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- Author:
- Sharpley, A.
- Source:
- Poultry science 1999 v.78 no.5 pp. 660-673
- ISSN:
- 0032-5791
- Subject:
- water pollution; runoff; land application; fertilizer requirements; tillage; poultry manure; soil analysis; losses from soil; eutrophication; phosphorus; battery husbandry; application rate; poultry industry
- Abstract:
- ... With the concentration of poultry production and increase in operation size in several regions of the U.S., more manure is applied to agricultural land. This application of manure has resulted in more P being added than crops require, an accumulation in soil P, and increased potential for P loss in surface runoff. This situation has been exacerbated by manure management being N-based. Increased ou ...
- Handle:
- 10113/18698
- DOI:
- 10.1093/ps/78.5.660
- PubMed:
- 10228962
- https://doi.org/10.1093/ps/78.5.660
- Author:
- Flanagan, Dennis. C.; Zuercher, Benjamin W.; Huang, Chi-hua
- Source:
- Paper 2008 no.085112 pp. -
- ISSN:
- 0149-9890
- Subject:
- agricultural management models; agricultural watersheds; nonpoint source pollution; water pollution; agricultural runoff; sediment yield; nutrients; losses from soil; atrazine; herbicide residues; model validation; prediction; stream flow; simulation models; Indiana
- Abstract:
- ... The Annualized Agricultural Non-Point Source (AnnAGNPS) pollution model was developed for simulation of runoff, sediment, nutrient, and pesticide losses from ungaged agricultural watersheds. Here, the model was applied to the 707 km2 Cedar Creek Watershed (CCW) and the 45 km2 Matson Ditch Sub-Catchment (MDS), which are predominantly (>85%) agricultural, with major crops of corn and soybeans. Atraz ...
- Handle:
- 10113/29383
- Author:
- Saleh, A.; Williams, J.R.; Wood, J.C.; Hauck, L.M.; Blackburn, W.H.
- Source:
- Transactions of the ASAE 2004 v.47 no.3 pp. 751-765
- ISSN:
- 0001-2351
- Subject:
- sediment yield; phosphorus; silvicultural practices; pollution control; forested watersheds; nitrate nitrogen; losses from soil; phosphates; runoff; water pollution; simulation models; best management practices; erosion control; nonpoint source pollution; filter strips; forest roads; organophosphorus compounds; site preparation; environmental models; forest litter; organic nitrogen compounds; computer analysis; water erosion; Texas
- Abstract:
- ... This study was conducted to determine if the Agricultural Policy/Environmental Extender (APEX) model could reasonably replicate the effects of silvicultural practices on streamflow and loading of sediments and nutrients. APEX was modified to enhance factors associated with forestry conditions such as rainfall interception by canopy, litter, subsurface flow, nutrient movement, and routing enrichmen ...
- Handle:
- 10113/9677
- Author:
- Andrew N. Sharpley; Richard W. McDowell; Jennifer L. Weld; Peter J. A. Kleinman
- Source:
- Journal of environmental quality 2001 v.30 no.6 pp. 2026-2036
- ISSN:
- 1537-2537
- Subject:
- water pollution; land classification; animal manures; fields; leaching; risk assessment; watersheds; losses from soil; nonpoint source pollution; rain; soil fertility; manure spreading; phosphorus; water erosion; runoff; Revised Universal Soil Loss Equation; nutrient management; Pennsylvania
- Abstract:
- ... A P index was developed as a tool to rank agricultural fields on the basis of P loss vulnerability, helping to target remedial P management options within watersheds. We evaluated two approaches, a soil P threshold and components of a P index, by comparing site vulnerability estimates derived from these two approaches with measured runoff P losses in an agricultural watershed in Pennsylvania. Rain ...
- Handle:
- 10113/12926
- DOI:
- 10.2134/jeq2001.2026
- PubMed:
- 11790010
- https://doi.org/10.2134/jeq2001.2026
- Author:
- Indiati, R.; Sharpley, A.N.
