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Volume 82 Issue 2, March-April 2018



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  • METHODS SUMMARY up

    • J. Herrero, O. Artieda and D.C. Weindorf
      The Determination of Gypsum in Soils
      Core Ideas
      • We presented in Methods of Soil Analysis three easy methods for gypsum determination.
      • Two of these methods are gravimetric and only need elementary lab equipment.
      • The other method based on portable spectroscopy works in the lab and in the field.
      doi:10.2136/sssaj2017.12.0429
      Soil Science Society of America Journal 2018 82:293-294
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  • SOIL SCIENCE ISSUE up

    • Eric C. Brevik, Karen L. Vaughan, Sanjai J. Parikh, Holly Dolliver, David Lindbo, Joshua J. Steffan, David C. Weindorf, Paul McDaniel, Monday Mbila and Susan Edinger-Marshall
      Trends in Undergraduate Soil Science Education at Selected Universities in the USA from 2009 to 2013
      Core Ideas
      • Enrollment increased in most soil science courses from 2009 to 2013.
      • Students from many different majors took soil science coursework.
      • Total female enrollment increased, but the percentage of female students decreased.
      • Soil judging participation remained consistent.
      • Student to faculty ratio went up between 2009 and 2013.
      doi:10.2136/sssaj2017.10.0346
      Soil Science Society of America Journal 2018 82:295-306
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  • SOIL PHYSICS & HYDROLOGY up

    • X. M. Yang, C. F. Drury and M. R. Reeb
      No-Tillage had Warmer Over-Winter Soil Temperatures than Conventional Tillage in a Brookston Clay Loam Soils in Southwestern Ontario
      Core Ideas
      • Tillage practices on surface soil temperature in the winter months were tested.
      • No-till soil responses slowly to changes of air temperature than tilled soil.
      • Soil temperatures in winter were significantly greater in no-till than tilled soils.
      doi:10.2136/sssaj2017.05.0167
      Soil Science Society of America Journal 2018 82:307-314
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  • SOIL CHEMISTRY up

    • David Bulmer, Gourango Kar, Jordan Hamilton, Steven Siciliano and Derek Peak
      Extent and Mechanism of Interaction between Phosphate and Citrate in a Calcareous Soil
      Core Ideas
      • Modification of Ca levels influences P adsorption.
      • Citrate influences the adsorption equilibrium of P onto soil.
      • Competitive adsorption of citrate and P is primary mechanism of interaction.
      doi:10.2136/sssaj2017.08.0289
      Soil Science Society of America Journal 2018 82:315-322
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      [ Supplement 1 ]
  • SOIL BIOLOGY & BIOCHEMISTRY up

