resulted in the separation of crop and animal production. A by‐product of this separation has been the accumulation of manure regions where animal production is concentrated. Enter the “manureshed,” an organizing framework for integrat ...
- DOI:
- 10.1002/jeq2.20382
- https://doi.org/10.1002/jeq2.20382
- Author:
- Peter A. Vadas, et al. ; J. Mark Powell; Show all 2 Author
- Source:
- Transactions of the ASABE v.62 no.1 pp. 131-138
- ISSN:
- 2151-0032
- Subject:
- bark mulches; crop rotation; cropland; dairy cattle; excretion; farms; fertilizers; heifers; leachates; nitrogen; phosphorus; runoff; sand; soil; total nitrogen
- Abstract:
- ... On dairy farms, outdoor lots where cows spend substantial time can be areas of high nutrient deposition in manure. This represents an inefficient use of farm nutrients, if the nutrients are not recovered, and a potential for nutrient loss to the environment. Management of barnyards to recover nutrients can have environmental and production benefits. We monitored nitrogen (N) and phosphorus (P) fat ...
- DOI:
- 10.13031/trans.12901
- https://doi.org/10.13031/trans.12901
- Author:
- Peter A. Vadas, et al. ; Melanie N. Stock; Francisco J. Arriaga; K.G. Karthikeyan; Show all 4 Authors
- Source:
- Journal of hydrology 2019 v.569 pp. 51-60
- ISSN:
- 0022-1694
- Subject:
- absorption; agricultural runoff; agricultural soils; application timing; conventional tillage; digital images; energy flow; guidelines; landscapes; liquid manure; manure spreading; net radiation; no-tillage; nutrient retention; regression analysis; snowmelt; snowpack; winter; Wisconsin
- Abstract:
- ... Reducing agricultural runoff year-round is important, in particular during snowmelt events on landscapes that receive wintertime applications of manure. To help inform manure guidelines, process-level data are needed that link management scenarios with the complexity of snowmelt, hence runoff. Albedo and radiative energy fluxes are strong drivers of thaw, but applying these mechanistic measurement ...
- DOI:
- 10.1016/j.jhydrol.2018.11.028
- https://doi.org/10.1016/j.jhydrol.2018.11.028
- Author:
- Peter A. Vadas, et al. ; Manal H. Askar; Mohamed A. Youssef; Dean L. Hesterberg; Aziz Amoozegar; George M. Chescheir; R. Wayne Skaggs; Show all 7 Authors
- Source:
- Transactions of the ASABE v.64 no.6 pp. 1835-1848
- ISSN:
- 2151-0032
- Subject:
- atmospheric deposition; macropore flow; mineral fertilizers; mineralization; nitrogen; phosphorus; runoff; sediment deposition; sediments; soil; soil erosion; subsurface drainage; surface water; tillage; water quality; weather; Ohio
- Abstract:
- ... HighlightsDRAINMOD-P has been developed to simulate phosphorus (P) dynamics in drained croplands.Key hydrological and biochemical processes affecting P cycling are represented in the model.The model predicts surface and subsurface P losses as affected by weather, soil, and management factors.Abstract. High phosphorus (P) loads to streams and lakes can promote harmful algae blooms and cause water q ...
- DOI:
- 10.13031/trans.14509
- https://doi.org/10.13031/trans.14509
- Author:
- Peter A. Vadas, et al. ; Carl H. Bolster; Show all 2 Author
- Source:
- Soil Science Society of America journal 2018 v.82 no.2 pp. 493-501
- ISSN:
- 0361-5995
- Subject:
- computer simulation; inorganic phosphorus; landscapes; models; soil; sorption
- Abstract:
- ... Core Ideas Two methods for calculating soil P sorption capacity parameter (PSP) were evaluated. PSP values from the two methods were not well correlated with each other. PSP values calculated by these two methods are likely not estimating the same soil property. An assumption in the EPIC model that the ratio of stable to active P is 4 may not be valid. Methods of PSP estimation need improvement, a ...
