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Journal of environmental quality
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7985-2015
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2015 v.44 no.2
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- Author:
- Catharine Weber; Laura McCann
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 391-401
- ISSN:
- 0047-2425
- Subject:
- Agricultural Resource Management Survey; conservation tillage; corn; crop production; education programs; environmental quality; farmers; fertilizers; information sources; nitrogen; nutrient use efficiency; plant tissues; soil analysis; sustainable technology; United States
- Abstract:
- ... Anthropogenically introduced nitrogen (N) has compromised environmental quality, but it is an essential element for crop production, particularly corn production. Increasing N use efficiency by adopting eco-innovations such as N soil testing, plant tissue testing, and N transformation inhibitors can ameliorate this problem. Data from the 2010 USDA Agricultural Resource Management Survey of corn pr ...
- DOI:
- 10.2134/jeq2014.02.0089
- https://doi.org/10.2134/jeq2014.02.0089
- Author:
- Peng Liu; Carol J. Ptacek; David W. Blowes; William R. Berti; Richard C. Landis
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 684-695
- ISSN:
- 0047-2425
- Subject:
- Fourier transform infrared spectroscopy; agricultural wastes; alkalinity; bioavailability; biochar; carbon sequestration; dissolved organic carbon; energy-dispersive X-ray analysis; feedstocks; heavy metals; leaching; micropores; moieties; organic acids and salts; pH; pyrolysis; quinones; scanning electron microscopy; soil amendments; temperature; water treatment; wood
- Abstract:
- ... Biochar has been used as a soil amendment, as a water treatment material, and for carbon (C) sequestration. Thirty-six biochars, produced from wood, agricultural residue, and manure feedstocks at different temperatures, were evaluated for the aqueous leaching of different forms of soluble C. The release of inorganic C (alkalinity), organic acids (OAs), and total dissolved organic C (DOC) was highl ...
- DOI:
- 10.2134/jeq2014.08.0341
- https://doi.org/10.2134/jeq2014.08.0341
- Author:
- Gary W. Feyereisen; Wendy Francesconi; Douglas R. Smith; Sharon K. Papiernik; Erik S. Krueger; Christopher D. Wente
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 594-604
- ISSN:
- 0047-2425
- Subject:
- agrochemicals; drainage water; environmental quality; gravel; growing season; hydrochemistry; nutrients; phosphorus; pollution load; sand; sandy clay loam soils; snowmelt; spring; subsurface drainage; surface water; suspended sediment; tile drainage; water flow; Indiana; Minnesota
- Abstract:
- ... Open surface inlets that connect to subsurface tile drainage systems provide a direct pathway for movement of sediment, nutrients, and agrochemicals to surface waters. This study was conducted to determine the reduction in drainage effluent total suspended sediment (TSS) and phosphorus (P) concentrations and loads when open surface inlets were replaced with blind (in gravel capped with 30 cm of so ...
- Handle:
- 10113/60620
- DOI:
- 10.2134/jeq2014.05.0219
- https://doi.org/10.2134/jeq2014.05.0219
- Author:
- Emily Bock; Nick Smith; Mark Rogers; Brady Coleman; Mark Reiter; Brian Benham; Zachary M. Easton
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 605-613
- ISSN:
- 0047-2425
- Subject:
- agricultural soils; analysis of variance; application rate; biochar; bioreactors; denitrification; denitrifying microorganisms; drainage; feedstocks; greenhouse gas emissions; greenhouse gases; leaching; nitrate nitrogen; nitrates; nitrous oxide; organic carbon; particle size; phosphates; phosphorus; wood chips
- Abstract:
- ... Denitrifying bioreactors (DNBRs) are an emerging technology used to remove nitrate-nitrogen (NO₃⁻) from enriched waters by supporting denitrifying microorganisms with organic carbon in an anaerobic environment. Field-scale investigations have established successful removal of NO₃⁻ from agricultural drainage, but the potential for DNBRs to remediate excess phosphorus (P) exported from agricultural ...