    • Catherine E. Stewart, Damaris L. Roosendaal, Daniel K. Manter, Jorge A. Delgado and Stephen Del Grosso
      Interactions of Stover and Nitrogen Management on Soil Microbial Community and Labile Carbon under Irrigated No-Till Corn
      Core Ideas
      • No-tillage and nitrogen fertilizer may mitigate residue removal impacts on soil microbial biomass.
      • Stover removal decreased soil microbial biomass by 40 to 42%, but did not affect community structure.
      • Residue removal effects on soil microbial biomass were mediated by nutrient limitations.
      • Residue retention and no-tillage are critical to maintaining microbial populations.
      doi:10.2136/sssaj2017.07.0229
      Soil Science Society of America Journal 2018 82:323-331
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    • Amitava Chatterjee, Daniel S. Long and Francis J. Pierce
      Change in Soil Organic Carbon after Five Years of Continuous Winter Wheat or Switchgrass
      Core Ideas
      • Soil carbon sequestration under switchgrass depends on precipitation in semiarid regions.
      • Changes in soil C were limited to the surface soil (15 cm) under switchgrass.
      • Switchgrass and continuous winter wheat had similar biomass and soil carbon.
      doi:10.2136/sssaj2017.08.0290
      Soil Science Society of America Journal 2018 82:332-342
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    • Newton Z. Lupwayi, Derrick A. Kanashiro, Andrea H. Eastman and Xiying Hao
      Soil Phospholipid Fatty Acid Biomarkers and β-Glucosidase Activities after Long-Term Manure and Fertilizer N Applications
      Core Ideas
      • Thirty-five annual manure applications increased soil microbial biomass and activity.
      • Responses occurred mostly in the top 15 cm of soil, with some in the 15- to 30-cm depth
      • The three times recommended application rate had some microbial responses down to 60 cm of soil.
      • Twenty annual fertilizer N applications did not affect soil microbial properties.
      • The microbial properties were positively related to soil organic C.
      doi:10.2136/sssaj2017.09.0340
      Soil Science Society of America Journal 2018 82:343-353
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    • Alan J. Franzluebbers and Richard L. Haney
      Evaluation of Soil Processing Conditions on Mineralizable C and N across a Textural Gradient
      Core Ideas
      • Sieve size did not affect estimation of mineralizable carbon.
      • Capillary wetting of coarse-textured soils inhibited mineralizable carbon.
      • Predicting nitrogen mineralization is possible with short-term carbon mineralization.
      • Nitrogen mineralization was more closely associated with mineralizable carbon in 3 days.
      doi:10.2136/sssaj2017.08.0275
      Soil Science Society of America Journal 2018 82:354-361
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    • Jin-Hyeob Kwak, M. Anne Naeth and Scott X. Chang
      Microbial Activities and Gross Nitrogen Transformation Unaffected by Ten-Year Nitrogen and Sulfur Addition
      Core Ideas
      • Ten years of N and S deposition did not change microbial and enzyme activities.
      • N and S deposition did not affect gross N transformation rates.
      • Gross N mineralization rates were greater than gross nitrification rates.
      • Gross NO3–immobilization rates were greater than gross nitrification rates.
      • Studied soils were still N limited after ten years of N and S deposition.
      doi:10.2136/sssaj2017.11.0384
      Soil Science Society of America Journal 2018 82:362-370
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    • Jun Wang, Xin Fu, Fazhu Zhao and Upendra M. Sainju
      Response of Soil Carbon Fractions and Dryland Maize Yield to Mulching
      Core Ideas
      • Root growth due to mulching may enhance soil C fractions and maize yield.
      • Straw and plastic film mulching effect on soil C fractions and maize yield studied.
      • Plastic film mulching increased maize yield, but reduced soil C fractions.
      • Straw mulching enhanced C fractions and maize yield compared with no mulching.
      • Straw mulching can increase C sequestration, soil health, and dryland maize yield.
      doi:10.2136/sssaj2017.11.0397
      Soil Science Society of America Journal 2018 82:371-381
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  • SOIL FERTILITY & PLANT NUTRITION up

    • Lance S. Conway, Matt A. Yost, Newell R. Kitchen, Kenneth A. Sudduth and Kristen S. Veum
      Cropping System, Landscape Position, and Topsoil Depth Affect Soil Fertility and Nutrient Buffering
      Core Ideas
      • Depth to claypan, landscape position, and cropping system influence soil fertility and nutrient buffering.
      • Accounting for landscape-variable depth to claypan could improve P and K management.
      • Cover crops can help increase soil organic matter content.
      • Cover crops may help reduce P requirements on claypan soils.
      doi:10.2136/sssaj2017.08.0288
      Soil Science Society of America Journal 2018 82:382-391
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    • Ikechukwu Agomoh, Francis Zvomuya, Xiying Hao and Monica Benke
      Modeling Barley Yield in a Dark Brown Chernozem after Discontinuation of Long-term Manure Application
      Core Ideas
      • Soil properties at the discontinuation of manuring adequately explained subsequent grain yield.
      • Soil TOC, TP, TN, and NO3–N were most influential and consistent in explaining yield variability.
      • No evidence of convergence in grain yield among the discontinued manure treatments after 7 yr.
      doi:10.2136/sssaj2017.08.0284
      Soil Science Society of America Journal 2018 82:392-402
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      [ Supplement 1 ]
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  • PEDOLOGY up

    • Jonathan Bakken and Mark H. Stolt
      Mapping Freshwater Subaqueous Soil Resources: Examples from Southern New England
      Core Ideas
      • Soil series were developed for Humaquepts, Frasiwassists, and Psammentic and Aeric Frasiwassents.
      • GPR technology provided accurate analysis of water depth, substrate type, and organic thickness.
      • We identified five soil-landscape units: lakebed, shoals, shoreline, coves, and deepwater.
      doi:10.2136/sssaj2017.08.0276
      Soil Science Society of America Journal 2018 82:403-412
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  • SOIL & WATER MANAGEMENT & CONSERVATION up

