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Volume 1 Issue 1, 2016



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  • LETTERS TO THE EDITOR up

    • S. D. Logsdon
      Publish Unexpected Results That Conflict with Assumptions
      Core Ideas
      • Publish results that conflict with current assumptions.
      • Look beyond current fads.
      • Break with discredited, but popular, assumptions.
      doi:10.2134/ael2015.10.0007
      Agricultural & Environmental Letters 2016 1:150007
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  • COMMENTARY up

    • Daren Redfearn, Jay Parsons and Mary Drewnoski
      Multidisciplinary Research and Extension Team Evolution: Processes, Outcomes, and Strategies
      Core Ideas
      • Decision makers in production agriculture synthesize information from multiple disciplines.
      • Research and extension institutions mainly deliver information from a primary discipline perspective to decision makers.
      • Government and academia recognize the importance of multidisciplinary research and extension teams.
      • Developing successful multidisciplinary research and extension teams is challenging.
      • There are no proven metrics yet to measure goal achievement or models that support growth.
      doi:10.2134/ael2016.10.0042
      Agricultural & Environmental Letters 2016 1:160042
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    • Andrew Sharpley, Peter Kleinman, Helen Jarvie and Don Flaten
      Distant Views and Local Realities: The Limits of Global Assessments to Restore the Fragmented Phosphorus Cycle
      Core Ideas
      • Meta-analysis of “big data” can identify P disconnects in P cycles, stocks and flows.
      • Understanding of farming realities is needed to identify root causes of change.
      • Access to “big data” without grounding in reality can lead to misleading conclusions.
      • Researchers must ensure production and conservation tactics consider farming realities.
      doi:10.2134/ael2016.07.0024
      Agricultural & Environmental Letters 2016 1:160024
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    • Travis W. Gannon and Matthew L. Polizzotto
      MSMA: Knowledge Gaps to Aid Appropriate Regulation of an Efficacious Herbicide
      Core Ideas
      • MSMA is an arsenic-based herbicide currently registered in cotton and turfgrass.
      • Will continued MSMA use threaten human and environmental health?
      • Discrepancies about environmental fate exist among field and laboratory research.
      • Factors that influence As species transformation should be further elucidated.
      • Management plans should be devised where MSMA is used.
      doi:10.2134/ael2016.07.0025
      Agricultural & Environmental Letters 2016 1:160025
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    • Heidi L. Sieverding, David E. Clay, Eakalak Khan, Jayaraman Sivaguru, Mahesh Pattabiraman, Ranjit T. Koodali, Mafany Ndiva-Mongoh and James J. Stone
      A Sustainable Rural Food–Energy–Water Nexus Framework for the Northern Great Plains
      Core Ideas
      • Rural food–energy–water nexus sustainability is a wicked problem with no easy solution.
      • Rural areas are net exporters of products.
      • Sustainability must begin at the source of the supply chain—the farm, ranch, mine, or well.
      • Rural areas have strengths, critical vulnerabilities, opportunities, and threats.
      • Regional threshold indicators can be used to prevent tipping points and avoid system collapse.
      doi:10.2134/ael2016.02.0008
      Agricultural & Environmental Letters 2016 1:160008
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  • RESEARCH LETTERS up

    • Rintaro Kinoshita, Harold van Es, John Dantinne and Mike Twining
      Within-Field Profitability Analysis Informs Agronomic Management Decisions in the Mid-Atlantic USA
      Core Ideas
      • Site-specific profitability and yield constraint information can inform future management.
      • Removing consistently unprofitable areas can increase overall field profitability.
      • Temporally variable profitability areas may benefit from site-specific in-season management.
      doi:10.2134/ael2016.09.0034
      Agricultural & Environmental Letters 2016 1:160034
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    • Megan A. Reavis and Brian E. Haggard
      Are Floodplain Soils a Potential Phosphorus Source When Inundated That Can Be Effectively Managed?
      Core Ideas
      • Dissolved phosphorus is released from floodplain soils when inundated.
      • Phosphorus release rates are positively correlated with soil test and water-extractable P in soil.
      • Water treatment residuals decrease P release rates, providing a potential mitigation option.
      doi:10.2134/ael2016.09.0036
      Agricultural & Environmental Letters 2016 1:160036
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    • Zachariah P. Zopp, Jeremy M. Olstadt, K. G. Karthikeyan, Anita M. Thompson and Sharon C. Long
      Cryptosporidium Soil Extraction by Filtration/IMS/FA Compatible with USEPA Method 1623.1
      Core Ideas
      • Cryptosporidium extraction from the soil matrix is absent in USEPA Method 1623.1.
      • Our S3PEG soil extraction is compatible with USEPA Method 1623.1.
      • S3PEG extraction meets quality control recoveries specified by USEPA Method 1623.1.
