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Volume 2 Issue 1, 2017, in progress

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    • Allison M. Thomson, Stewart Ramsey, Ed Barnes, Bruno Basso, Marlen Eve, Sasha Gennet, Patricio Grassini, Brandon Kliethermes, Marty Matlock, Eileen McClellen, Ed Spevak, Clifford S. Snyder, Mark D. Tomer, Chris van Kessel, Tristram West and Grant Wick
      Science in the Supply Chain: Collaboration Opportunities for Advancing Sustainable Agriculture in the United States
      Core Ideas
      • Sustainability indicators for US agriculture demonstrate improvement since 1980.
      • Emerging multi-stakeholder initiatives are seeking to drive further improvement.
      • Collaboration with the scientific community is key to achieving improvements.
      Agricultural & Environmental Letters 2017 2:170015
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    • Brad Barham, Irwin Goldman, Jordan van Rijn, Jeremy Foltz and Maria Isabella Agnes
      Land-Grant University Faculty Attitudes in and Engagement with Open Source Scholarship and Commercialization
      Core Ideas
      • The push for open source/open access science recalls the formation of land grant universities.
      • A 2016 LGU faculty survey revealed strong support for open source/open access science.
      • Most based research choices around scientific curiosity than commercialization potential.
      • Plant scientists had the highest reliance on licensing revenues but still only 3% of total lab revenues.
      • It may be time to reassess the research model of public universities.
      Agricultural & Environmental Letters 2017 2:170008
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    • M. A. Liebig, J. E. Herrick, D. W. Archer, J. Dobrowolski, S. W. Duiker, A. J. Franzluebbers, J. R. Hendrickson, R. Mitchell, A. Mohamed, J. Russell and T. C. Strickland
      Aligning Land Use with Land Potential: The Role of Integrated Agriculture
      Core Ideas
      • Agricultural lands have varying potential based on climate, topography, and soils.
      • Aligning land use and potential improves sustainable delivery of ecosystem services.
      • Integrated agricultural systems (IAS) are uniquely adapted to variable land types.
      • Socioeconomic barriers to IAS implementation are significant.
      • Considerable research and education is needed to facilitate IAS adoption.
      Agricultural & Environmental Letters 2017 2:170007
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    • T. W. Shaddox, C. D. Ryan and K. Tang
      Reference Ranges: A Novel Interpretation of Turfgrass Nutrient Values
      Core Ideas
      • Plant tissue tests are interpreted using yield as a metric.
      • Turfgrass value is commonly measured using quality.
      • Reference ranges identify “normal” nutrient ranges by using turf quality as a metric.
      • Reference ranges should be considered as an alternative tissue test interpretation.
      Agricultural & Environmental Letters 2017 2:160046
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    • Clinton Church, John Spargo and Sarah Fishel
      Strong Acid Extraction Methods for “Total Phosphorus” in Soils: EPA Method 3050B and EPA Method 3051
      Core Ideas
      • Many agricultural labs have added environmental tests to their repertoire of protocols.
      • These labs test various media (soils, waste residuals, manures, and runoff waters) for P.
      • Almost no rigorous comparisons indicate what methods are best suited for this purpose.
      • We compared EPA 3050B and 3051 (with/without HCl) on various acidic and alkaline soils.
      • Both EPA 3050B and EPA 3051 gave reliable and comparable results.
      Agricultural & Environmental Letters 2017 2:160037
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    • Rebecca B. Neumann, Angelia L. Seyfferth, Jennifer Teshera-Levye and Joseph Ellingson
      Soil Warming Increases Arsenic Availability in the Rice Rhizosphere
      Core Ideas
      • Arsenic is a common contaminant in rice, threatening yield and human health.
      • Climate warming could alter availability and plant uptake of arsenic.
      • Arsenic concentrations in porewater and plant tissue increased with soil warming.
      • Grain arsenic concentrations were not significantly affected by soil temperature.
      • Future studies should explore links between climate conditions and arsenic uptake by rice.