- DOI:
- 10.2134/jeq2014.03.0111
- https://doi.org/10.2134/jeq2014.03.0111
- Author:
- Michelle L. McCrackin; John A. Harrison; Jana E. Compton
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 345-355
- ISSN:
- 0047-2425
- Subject:
- ammonia; coasts; cropland; emissions; human population; models; nitrogen; nitrogen oxides; nutrient management; nutrient use efficiency; pollution control; pollution load; population growth; runoff; sewage; surface area; water quality; watersheds; United States
- Abstract:
- ... Nitrogen (N) fluxes generated by an increasing human population have the potential to increase coastal riverine N loading, with implications for areas already degraded by elevated nutrient loads. Here we examine contemporary (year 2005) and future (year 2030) loading of total dissolved N (TDN) in the continental United States using the Nutrient Export from WaterSheds model (NEWS2US–TDN). Model-der ...
- DOI:
- 10.2134/jeq2014.02.0081
- https://doi.org/10.2134/jeq2014.02.0081
- Author:
- Hans J. M. van Grinsven; Lex Bouwman; Kenneth G. Cassman; Harold M. van Es; Michelle L. McCrackin; Arthur H. W. Beusen
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 356-367
- ISSN:
- 0047-2425
- Subject:
- European Union; air; ammonia; aquatic environment; crop production; emissions; fertilizer application; issues and policy; livestock production; models; nitrates; nitrogen; nutrient use efficiency; pollution load; recycling; soil; soybeans; water quality; Gulf of Mexico; Mississippi
- Abstract:
- ... Historical trends and levels of nitrogen (N) budgets and emissions to air and water in the European Union and the United States are markedly different. Agro-environmental policy approaches also differ, with emphasis on voluntary or incentive-based schemes in the United States versus a more regulatory approach in the European Union. This paper explores the implications of these differences for atta ...
- DOI:
- 10.2134/jeq2014.03.0102
- https://doi.org/10.2134/jeq2014.03.0102
- Author:
- J. M. Powell; C. A. Rotz
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 336-344
- ISSN:
- 0047-2425
- Subject:
- ammonia; corn silage; cows; crop yield; cropping systems; crude protein; dairy farming; emissions; environmental impact; excretion; farms; field experimentation; milk production; nitrates; nitrogen; nitrogen fertilizers; nitrous oxide; nutrient use efficiency; nutrition; production technology; simulation models; stocking rate
- Abstract:
- ... In dairy production systems, tradeoffs can occur between fertilizer N applications and crop N use, feed N consumption and manure N excretion, and environmental impacts. This paper examines (i) how stocking rates affect N imports and management on dairy farms, N use efficiency (NUE; i.e., the amount of applied N incorporated into product N), and N loss; (ii) how reductions in fertilizer N and feed ...
- Handle:
- 10113/62909
- DOI:
- 10.2134/jeq2014.07.0299
- https://doi.org/10.2134/jeq2014.07.0299
- Author:
- Zekarias M. Ogbazghi; Eyob H. Tesfamariam; John G. Annandale; Petrus C. De Jager
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 655-667
- ISSN:
- 0047-2425
- Subject:
- EDTA (chelating agent); agricultural land; arid lands; cadmium; corn; crop rotation; crops; irrigation; lead; nickel; phytotoxicity; plant tissues; sludge; soil profiles; water solubility; zinc
- Abstract:
- ... Sludge application to agricultural lands is often limited mainly because of concerns about metal accumulation in soils and uptake by crops. The objective of the study was to test the following hypotheses: (i) in the short to medium term (5–10 yr), the application of good-quality sludge according to crop N requirements will not lead to significant accumulation of water-soluble metal fractions in so ...