      • Irradiated Cryptosporidium oocysts are suitable soil surrogate for live oocysts.
      doi:10.2134/ael2016.08.0031
      Agricultural & Environmental Letters 2016 1:160031
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    • Kyle R. Elkin, Tamie L. Veith, Haiming Lu, Sarah C. Goslee, Anthony R. Buda, Amy S. Collick, Gordon J. Folmar, Peter J. A. Kleinman and Ray B. Bryant
      Declining Atmospheric Sulfate Deposition in an Agricultural Watershed in Central Pennsylvania, USA
      Core Ideas
      • Sulfate concentrations in an agriculturally dominated watershed respond to atmospheric deposition inputs.
      • Rough budget estimates in the watershed suggest a depletion of the sulfur pool.
      • Agricultural practices do not seem to mask effects of atmospheric deposition.
      doi:10.2134/ael2016.09.0039
      Agricultural & Environmental Letters 2016 1:160039
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    • S. Leanne Dillard, Aimee N. Hafla, Melissa D. Rubano, Robert C. Stout, André F. Brito and Kathy J. Soder
      Evaluation of a Rising Plate Meter for Use in Multispecies Swards
      Core Ideas
      • The accuracy of rising plate meter in multispecies swards has not been tested thoroughly.
      • Forcing X intercept to zero increases the precision of the calibration equations.
      • Higher-order polynomial regressions do not result in more accurate forage estimates.
      doi:10.2134/ael2016.08.0032
      Agricultural & Environmental Letters 2016 1:160032
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    • Robert J. Hijmans, Hyeyeong Choe and Joshua Perlman
      Spatiotemporal Patterns of Field Crop Diversity in the United States, 1870–2012
      Core Ideas
      • Field crop diversity in the US peaked between 1940 and 1960.
      • Current levels of field crop diversity are similar to what they were in 1900.
      • Field crop diversity in the Midwest has been very low throughout the past 142 years.
      doi:10.2134/ael2016.05.0022
      Agricultural & Environmental Letters 2016 1:160022
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    • Kent J. Bradford, Peetambar Dahal and Pedro Bello
      Using Relative Humidity Indicator Paper to Measure Seed and Commodity Moisture Contents
      Core Ideas
      • Low seed and commodity moisture contents are critical for safe storage.
      • Equipment for measuring moisture content is often unavailable in rural locations.
      • Commodity moisture content and equilibrium relative humidity are uniquely related.
      • Relative humidity can be measured easily using electronic meters or indicator paper.
      • Commodity moisture content can be conveniently measured using such indicator strips.
      doi:10.2134/ael2016.04.0018
      Agricultural & Environmental Letters 2016 1:160018
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    • Rogier P. O. Schulte, Lilian O’Sullivan, Cait Coyle, Niall Farrelly, Carsten Gutzler, Gary Lanigan, Gemma Torres-Sallan and Rachel E. Creamer
      Exploring Climate-Smart Land Management for Atlantic Europe
      Core Ideas
      • Managing soil organic carbon is an essential aspect of climate-smart agriculture.
      • Combining component research, we derive a soil carbon management concept for Ireland.
      • Optimized soil carbon management is differentiated in accordance with soil type.
      • Existing policy tools can be tailored to incentivize climate-smart land management.
      doi:10.2134/ael2016.07.0029
      Agricultural & Environmental Letters 2016 1:160029
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    • Zhongqi He, Mingchu Zhang, Aiqin Zhao, O. Modesto Olanya, Robert P. Larkin and C. Wayne Honeycutt
      Quantity and Nature of Water-Extractable Organic Matter from Sandy Loam Soils with Potato Cropping Management
      Core Ideas
      • 2- and 3-yr potato crop rotations did not increase the levels of water-extractable organic matter (OM).
      • Potato crop rotation increased the less humified portions.
      • Irrigation stimulated decomposition of non-potato crop residues.
      • Irrigation increased levels of water-extractable OM in potato crop rotation soils.
      • Composted manure addition increased water-extractable low molecular mass and less humified OM.
      doi:10.2134/ael2016.06.0023
      Agricultural & Environmental Letters 2016 1:160023
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    • Jeff Brick, Silke Nebel, Van Lantz and Ryan Trenholm
      Declining Education Levels in Young Male Farmers in Southwestern Ontario
      Core Ideas
      • Education level is declining in young male farmers but not female farmers.
      • Interactions between variables can be key for understanding environmental behavior.
      • This education trends needs to factor into the design of agri-environmental programs.
      doi:10.2134/ael2016.02.0005
      Agricultural & Environmental Letters 2016 1:160005
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    • Silja V. Hund, Mark S. Johnson and Tom Keddie
      Developing a Hydrologic Monitoring Network in Data-Scarce Regions Using Open-Source Arduino Dataloggers
      Core Ideas
      • An innovative low-cost open-source Arduino-based datalogger was developed.
      • The datalogger was deployed for hydrologic monitoring in tropical watersheds.
      • Arduino datalogger performance was robust after overcoming initial challenges.
      • The system has great potential for automated continuous environmental monitoring.
      doi:10.2134/ael2016.02.0011
      Agricultural & Environmental Letters 2016 1:160011
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    • James A. McCarty and Brian E. Haggard
      Can We Manage Nonpoint-Source Pollution Using Nutrient Concentrations during Seasonal Baseflow?