- Handle:
- 10113/6472198
- DOI:
- 10.2136/sssaj2017.09.0317
- https://doi.org/10.2136/sssaj2017.09.0317
8. Dynamics of Measured and Simulated Dissolved Phosphorus in Runoff from Winter‐Applied Dairy Manure
- Author:
- Peter A. Vadas, et al. ; Melanie N. Stock; Francisco J. Arriaga; Laura W. Good; K. G. Karthikeyan; Zachariah P. Zopp; Show all 6 Authors
- Source:
- Journal of environmental quality 2019 v.48 no.4 pp. 899-906
- ISSN:
- 0047-2425
- Subject:
- computer simulation; dairy manure; dissolved phosphorus; frozen soils; hydrologic models; issues and policy; liquid manure; manure spreading; no-tillage; phosphorus; prediction; rain; runoff; sediments; snow; snowmelt; snowpack; soil; surface roughness; total phosphorus; water quality; winter
- Abstract:
- ... Agricultural P loss from fields is an issue due to water quality degradation. Better information is needed on the P loss in runoff from dairy manure applied in winter and the ability to reliably simulate P loss by computer models. We monitored P in runoff during two winters from chisel‐tilled and no‐till field plots that had liquid dairy manure applied in December or January. Runoff total P was do ...
- DOI:
- 10.2134/jeq2018.11.0416
- https://doi.org/10.2134/jeq2018.11.0416
- Author:
- Peter A. Vadas, et al. ; Melanie N. Stock; Francisco J. Arriaga; Laura W. Good; Michael D. Casler; K. G. Karthikeyan; Zachariah Zopp; Show all 7 Authors
- Source:
- Journal of environmental quality 2019 v.48 no.4 pp. 889-898
- ISSN:
- 0047-2425
- Subject:
- agricultural runoff; application timing; autumn; chiseling; freezing; frost; frozen soils; growing season; landscapes; liquid manure; manure spreading; monitoring; no-tillage; pollution control; pollution load; risk; snow; soil; surface roughness; winter; Wisconsin
- Abstract:
- ... Reducing agricultural runoff is important year round, particularly on landscapes that receive wintertime applications of manure. No‐tillage systems are typically associated with reduced runoff loads during the growing season, but surface roughness from fall tillage may aid infiltration on frozen soils by providing surface depressional storage. The timing of winter manure applications may also affe ...
- DOI:
- 10.2134/jeq2018.11.0417
- https://doi.org/10.2134/jeq2018.11.0417
- Author:
- Peter A. Vadas, et al. ; Jian Liu; Helen M. Baulch; Merrin L. Macrae; Henry F. Wilson; Jane A. Elliott; Lars Bergström; Aaron J. Glenn; Show all 8 Authors
- Source:
- Journal of environmental quality 2019 v.48 no.4 pp. 792-802
- ISSN:
- 0047-2425
- Subject:
- agricultural watersheds; biogeochemical cycles; climate change; cold; cold zones; food production; freeze-thaw cycles; hydrochemistry; models; nutrient transport; nutrient uptake; phosphorus; prediction; riparian buffers; snowmelt; soil; vegetation; water quality
- Abstract:
- ... Cold agricultural regions are important sites of global food production. This has contributed to widespread water quality degradation influenced by processes and hydrologic pathways that differ from warm region analogues. In cold regions, snowmelt is often a dominant period of nutrient loss. Freeze–thaw processes contribute to nutrient mobilization. Frozen ground can limit infiltration and interac ...
- DOI:
- 10.2134/jeq2019.05.0220
- https://doi.org/10.2134/jeq2019.05.0220
- Author:
- Peter A. Vadas, et al. ; Nicole M. Fiorellino; Frank J. Coale; Robert Kratochvil; Alisha S. Mulkey; Josh M. McGrath; Show all 6 Authors
- Source:
- Journal of environmental quality 2018 v.47 no.3 pp. 480-486
- ISSN:
- 0047-2425
- Subject:
- cropland; drawdown; issues and policy; nutrient management; phosphorus; simulation models; soil; water quality; watersheds; Chesapeake Bay; Maryland
- Abstract:
- ... Agricultural nutrient management is an issue due to P loss from fields and water quality degradation. This is especially true in watersheds where a history of P application in excess of crop needs has resulted in elevated soil P (legacy P). As practices and policy are implemented in such watersheds to reduce P loss, information is needed on time required to draw down soil P and how much P loss can ...
- DOI:
- 10.2134/jeq2017.12.0481
- https://doi.org/10.2134/jeq2017.12.0481
- Author:
- Peter A. Vadas, et al. ; Melanie N. Stock; Gary W. Feyereisen; Francisco J. Arriaga; Laura W. Good; K. G. Karthikeyan; Show all 6 Authors
- Source:
- Journal of environmental quality 2018 v.47 no.4 pp. 848-855
- ISSN:
- 0047-2425
- Subject:
- ammonia; risk; ammonium; application rate; dairy manure; liquid manure; melting; nitrogen; nutrient management; phosphorus; runoff; snow; snowmelt; snowpack; temperature; volatilization; water quality; winter
- Abstract:
- ... Agricultural nutrient management is an issue due to N and P losses from fields and water quality degradation. Better information is needed on the risk of nutrient loss in runoff from dairy manure applied in winter. We investigated the effect of temperature on nutrient release from liquid and semisolid manure to water, and of manure quantity and placement within a snowpack on nutrient release to me ...