- DOI:
- 10.2134/jeq2014.06.0261
- https://doi.org/10.2134/jeq2014.06.0261
- Author:
- Marek K. Jarecki; Jerry L. Hatfield; Wiley Barbour
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 431-441
- ISSN:
- 0047-2425
- Subject:
- application rate; atmospheric precipitation; corn; crop yield; databases; denitrification; fertilizer application; field experimentation; gas emissions; models; nitrogen; nitrogen fertilizers; nitrous oxide; organic matter; organic soils; soil texture; Corn Belt region; Iowa
- Abstract:
- ... The U.S. Corn Belt area has the capacity to generate high nitrous oxide (N₂O) emissions due to medium to high annual precipitation, medium- to heavy-textured soils rich in organic matter, and high nitrogen (N) application rates. The purpose of this work was to estimate N₂O emissions from cornfields in Iowa at the county level using the DeNitrification-DeComposition (DNDC) model and to compare the ...
- Handle:
- 10113/6563656
- DOI:
- 10.2134/jeq2014.03.0100
- https://doi.org/10.2134/jeq2014.03.0100
- Author:
- Peter J. A. Kleinman; Douglas R. Smith; Carl H. Bolster; Zachary M. Easton
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 460-466
- ISSN:
- 0047-2425
- Subject:
- animal manure management; case studies; cover crops; drainage; drainage water; fate and transport models; nonpoint source pollution; nutrient management; phosphorus; pollution load; preferential flow; soil; tile drainage; tillage; vegetation; watersheds; Europe; New Zealand; North America
- Abstract:
- ... Phosphorus (P) losses in agricultural drainage waters, both surface and subsurface, are among the most difficult form of nonpoint source pollution to mitigate. This special collection of papers on P in drainage waters documents the range of field conditions leading to P loss in drainage water, the potential for drainage and nutrient management practices to control drainage losses of P, and the abi ...
- DOI:
- 10.2134/jeq2015.02.0090
- https://doi.org/10.2134/jeq2015.02.0090
- Author:
- Kevin W. King; Mark R. Williams; Merrin L. Macrae; Norman R. Fausey; Jane Frankenberger; Douglas R. Smith; Peter J. A. Kleinman; Larry C. Brown
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 467-485
- ISSN:
- 0047-2425
- Subject:
- agricultural land; base flow; climatic factors; cropping systems; eutrophication; phosphorus; pollution load; preferential flow; runoff; seasonal variation; soil properties; sorption; subsurface drainage; surface water; tillage; water management; water quality; watersheds
- Abstract:
- ... Phosphorus (P) loss from agricultural fields and watersheds has been an important water quality issue for decades because of the critical role P plays in eutrophication. Historically, most research has focused on P losses by surface runoff and erosion because subsurface P losses were often deemed to be negligible. Perceptions of subsurface P transport, however, have evolved, and considerable work ...
- DOI:
- 10.2134/jeq2014.04.0163
- https://doi.org/10.2134/jeq2014.04.0163
- Author:
- David R. Kanter; Xin Zhang; Denise L. Mauzerall
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 325-335
- ISSN:
- 0047-2425
- Subject:
- air; air pollution; climate change; corn; cost benefit analysis; decision making; economic impact; ecosystem services; energy costs; expert opinion; farmers; fertilizer industry; fertilizers; issues and policy; models; nitrogen; nutrient use efficiency; ozone depletion; pollution control; profitability; profits and margins; stratosphere; time series analysis; water pollution; China; United States
- Abstract:
- ... Nitrogen (N) pollution is emerging as one of the most important environmental issues of the 21st Century, contributing to air and water pollution, climate change, and stratospheric ozone depletion. With agriculture being the dominant source, we tested whether it is possible to reduce agricultural N pollution in a way that benefits the environment, reduces farmers’ costs, and increases fertilizer i ...