      Core Ideas
      • Nutrient concentrations in streams are positively correlated during baseflow and runoff conditions.
      • High nutrient concentrations at baseflow suggest high nutrient loads from nonpoint sources.
      • Manage nonpoint sources by targeting subwatersheds with elevated nutrient concentrations during baseflow.
      • Focusing on baseflow conditions frees up resources to monitor water quality more broadly across watersheds.
      doi:10.2134/ael2016.03.0015
      Agricultural & Environmental Letters 2016 1:160015
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    • Toshiki Iwasaki, Seiichiro Kuroda, Hirotaka Saito, Yukio Tobe, Kohei Suzuki, Haruyuki Fujimaki and Mitsuhiro Inoue
      Monitoring Infiltration Process Seamlessly Using Array Ground Penetrating Radar
      Core Ideas
      • Array GPR can be used to monitor infiltration into sand dune seamlessly.
      • Array GPR enables sequentially acquired multi-offset gather data.
      • Array GPR data agree well with data measured independently with soil moisture sensors.
      doi:10.2134/ael2016.01.0002
      Agricultural & Environmental Letters 2016 1:160002
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    • Jerry L. Hatfield
      Increased Temperatures Have Dramatic Effects on Growth and Grain Yield of Three Maize Hybrids
      Core Ideas
      • Projected Corn Belt temps by the end of the 21st century increase the rate of phenological development.
      • Temperature increases reduce grain production but not vegetative production.
      • There were differences in corn hybrid response to yield impacts.
      doi:10.2134/ael2015.10.0006
      Agricultural & Environmental Letters 2016 1:150006
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    • Aditi Sengupta and Warren A. Dick
      A priori Considerations When Conducting High-Throughput Amplicon-Based Sequence Analysis
      Core Ideas
      • High-throughput sequence analysis of microbes is gaining popularity.
      • Researchers in agronomy, soil, crop, and environmental sciences are interested in such analyses.
      • We briefly discuss a priori considerations to guide such researchers.
      • Developing successful research questions, experiments, and data analysis is the goal.
      doi:10.2134/ael2015.11.0010
      Agricultural & Environmental Letters 2016 1:150010
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    • Jian Liu, Peter J. A. Kleinman, Douglas B. Beegle, Curtis J. Dell, Tamie L. Veith, Lou S. Saporito, Kun Han, Dan H. Pote and Ray B. Bryant
      Subsurface Application Enhances Benefits of Manure Redistribution
      Core Ideas
      • Manure redistribution adds fertility benefits to recipient fields.
      • Subsurface application of poultry litter has environmental benefits.
      • Redistribution plus subsurface application benefits both farmers and the environment.
      doi:10.2134/ael2015.09.0003
      Agricultural & Environmental Letters 2016 1:150003
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    • Alan J. Franzluebbers
      Should Soil Testing Services Measure Soil Biological Activity?
      Core Ideas
      • Soil biological activity is a key indicator for productivity and environmental quality.
      • The flush of CO2 possesses many qualities of a robust soil test.
      • Field calibration is underway to relate the flush of CO2 to nitrogen availability.
      doi:10.2134/ael2015.11.0009
      Agricultural & Environmental Letters 2016 1:150009
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    • Rachhpal S. Jassal, Cameron Webster, T. Andrew Black, Iain Hawthorne and Mark S. Johnson
      Simultaneous Measurements of Soil CO 2 and CH 4 Fluxes Using Laser Absorption Spectroscopy
      Core Ideas
      • A method for simultaneous measurements of soil CO2 and CH4 fluxes is presented.
      • A laser-based cavity ring-down spectrometer is coupled to automated chambers.
      • A differential equation is solved for the small flow that is exhausted.
      • The system allowed using linear fit to mixing ratio versus chamber closure time.
      • Veff increased by 7% due to GHG adsorption and 4% due to soil porosity.
      doi:10.2134/ael2015.12.0014
      Agricultural & Environmental Letters 2016 1:150014
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    • Aaron L. M. Daigh and Aaron W. Klaustermeier
      Approaching Brine Spill Remediation from the Surface: A New In Situ Method
      Core Ideas
      • In situ remediation of brine spills is possible via surface extraction of salts.
      • A crystallization inhibitor allowed for 29 to 57% of salts to be harvested from the soil surface.
      • Methods for surface extraction of salts can aid in expediting brine spill remediation timelines.
      doi:10.2134/ael2015.12.0013
      Agricultural & Environmental Letters 2016 1:150013
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    • Douglas R. Smith, R. Daren Harmel, Mark Williams, Richard Haney and Kevin W. King
      Managing Acute Phosphorus Loss with Fertilizer Source and Placement: Proof of Concept
      Core Ideas
      • Up to 19% of common commercial P fertilizer applied to soil can be lost via runoff.
      • Liquid fertilizers or banding fertilizers 1 cm below the surface can reduce P loss.
      • Inherent fertility inefficiencies must be balanced with water quality concerns.
      doi:10.2134/ael2015.12.0015
      Agricultural & Environmental Letters 2016 1:150015
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