- Handle:
- 10113/6743204
- DOI:
- 10.2134/jeq2017.12.0464
- https://doi.org/10.2134/jeq2017.12.0464
- Author:
- Peter A. Vadas, et al. ; Nicole M. Fiorellino; Joshua M. McGrath; Carl H. Bolster; Frank J. Coale; Show all 5 Authors
- Source:
- Journal of environmental quality 2017 v.46 no.6 pp. 1380-1387
- ISSN:
- 0047-2425
- Subject:
- agricultural land; agricultural soils; data collection; losses from soil; models; phosphorus; site index; surface water; Maryland
- Abstract:
- ... The Phosphorus (P) Index was developed to provide a relative ranking of agricultural fields according to their potential for P loss to surface water. Recent efforts have focused on updating and evaluating P Indices against measured or modeled P loss data to ensure agreement in magnitude and direction. Following a recently published method, we modified the Maryland P Site Index (MD‐PSI) from a mult ...
- DOI:
- 10.2134/jeq2016.05.0203
- https://doi.org/10.2134/jeq2016.05.0203
- Author:
- Peter A. Vadas, et al. ; Carl H. Bolster; Debbie Boykin; Show all 3 Authors
- Source:
- Journal of hydrology 2016 v.539 pp. 27-37
- ISSN:
- 0022-1694
- Subject:
- agricultural management; climatic factors; conservation practices; data collection; equations; fate and transport models; leaching; losses from soil; model uncertainty; parameter uncertainty; phosphorus; phosphorus fertilizers; prediction; runoff; uncertainty analysis
- Abstract:
- ... Phosphorous (P) fate and transport models are important tools for developing and evaluating conservation practices aimed at reducing P losses from agricultural fields. Because all models are simplifications of complex systems, there will exist an inherent amount of uncertainty associated with their predictions. It is therefore important that efforts be directed at identifying, quantifying, and com ...
- Handle:
- 10113/62944
- DOI:
- 10.1016/j.jhydrol.2016.05.009
- CHORUS:
- 10.1016/j.jhydrol.2016.05.009
- Chorus Open Access:
- 10.1016/j.jhydrol.2016.05.009
- https://doi.org/10.1016/j.jhydrol.2016.05.009
- Author:
- Peter A. Vadas, et al. ; Laura W. Good; William E. Jokela; K.G. Karthikeyan; Francisco J. Arriaga; Melanie Stock; Show all 6 Authors
- Source:
- Journal of environmental quality 2017 v.46 no.6 pp. 1395-1402
- ISSN:
- 0047-2425
- Subject:
- computer simulation; dairy manure; losses from soil; manure spreading; meteorological data; models; phosphorus; risk; runoff; seasonal variation; water quality; winter
- Abstract:
- ... Agricultural phosphorus (P) management is a research and policy issue due to P loss from fields and water quality degradation. Better information is needed on the risk of P loss from dairy manure applied in winter or when runoff is imminent. We used the SurPhos computer model and 108 site–years of weather and runoff data to assess the impact of these two practices on dissolved P loss. Model result ...
- Handle:
- 10113/5700679
- DOI:
- 10.2134/jeq2016.06.0220
- https://doi.org/10.2134/jeq2016.06.0220
- Author:
- Peter A. Vadas, et al. ; Benjamin D. Duval; Matias Aguerre; Michel Wattiaux; J. Mark Powell; Show all 5 Authors
- Source:
- Water, air, and soil pollution 2016 v.227 no.9 pp. 329
- ISSN:
- 0049-6979
- Subject:
- Castanea; ammonia; barns; dairy cows; diet; ecological footprint; greenhouse gas emissions; greenhouse gases; instrumentation; long term effects; methane; milk; milk production; nitrous oxide; proanthocyanidins; stanchions; tannins
- Abstract:
- ... Dairy cows are responsible for significant emissions of enteric methane (CH₄) and produce nitrous oxide (N₂O) and ammonia (NH₃) gas from manure. As an abatement strategy, we explored the effects of long-term condensed tannin (Quebracho and chestnut extracts) addition to dairy cow diets. Previous studies have demonstrated that tannins in cow diets reduce methane and ammonia efflux, but none have do ...