      Agricultural & Environmental Letters 2017 2:170006
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    • Emily W. Duncan, Kevin W. King, Mark R. Williams, Greg LaBarge, Lindsay A. Pease, Douglas R. Smith and Norman R. Fausey
      Linking Soil Phosphorus to Dissolved Phosphorus Losses in the Midwest
      Core Ideas
      • Soil test phosphorus remains an important factor in studying dissolved reactive P loss.
      • Identifying higher risk fields with STP could inform future management practices to reduce DRP loss.
      • STP was linearly related to DRP concentration loads in tile-drained fields.
      • Monitoring STP in addition to implementing other BMPs should be considered to decrease DRP loss.
      Agricultural & Environmental Letters 2017 2:170004
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    • W. C. Kreuser, J. R. Young and M. D. Richardson
      Modeling Performance of Plant Growth Regulators
      Core Ideas
      • Growing degree day models continue to predict plant growth regulator performance in turfgrass.
      • Data collection should occur until the growth response has dissipated, not based on predefined intervals.
      • Including a dampening coefficient in the sinewave models allows the clipping yield effect to decay with time.
      • Adding a decay coefficient allows sinewave models to fit datasets where a rebound growth phase did not occur.
      Agricultural & Environmental Letters 2017 2:170001
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    • Benjamin R. K. Runkle, James R. Rigby, Michele L. Reba, Saseendran S. Anapalli, Joydeep Bhattacharjee, Ken W. Krauss, Lu Liang, Martin A. Locke, Kimberly A. Novick, Ruixiu Sui, Kosana Suvočarev and Paul M. White Jr.
      Delta-Flux: An Eddy Covariance Network for a Climate-Smart Lower Mississippi Basin
      Core Ideas
      • The Lower Mississippi River Basin (LMRB) is agriculturally important and ecologically unique.
      • The Delta-Flux network will coordinate the activities of 17 eddy covariance towers.
      • The network addresses the need for scaled C and water cycle observations.
      • The network aims to promote sustainable, climate-smart land management.
      • Delta-Flux is open to collaborators from strategic sites and relevant disciplines.
      Agricultural & Environmental Letters 2017 2:170003
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    • E. W. Duncan, P. J. A. Kleinman, D. B. Beegle and C. A. Rotz
      Coupling Dairy Manure Storage with Injection to Improve Nitrogen Management: Whole-Farm Simulation Using the Integrated Farm System Model
      Core Ideas
      • Manure storage and injection strategies were simulated using the Integrated Farming Systems Model.
      • Strategies were verified using field data.
      • We compared manure storage in environmental and economic model outputs.
      • Introducing 6 mo of storage on a PA dairy farm decreased whole-farm NUE without manure injection.
      • Manure injection and 6 mo of storage gave the best combination of profit and environmental outcome.
      Agricultural & Environmental Letters 2017 2:160048
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    • Zhongqi He, Hailin Zhang, Haile Tewolde and Mark Shankle
      Chemical Characterization of Cotton Plant Parts for Multiple Uses
      Core Ideas
      • Cotton plant parts can be used for multiple purposes depending on their compositions.
      • Cotton stems with less ash are better suited for lignocellulosic feedstock of bioenergy and bio-products.
      • Feed quality characteristics of cottonseed are comparable to those of forage crops.
      Agricultural & Environmental Letters 2017 2:110044
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    • Marty R. Schmer, Rachael M. Brown, Virginia L. Jin, Robert B. Mitchell and Daren D. Redfearn
      Corn Residue Use by Livestock in the United States
      Core Ideas
      • USDA-ERS surveyed 2250 producers from 19 states on corn residue grazing and mechanical harvests in 2010.
      • Approximately 4.06 million ha was grazed by 11.7 million head of livestock.
      • Approximately 0.81 million ha of corn residue was mechanically harvested in 2010.
      • Corn residue is a significant resource for integrated crop–livestock systems in the western Corn Belt.
      Agricultural & Environmental Letters 2017 2:160043
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