    • Wije M. Bandaranayake, Davie M. Kadyampakeni and L. R. Parsons
      Temporal Changes of Soil Water in Sandy Soils Amended with Pine Bark and Efficient Blueberry Irrigation
      Core Ideas
      • Hydraulic properties of soil mixed with pine bark changed rapidly as bark degraded.
      • Soil ρb increased from 0.33 to 0.62 g cm–3 and θfc increased from 7 to 21% in 2 yr.
      • After 2 yr, no change in θfc indicated a constant capillary size porosity in the bark–soil mixture.
      • Root zone depth in the bark–soil mix decreased continually to reduce plant-available water.
      • Sensors help monitor soil-water dynamics that mimic the above changes in bark–soil mixtures.
      doi:10.2136/sssaj2017.05.0141
      Soil Science Society of America Journal 2018 82:413-422
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    • Gary Feng, Ying Ouyang, Ardeshir Adeli, John Read and Johnie Jenkins
      Rainwater Deficit and Irrigation Demand for Row Crops in Mississippi Blackland Prairie
      Core Ideas
      • We investigated the characteristics of rainwater deficit using 122 years’ weather data.
      • We determined irrigation demand for soybean, corn, and cotton in the previous 122 years.
      • We estimated the water requirements of soybean, corn, and cotton in east-central Mississippi.
      • We developed a soil water and irrigation management model with STELLA software for soybean, corn, and cotton in a subhumid climate.
      doi:10.2136/sssaj2017.06.0190
      Soil Science Society of America Journal 2018 82:423-435
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    • Renkuan Liao, Peiling Yang, Zhenhua Wang, Wenyong Wu and Shumei Ren
      Development of a Soil Water Movement Model for the Superabsorbent Polymer Application
      Core Ideas
      • Unstable effects on soil were quantified to obtain time-varying soil hydraulic parameters.
      • Richards’ equation was modified to include the time variable t to simulate soil water movement.
      • Root water uptake was considered in the soil-water movement model as affected by the SAP.
      • A numerical solution was obtained for root water uptake in soil where SAP was applied.
      • Results guide models of soil change from functional exogenous substances used in soil–crop systems.
      doi:10.2136/sssaj2017.05.0164
      Soil Science Society of America Journal 2018 82:436-446
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    • Daili Pan, Xining Zhao, Xiaodong Gao, Yaqian Song, Miles Dyck, Pute Wu, Yinjuan Li and Longshuai Ma
      Application Rate Influences the Soil and Water Conservation Effectiveness of Mulching with Chipped Branches
      Core Ideas
      • Soil and water conservation effectiveness of chipped branches mulching was tested.
      • Two simulated rainfall events were applied in the experimental condition.
      • High application rates may not always be ecologically and economically favorable.
      doi:10.2136/sssaj2017.10.0371
      Soil Science Society of America Journal 2018 82:447-454
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      [ Supplement 1 ]
    • John D. Williams, Catherine L. Reardon, Stewart B. Wuest and Dan S. Long
      Soil Wet Aggregate Stability in Dryland Pacific Northwest Intensified Crop Rotations
      Core Ideas
      • Soil attributes can be improved by intensifying crop rotations in combination with reduced tillage.
      • There was weak evidence that intensifying wheat systems with oilseed crops improves aggregate stability.
      • Reduced tillage produces fewer small class size aggregates that impede infiltration.
      doi:10.2136/sssaj2017.08.0302
      Soil Science Society of America Journal 2018 82:455-462
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      [ Supplement 1 ]
    • Jose L. Rolando, Jose C. B. Dubeux Jr., David A. Ramirez, Martín Ruiz-Moreno, Cecilia Turin Victor Mares, Lynn E. Sollenberger and Roberto Quiroz
      Land Use Effects on Soil Fertility and Nutrient Cycling in the Peruvian High-Andean Puna Grasslands
      Core Ideas
      • A short-term increase in fertility and greater N mineralization were found in agricultural lands.
      • Low plant recovery and soil degradation were found in fallow soils correlated with erosion indexes.
      • In grass-legume mixture pastures, improved soil structure and N build up increased soil fertility.
      • P was found as the limiting nutrient in the studied agroecosystem.
      doi:10.2136/sssaj2017.09.0309
      Soil Science Society of America Journal 2018 82:463-474
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      [ Supplement 1 ]
  • FOREST, RANGE & WILDLAND SOILS up