- Source:
- Communications in soil science and plant analysis 1997 v.28 no.17/18 pp. 1565-1578
- ISSN:
- 0010-3624
- Subject:
- phosphorus; nutrient availability; soil test values; sorption; phosphorus fertilizers; quantity-intensity relationships; losses from soil; water pollution; risk assessment; application rate; fertilizer requirements; nutrient management
- Abstract:
- ... Changes in agronomic and environmental soil phosphorus (P) availability parameters, i.e., Mehlich- and Olsen-extractable P, reversibly-adsorbed P, soil-solution P, and equilibrium-P concentration were determined following equilibration of 13 Italian soils with five rates of P application (0, 12.5, 25, 50, and 100 mg P kg-1 soil). Soil P availability as determined by each parameter increased with a ...
- Handle:
- 10113/19445
- Author:
- McDowell, R.W.; Sharpley, A.N.; Beegle, D.B.; Weld, J.L.
- Source:
- Journal of soil and water conservation 2001 v.56 no.4 pp. 306-315
- ISSN:
- 0022-4561
- Subject:
- phosphorus; losses from soil; runoff; pollution control; watersheds; water pollution; soil fertility; cattle manure; poultry manure; risk assessment; phosphorus fertilizers; pig manure; application rate; fertilizer requirements; nonpoint source pollution; Pennsylvania
- Abstract:
- ... The persistence of water quality problems has directed attention toward reduction of agricultural non-point sources of phosphorus (P). We assessed the practical impact of three management scenarios of the USDA-EPA Strategy for Animal Feeding Operations to reduce P losses from Mahantango Creek watershed in Pennsylvania, USA. Using an agronomic threshold of 50 mg Mehlich-3 P kg-1 soil, 55% of the wa ...
- Handle:
- 10113/23630
- Author:
- J. S. Strock; P. M. Porter; M. P. Russelle
- Source:
- Journal of environmental quality 2004 v.33 no.3 pp. 1010-1016
- ISSN:
- 1537-2537
- Subject:
- water pollution; nitrate nitrogen; pollution control; leaching; losses from soil; subsurface drainage; tile drainage; Secale cereale; rye; cover crops; winter; sowing; crop rotation; Zea mays; corn; Glycine max; soybeans; crop yield; Corn Belt region; Minnesota
- Abstract:
- ... Despite the use of best management practices for nitrogen (N) application rate and timing, significant losses of nitrate nitrogen NO⁻ ₃–N in drainage discharge continue to occur from row crop cropping systems. Our objective was to determine whether a autumn-seeded winter rye (Secale cereale L.) cover crop following corn (Zea mays L.) would reduce NO⁻ ₃–N losses through subsurface tile drainage in ...
- Handle:
- 10113/9125
- DOI:
- 10.2134/jeq2004.1010
- PubMed:
- 15224938
- https://doi.org/10.2134/jeq2004.1010
- Author:
- Thorp, K.R.; Youssef, M.A.; Jaynes, D.B.; Malone, R.W.; Ma, L.
- Source:
- Transactions of the ASABE 2009 v.52 no.5 pp. 1557-1573
- Subject:
- water pollution; crop production; simulation models; nitrogen fertilizers; Zea mays; Glycine max; nitrogen; fertilizer rates; soybeans; nitrate nitrogen; corn; losses from soil; agricultural management models; drainage water; subsurface drainage; hydrologic models; agricultural watersheds; Iowa
- Abstract:
- ... A new simulation model for N dynamics, DRAINMOD-N II, has been previously evaluated for only a few sites. We evaluated the model using ten years (1996-2005) of measured data from a subsurface-drained, corn-soybean agricultural system near Story City, Iowa. Nitrogen fertilizer was applied to plots at low, medium, and high rates (57 to 67 kg N ha -1 , 114 to 135 kg N ha -1 , and 172 to 202 kg N ha - ...
- Handle:
- 10113/38068
- Author:
- Ghebremichael, L.T.; Veith, T.L.; Watzin, M.C.