- Handle:
- 10113/5483264
- DOI:
- 10.1007/s11270-016-2997-6
- CHORUS:
- 10.1007/s11270-016-2997-6
- https://doi.org/10.1007/s11270-016-2997-6
- Author:
- Peter A. Vadas, et al. ; Dennis L. Busch; J.Mark Powell; Geoff E. Brink; Show all 4 Authors
- Source:
- Agriculture, ecosystems & environment 2015 v.199 pp. 124-131
- ISSN:
- 0167-8809
- Subject:
- agricultural runoff; atmospheric precipitation; beef cattle; cropland; dairy cattle; dairy farming; feces; fertilizers; grazing; losses from soil; models; monitoring; nitrogen; nutrients; pastures; phosphorus; production technology; remediation; sediment yield; sediments; snowmelt; soil; soil erosion; vegetation; water quality; Wisconsin
- Abstract:
- ... Nitrogen (N) and phosphorus (P) loss from agriculture persists as a water quality impairment issue. For dairy farms, nutrients can be lost from cropland, pastures, barnyards, and outdoor cattle lots. We monitored N and P loss in runoff from dairy and beef grazed pastures for two years in southwest Wisconsin, USA and tested the accuracy of the Annual P Loss Estimator (APLE) model to predict runoff ...
- Handle:
- 10113/61414
- DOI:
- 10.1016/j.agee.2014.08.026
- https://doi.org/10.1016/j.agee.2014.08.026
- Author:
- Peter A. Vadas, et al. ; Matthew F. Digman; Show all 2 Author
- Source:
- Biomass and bioenergy 2013 v.54 pp. 133-139
- ISSN:
- 0961-9534
- Subject:
- Farms and Farming Systems; bags; bioenergy; chopping; corn stover; feedstocks; harvesting; production costs; silage; storage; North America
- Abstract:
- ... Corn stover has potential as a bioenergy feedstock in North America. We simulated production costs for stover harvest (three-pass and two-pass with baling or chopping, and single-pass with baling or chopping) and on-farm storage (outdoor and indoor bales, outdoor wrapped bales, and chopped stover in bags, bunks, or piles). For three- and two-pass harvest, chopping was 33–45% more expensive than ba ...
- Handle:
- 10113/56512
- DOI:
- 10.1016/j.biombioe.2013.03.028
- https://doi.org/10.1016/j.biombioe.2013.03.028
- Author:
- Peter A. Vadas, et al. ; Alisha Spears Mulkey; Frank J. Coale; Gary W. Shenk; Gopal X. Bhatt; Show all 5 Authors
- Source:
- Journal of environmental quality 2017 v.46 no.6 pp. 1388-1394
- ISSN:
- 0047-2425
- Subject:
- acreage; agricultural land; calibration; estimation; hydrologic models; monitoring; nutrient management; nutrients; phosphorus; pollution load; sediment transport; sediments; soil properties; water quality; watersheds; Chesapeake Bay
- Abstract:
- ... Current restoration efforts for the Chesapeake Bay watershed mandate a timeline for reducing the load of nutrients and sediment into receiving waters. The Chesapeake Bay watershed model (WSM) has been used for two decades to simulate hydrology and nutrient and sediment transport; however, spatial limitations of the WSM preclude edge‐of‐field scale representation of phosphorus (P) losses. Rather, t ...
- Handle:
- 10113/5700678
- DOI:
- 10.2134/jeq2016.05.0201
- https://doi.org/10.2134/jeq2016.05.0201
- Author:
- Peter A. Vadas, et al. ; Paul J. A. Withers; Risto Uusitalo; Kirsty J. Forber; Murray Hart; Robert H. Foy; Antonio Delgado; Warwick Dougherty; Harri Lilja; Lucy L. Burkitt; Gitte H. Rubæk; Dan Pote; Kirsten Barlow; Shane Rothwell; Phillip R. Owens; Show all 15 Authors
- Source:
- Journal of environmental quality 2019 v.48 no.5 pp. 1234-1246
- ISSN:
- 0047-2425
- Subject:
- agricultural soils; drawdown; ecosystem services; erosion control; eutrophication; farms; fertilizers; intensive farming; issues and policy; land productivity; models; phosphorus; pollution load; runoff; soil erosion; total phosphorus; water quality; watersheds; Australia; Europe; United States
- Abstract:
- ... Unnecessary accumulation of phosphorus (P) in agricultural soils continues to degrade water quality and linked ecosystem services. Managing both soil loss and soil P fertility status is therefore crucial for eutrophication control, but the relative environmental benefits of these two mitigation measures, and the timescales over which they occur, remain unclear. To support policies toward reduced P ...
- DOI:
- 10.2134/jeq2019.03.0131
- https://doi.org/10.2134/jeq2019.03.0131