- DOI:
- 10.2134/jeq2014.04.0173
- https://doi.org/10.2134/jeq2014.04.0173
- Author:
- Douglas R. Smith; Kevin W. King; Laura Johnson; Wendy Francesconi; Pete Richards; Dave Baker; Andrew N. Sharpley
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 495-502
- ISSN:
- 0047-2425
- Subject:
- agricultural soils; agrochemicals; algal blooms; basins; crops; drainage; farmers; humid zones; macropore flow; nutrients; phosphorus; pollution control; pollution load; rivers; runoff; soil water; soluble phosphorus; surface water; tile drainage; total phosphorus; water table; watersheds; Indiana; Lake Erie
- Abstract:
- ... The midwestern United States offers some of the most productive agricultural soils in the world. Given the cool humid climate, much of the region would not be able to support agriculture without subsurface (tile) drainage because high water tables may damage crops and prevent machinery usage in fields at critical times. Although drainage is designed to remove excess soil water as quickly as possib ...
- DOI:
- 10.2134/jeq2014.04.0176
- https://doi.org/10.2134/jeq2014.04.0176
- Author:
- Lars Bergström; Holger Kirchmann; Faruk Djodjic; Katarina Kyllmar; Barbro Ulén; Jian Liu; Helena Andersson; Helena Aronsson; Gunnar Börjesson; Pia Kynkäänniemi; Annika Svanbäck; Ana Villa
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 512-523
- ISSN:
- 0047-2425
- Subject:
- agricultural land; agricultural soils; ammonium lactate; best management practices; catch crops; clay soils; constructed wetlands; cropping systems; eutrophication; leaching; liming; losses from soil; manure spreading; mineral fertilizers; monitoring; nutrient use efficiency; phosphorus; pig manure; soil fertility; surface water; total phosphorus; water quality; watersheds; weather
- Abstract:
- ... Transport of phosphorus (P) from agricultural fields to water bodies deteriorates water quality and causes eutrophication. To reduce P losses and optimize P use efficiency by crops, better knowledge is needed of P turnover in soil and the efficiency of best management practices (BMPs). In this review, we examined these issues using results from 10 Swedish long-term soil fertility trials and variou ...
- DOI:
- 10.2134/jeq2014.04.0165
- https://doi.org/10.2134/jeq2014.04.0165
- Author:
- Kevin W. King; Mark R. Williams; Norman R. Fausey
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 486-494
- ISSN:
- 0047-2425
- Subject:
- water pollution; algal blooms; freshwater; winter; fields; ecosystem services; surface water; best management practices; spring; losses from soil; streams; watersheds; summer; tile drainage; phosphorus; application rate; Ohio
- Abstract:
- ... Phosphorus (P) transport from agricultural fields continues to be a focal point for addressing harmful algal blooms and nuisance algae in freshwater systems throughout the world. In humid, poorly drained regions, attention has turned to P delivery through subsurface tile drainage. However, research on the contributions of tile drainage to watershed-scale P losses is limited. The objective of this ...
- Handle:
- 10113/61311
- DOI:
- 10.2134/jeq2014.04.0149
- https://doi.org/10.2134/jeq2014.04.0149
- Author:
- Johnny R. Soares; Heitor Cantarella; Vitor P. Vargas; Janaina B. Carmo; Acácio A. Martins; Rafael M. Sousa; Cristiano A. Andrade
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 423-430
- ISSN:
- 0047-2425
- Subject:
- application rate; biofuels; biomass production; dicyandiamide; ecosystem services; fertilizer application; field experimentation; greenhouse gas emissions; nitrification inhibitors; nitrogen; nitrogen fertilizers; nitrous oxide; phosphates; pyrazoles; slow-release fertilizers; sugarcane; total nitrogen; urea; Brazil
- Abstract:
- ... The environmental benefits of producing biofuels from sugarcane have been questioned due to greenhouse gas emissions during the biomass production stage, especially nitrous oxide (N₂O) associated with nitrogen (N) fertilization. The objective of this work was to evaluate the use of nitrification inhibitors (NIs) dicyandiamide (DCD) and 3,4 dimethylpyrazole phosphate (DMPP) and a controlled-release ...