- Source:
- Transactions of the ASABE 2010 v.53 no.5 pp. 1595-1604
- Subject:
- water pollution; phosphorus; losses from soil; agricultural watersheds; dairy farming; tile drainage; Soil and Water Assessment Tool model; rivers; Vermont
- Abstract:
- ... Lake Champlain, located between Vermont, New York, and Quebec, exhibits eutrophication due to continuing phosphorus (P) inputs from upstream nonpoint-source areas. To address the effects of this eutrophication and as part of total maximum daily load (TMDL) requirements, state-level P reduction goals have been established by both the Vermont and New York Departments of Environmental Conservation. U ...
- Handle:
- 10113/46715
- Author:
- Meals, Donald W.; Cassell, E. Alan; Hughell, David; Wood, Lynnette; Jokela, William E.; Parsons, Robert
- Source:
- Agriculture, ecosystems & environment 2008 v.127 no.3-4 pp. 223-233
- ISSN:
- 0167-8809
- Subject:
- agricultural land; phosphorus; losses from soil; surface water; water pollution; nonpoint source pollution; simulation models; balance studies; mass transfer; nutrient management; agricultural watersheds; temporal variation; spatial variation; dairy farming; model validation; calibration; lawns and turf; grasslands; field crops; erosion control; cropping systems; soil fertility; soil test values; Vermont
- Abstract:
- ... Cost-effective nonpoint source phosphorus (P) control should target the land areas at greatest risk for P loss. We combined mass-balance modeling and geographic analysis to identify and map high-risk areas for P export by integrating long-term P input/output accounting with spatially variable physiographic, land use, and agronomic factors. The dynamic interactive simulation of phosphorus loss area ...
- Handle:
- 10113/18982
- DOI:
- 10.1016/j.agee.2008.04.005
- https://doi.org/10.1016/j.agee.2008.04.005
- Author:
- Torbert, H. Allen; Gerik, Thomas J.; Harman, Wyatte L.; Williams, Jimmy R.; Magre, Melanie
- Source:
- Communications in soil science and plant analysis 2008 v.39 no.19-20 pp. 3002-3031
- ISSN:
- 0010-3624
- Subject:
- poultry manure; application timing; fertilizer application; pollution control; water quality; water pollution; cool season grasses; warm season grasses; agricultural runoff; seasonal variation; nitrogen; phosphorus; nutrient uptake; statistical models; simulation models; nonpoint source pollution; forage grasses; crop yield; mineral fertilizers; winter; computer analysis; losses from soil; Alabama
- Abstract:
- ... Recently, changes in the utilization practices of animal manures for fertilization have been encouraged to reduce the potential of nonpoint pollution of lakes and streams from agricultural land. However, the potential impact of changing some of these practices has not been fully studied. The objective of this study was to examine the potential impact of limiting poultry litter application times on ...
- Handle:
- 10113/23246
- DOI:
- 10.1080/00103620802432899
- https://doi.org/10.1080/00103620802432899
- Author:
- Nan Hong; Peter C. Scharf; J. Glenn Davis; Newell R. Kitchen; Kenneth A. Sudduth
- Source:
- Journal of environmental quality 2007 v.36 no.2 pp. 354-362
- ISSN:
- 1537-2537
- Subject:
- water pollution; Zea mays; application timing; fertilizer rates; corn; nitrate nitrogen; losses from soil; field experimentation; nitrogen fertilizers; Missouri
- Abstract:
- ... Post-harvest residual soil NO₃–N (RSN) is susceptible to transfer to water resources. Practices that minimize RSN levels can reduce N loss to the environment. Our objectives were (i) to determine if the RSN after corn (Zea mays L.) harvest can be reduced if N fertilizer is applied at the economically optimal N rate (EONR) as compared to current producer practices in the midwestern USA and (ii) to ...
- Handle:
- 10113/15490
- DOI:
- 10.2134/jeq2006.0173
- PubMed:
- 17255622
- https://doi.org/10.2134/jeq2006.0173
- Author:
- Webber, D.F.; Mickelson, S.K.; Richard, T.L.; Ahn, H.K.