    • H. Z. Angel, J. P. Stovall, H. M. Williams, K. W. Farrish, B. P. Oswald and J. L. Young
      Surface and Subsurface Tillage Effects on Mine Soil Properties and Vegetative Response
      Core Ideas
      • Mine soil physical properties improve with increased tillage upon reclamation in the Gulf Coastal Plain.
      • Growth of loblolly pine seedlings increases with higher intensity tillage on reclaimed mined land.
      • Aboveground herbaceous cover and biomass increases with tillage on reclaimed mined land.
      doi:10.2136/sssaj2017.09.0329
      Soil Science Society of America Journal 2018 82:475-482
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  • NUTRIENT MANAGEMENT & SOIL & PLANT ANALYSIS up

    • Congming Zou, Robert C. Pearce, John H. Grove, Mark S. Coyne, Edward A. Roualdes and Yan Li
      Stability of Indicators for Net Soil Nitrogen Mineralization in Tobacco Rotation and Tillage Systems
      Core Ideas
      • Relative effects of management on net soil N mineralization were stable across three years.
      • Soil C and N fractions contribute variably to predicting N mineralization in different rotation systems.
      • Soil organic C was the overall best predictor for net N mineralization among tobacco rotation systems.
      doi:10.2136/sssaj2017.08.0263
      Soil Science Society of America Journal 2018 82:483-492
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    • Carl H. Bolster and Peter A. Vadas
      Comparison of Two Methods for Calculating the P Sorption Capacity Parameter in Soils
      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, and existing P-cycling models need further evaluation.
      doi:10.2136/sssaj2017.09.0317
      Soil Science Society of America Journal 2018 82:493-501
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    • Nahuel Ignacio Reussi Calvo, Nicolás Wyngaard, Juan Orcellet, Hernán Rene Sainz Rozas and Hernán Eduardo Echeverría
      Predicting Field-Apparent Nitrogen Mineralization from Anaerobically Incubated Nitrogen
      Core Ideas
      • Study aimed to predict field N mineralization (Nmin) from anaerobically incubated N (Nan).
      • Nan did not predict Nmin in areas with contrasting edaphic-climatic properties.
      • Nmin was predicted by a model including Nan, temperature and rainfall.
      doi:10.2136/sssaj2017.11.0395
      Soil Science Society of America Journal 2018 82:502-508
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  • SOIL MINERALOGY up

    • Martin Rabenhorst and Jeffrey Post
      Manganese Oxides for Environmental Assessment
      Core Ideas
      • Synthesis of birnessite that forms a durable coating requires both high lactate and high Na to K ratios.
      • A high lactate to permanganate ratio facilitates a rapid (<10 min) nucleation of birnessite crystals.
      • The high Na/K ratio facilitates crystal growth along the c axis because Na+ ions fit well within the triclinic structure.
      • Early-formed birnessite is initially poorly ordered, but ordering along the c axis occurs over 2 to 3 d.
      • Differences in durability of birnessites are likely related to crystal morphology.
      doi:10.2136/sssaj2017.08.0256
      Soil Science Society of America Journal 2018 82:509-518
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  • OTHER ITEMS up


    • SSSA Yearly Reports
      doi:10.2136/sssaj2017.0107pres_and_yearly_reports
      Soil Science Society of America Journal 2018 82:519-519
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    • Presidents of the Soil Science Society of America
      doi:10.2136/sssaj2017.0107pres_and_yearly_reports
      Soil Science Society of America Journal 2018 82:519-519
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    • SSSAJ Annual Report
      doi:10.2136/sssaj2017.0107pres_and_yearly_reports
      Soil Science Society of America Journal 2018 82:519-532
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    • 2017 SSSA Fellows
      doi:10.2136/sssaj2017.0171f
      Soil Science Society of America Journal 2018 82:533-535
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    • 2017 SSSA Award & Scholarship Recipients
      doi:10.2136/sssaj2017.0170aw
      Soil Science Society of America Journal 2018 82:536-543
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    • Thanks to Our Reviewers
      doi:10.2136/sssaj2017.0205thanksrev
      Soil Science Society of America Journal 2018 82:544-546
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