- DOI:
- 10.2134/jeq2014.02.0096
- https://doi.org/10.2134/jeq2014.02.0096
- Author:
- Richard W. McDowell; Ross M. Monaghan
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 545-551
- ISSN:
- 0047-2425
- Subject:
- Podzols; dairy farming; drainage; drainage systems; fertilizers; forage; milk production; mineralization; organic soils; pastures; phosphorus; risk; shrublands; soil profiles; soil sampling; sorption; surface water; tillage; winter
- Abstract:
- ... With the installation of artificial drainage and large inputs of lime and fertilizer, dairy farming can be profitable on marginal land. We hypothesized that this will lead to large phosphorus (P) losses and potential surface water impairment if the soil has little capacity to sorb added P. Phosphorous was measured in drainage from three “marginal” soils used for dairying: an Organic soil that had ...
- DOI:
- 10.2134/jeq2014.04.0160
- https://doi.org/10.2134/jeq2014.04.0160
- Author:
- Eric A. Davidson; Emma C. Suddick; Charles W. Rice; Linda S. Prokopy
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 305-311
- ISSN:
- 0047-2425
- Subject:
- agronomists; animal production; continuing education; decision making; economic feasibility; economists; experts; extension agents; farmers; farms; human health; human nutrition; human resources; issues and policy; molybdenum; nitrogen fertilizers; nongovernmental organizations; nutrient management; nutrient use efficiency; pollution; private sector; production technology; scientists; social factors; sociologists; sustainable agriculture
- Abstract:
- ... Synthetic nitrogen fertilizer has been a double-edged sword, greatly improving human nutrition during the 20th century but also posing major human health and environmental challenges for the 21st century. In August 2013, about 160 agronomists, scientists, extension agents, crop advisors, economists, social scientists, farmers, representatives of regulatory agencies and nongovernmental organization ...
- DOI:
- 10.2134/jeq2015.02.0078
- https://doi.org/10.2134/jeq2015.02.0078
- Author:
- Mark B. David; Courtney G. Flint; Lowell E. Gentry; Mallory K. Dolan; George F. Czapar; Richard A. Cooke; Tito Lavaire
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 368-381
- ISSN:
- 0047-2425
- Subject:
- bioreactors; conservation practices; corn; cover crops; drainage water; engineering; ethics; farmers; fertilizers; interviews; issues and policy; landowners; monitoring; nitrate nitrogen; nitrate reduction; nitrates; nitrogen; pollution load; production technology; rivers; social sciences; soybeans; surveys; tile drainage; water management; water quality; watersheds; wetlands; wood chips; Illinois; Mississippi River
- Abstract:
- ... Reducing nitrate loads from corn and soybean, tile-drained, agricultural production systems in the Upper Mississippi River basin is a major challenge that has not been met. We evaluated a range of possible management practices from biophysical and social science perspectives that could reduce nitrate losses from tile-drained fields in the Upper Salt Fork and Embarras River watersheds of east-centr ...
- DOI:
- 10.2134/jeq2014.01.0036
- CHORUS:
- 10.2134/jeq2014.01.0036
- https://doi.org/10.2134/jeq2014.01.0036
- Author:
- Kun Han; Peter J.A. Kleinman; Lou S. Saporito; Clinton Church; Joshua M. McGrath; Mark S. Reiter; Shawn C. Tingle; Arthur L. Allen; L.Q. Wang; Ray B. Bryant
- Source:
- Journal of environmental quality 2015 v.44 no.2 pp. 560-571
- ISSN:
- 0047-2425
- Subject:
- agricultural soils; coastal plains; drying; irrigation; leachates; leaching; macropore flow; macropores; nitrogen; no-tillage; nutrients; phosphorus; soil texture; subsoil; urea; water quality; Eastern United States
- Abstract:
- ... Leaching of nutrients through agricultural soils is a priority water quality concern on the Atlantic Coastal Plain. This study evaluated the effect of tillage and urea application on leaching of phosphorus (P) and nitrogen (N) from soils of the Delmarva Peninsula that had previously been under no-till management. Intact soil columns (30 cm wide × 50 cm deep) were irrigated for 6 wk to establish a ...
- DOI:
- 10.2134/jeq2014.08.0326
- https://doi.org/10.2134/jeq2014.08.0326