- Source:
- Journal of soil and water conservation 2009 v.64 no.2 pp. 163-171
- ISSN:
- 0022-4561
- Subject:
- windrow composting; animal manures; fly ash; rain; runoff; phosphorus; nitrate nitrogen; soil nutrients; losses from soil; filter strips; sediment yield; water quality; water pollution; Iowa
- Abstract:
- ... This study quantified the effects of a livestock manure-based windrow composting practice with a fly ash composting pad surface and vegetative filter strip (VFS) buffers on losses of runoff, runoff percent of rainfall, total solids, nitrate-nitrogen, ortho-phosphorus (PO₄-P), and total-phosphorus during natural rainfall events. Runoff data from six events were collected during June and July (early ...
- Handle:
- 10113/33594
- DOI:
- 10.2489/jswc.64.2.163
- https://doi.org/10.2489/jswc.64.2.163
- Author:
- Nangia, Vinay; Gowda, Prasanna H.; Mulla, D.J.
- Source:
- Agricultural water management 2010 v.97 no.11 pp. 1855-1860
- ISSN:
- 0378-3774
- Subject:
- water pollution; application timing; agricultural watersheds; snowmelt; water quality; calibration; fertilizer rates; nitrate nitrogen; model validation; losses from soil; seasonal variation; hydrologic models; nitrogen fertilizers; Minnesota
- Abstract:
- ... In this study, the ADAPT (Agricultural Drainage and Pesticide Transport) model was calibrated and validated for monthly flow and nitrate-N losses, for the 2000-2004 period, from two minor agricultural watersheds in Seven Mile Creek (SMC-1 and SMC-2) in south-central Minnesota. First, the model was calibrated and validated using the water quality data from the SMC-1 and again independently validate ...
- Handle:
- 10113/46185
- DOI:
- 10.1016/j.agwat.2010.06.023
- https://doi.org/10.1016/j.agwat.2010.06.023
- Author:
- Warnemuende, E.A.; Patterson, J.P.; Smith, D.R.; Huang, C.H.
- Source:
- Soil & tillage research 2007 v.95 no.1-2 pp. 19-26
- ISSN:
- 0167-1987
- Subject:
- water pollution; atrazine; agricultural soils; no-tillage; water quality; agricultural runoff; losses from soil; glyphosate; rain intensity; rainfall simulation
- Abstract:
- ... Herbicides released through agricultural activities to surface waters and drinking water systems represent a risk to human and environmental health, as well as a cost to municipalities for removal. This study focuses on the viability of glyphosate tolerant cropping systems as an alternative to atrazine-based systems, and the impact of tilling historically no-till ground on the runoff pollution pot ...
- Handle:
- 10113/5865
- DOI:
- 10.1016/j.still.2006.09.001
- https://doi.org/10.1016/j.still.2006.09.001
- Author:
- O. R. Jones; S. J. Smith; L. M. Southwick; A. N. Sharpley
- Source:
- Journal of environmental quality 1995 v.24 no.3 pp. 453-460
- ISSN:
- 0047-2425
- Subject:
- Triticum aestivum; Sorghum bicolor; fallow; continuous cropping; no-tillage; stubble mulching; dryland farming; herbicides; weeds; weed control; clay loam soils; runoff; leaching; nutrients; herbicide residues; nitrate nitrogen; soil profiles; losses from soil; water pollution; sediments; Texas
- Abstract:
- ... Increased use of agricultural chemicals with no-tillage (NT) may negatively impact the environment through chemical or nutrient loss in runoff or by leaching below the root zone. We compared environmental impacts of NT and the lower chemical input stubble mulch (SM) management methods for dryland crop production on a clay loam soil in a semiarid environment. We measured runoff volume and sediment, ...
- Handle:
- 10113/19858
- DOI:
- 10.2134/jeq1995.00472425002400030009x
- https://doi.org/10.2134/jeq1995.00472425002400030009x
- Author:
- Jason G. Warren; Steven B. Phillips; Greg L. Mullins; Dale Keahey; Chad J. Penn
- Source:
- Journal of environmental quality 2006 v.35 no.1 pp. 172-182
- ISSN:
- 1537-2537
- Subject:
- water pollution; water solubility; Zea mays; bioaccumulation; alum; fertilizer rates; agricultural runoff; corn; poultry manure; soil amendments; losses from soil; grain yield; aluminum; phosphorus; triple superphosphate; rainfall simulation; Virginia
- Abstract:
- ... Field trials were established to compare alum-treated poultry litter (ATPL), normal poultry litter (NPL), and triple superphosphate (TSP) as fertilizer sources for corn (Zea mays L.) when applied at rates based on current litter management strategies in Virginia. Trials were established in the Costal Plain and Piedmont physiographic regions near Painter and Orange, VA, respectively. Nitrogen-based ...
- Handle:
- 10113/8063
- DOI:
- 10.2134/jeq2004.0418
- PubMed:
- 16391288
- https://doi.org/10.2134/jeq2004.0418
- Author:
- P. A. Vadas; L. W. Good; P. A. Moore; N. Widman
- Source:
- Journal of environmental quality 2009 v.38 no.4 pp. 1645-1653
- ISSN:
- 1537-2537
- Subject:
- water pollution; estimation; environmental models; land application; animal manures; agricultural runoff; phosphorus fertilizers; model validation; losses from soil; nonpoint source pollution; soil erosion; point source pollution; phosphorus; prediction
- Abstract:
- ... Nonpoint-source pollution of fresh waters by P is a concern because it contributes to accelerated eutrophication. Given the state of the science concerning agricultural P transport, a simple tool to quantify annual, field-scale P loss is a realistic goal. We developed new methods to predict annual dissolved P loss in runoff from surface-applied manures and fertilizers and validated the methods wit ...
- Datasets:
- APLE : Annual Phosphorus Loss Estimator Tool
- Handle:
- 10113/31758
- DOI:
- 10.2134/jeq2008.0337
- PubMed:
- 19549941
- https://doi.org/10.2134/jeq2008.0337
- Author:
- Carpenter, S.R.
- Source:
- Proceedings of the National Academy of Sciences of the United States of America 2005 v.102 no.29 pp. 10002-10005
- ISSN:
- 0027-8424
- Subject:
- water pollution; eutrophication; phosphorus; lakes; hydrochemistry; losses from soil; agricultural soils; soil fertility; soil nutrients; sediments; mathematical models; fertilizer application; phosphorus fertilizers
- Abstract:
- ... Eutrophication (the overenrichment of aquatic ecosystems with nutrients leading to algal blooms and anoxic events) is a persistent condition of surface waters and a widespread environmental problem. Some lakes have recovered after sources of nutrients were reduced. In others, recycling of phosphorus from sediments enriched by years of high nutrient inputs causes lakes to remain eutrophic even afte ...
- DOI:
- 10.1073/pnas.0503959102
- PubMed:
- 15972805
- PubMed Central:
- PMC1177388
- https://doi.org/10.1073/pnas.0503959102
20. Evaluating Aeration Techniques for Decreasing Phosphorus Export from Grasslands Receiving Manure
- Author:
- David M. Butler; Dorcas H. Franklin; Miguel L. Cabrera; Armando S. Tasistro; Kang Xia; Larry T. West
- Source:
- Journal of environmental quality 2008 v.37 no.3 pp. 1279-1287
- ISSN:
- 1537-2537
- Subject:
- grasslands; pastures; agricultural runoff; phosphorus; aeration; immobilization in soil; poultry manure; dairy manure; sandy loam soils; soil compaction; losses from soil; infiltration (hydrology); water pollution; rainfall simulation; soil properties; total suspended solids; bioavailability; forage; dry matter accumulation; Georgia
- Abstract:
- ... Because surface-applied manures can contribute to phosphorus (P) in runoff, we examined mechanical aeration of grasslands for reducing P transport by increasing infiltration of rainfall and binding of P with soil minerals. The effects of three aeration treatments and a control (aeration with cores, continuous-furrow “no-till” disk aeration perpendicular to the slope, slit aeration with tines, and ...
- Handle:
- 10113/17942
- DOI:
- 10.2134/jeq2007.0289
- PubMed:
- 18453448
- https://doi.org/10.2134/jeq2007.0289