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Volume 80 Issue 6, November-December 2016



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  • REVIEWS & ANALYSIS up

    • H. Henry Janzen
      The Soil Remembers
      Core Ideas
      • Sustainability can only be measured over long time periods.
      • To evaluate sustainability, therefore, we need a way of keeping track—a memory.
      • Soil offers such a memory because the soil stays.
      • An underlying aim of soil science is to extract and describe soils’ memories.
      doi:10.2136/sssaj2016.05.0143
      Soil Science Society of America Journal 2016 80:1429-1432
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  • SOIL PHYSICS & HYDROLOGY up

    • Samia Rafraf, Lamia Guellouz, Houda Guiras and Rachida Bouhlila
      A New Model Using Dynamic Contact Angle to Predict Hysteretic Soil Water Retention Curve
      Core Ideas
      • We predicted the initial drying, main wetting, main drying, water retention, and scanning curves.
      • The model uses a process-dependent contact angle determination.
      • An experimental water retention curve was determined on clayey soils in slurry form.
      doi:10.2136/sssaj2016.01.0006
      Soil Science Society of America Journal 2016 80:1433-1442
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    • Mario L. Flores-Mangual, Birl Lowery and James G. Bockheim
      Episodic Rainwater Movement in a Hydrophobic Sparta Sand under Three Ecosystems in Lower Wisconsin River Valley
      Core Ideas
      • Prairie to pine conversion reduced soil water and drainage because of hydrophobicity and interception.
      • Soil-applied surfactant did not increase soil water content or water drainage.
      • Early afforested prairie had similar soil water content and drainage to natural prairie.
      • Early afforested prairie had greater soil water content and drainage than pine plantation.
      doi:10.2136/sssaj2016.04.0115
      Soil Science Society of America Journal 2016 80:1443-1462
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    • Lijun Su, Quanjiu Wang, Yuyang Shan and Beibei Zhou
      Estimating Soil Saturated Hydraulic Conductivity using the Kostiakov and Philip Infiltration Equations
      Core Ideas
      • We analyzed the relationships between the parameters of the Kostiakov and Philip infiltration equations.
      • A new method was proposed to estimate the Ks by parameters in Kostiakov equation.
      • Effect of soil hydraulic parameters on a new method was discussed.
      doi:10.2136/sssaj2016.04.0125
      Soil Science Society of America Journal 2016 80:1463-1475
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    • Pingping Zhang, Yongxing Cui, Yanle Zhang, Junchao Jia, Xia Wang and Xingchang Zhang
      Changes in Soil Physical and Chemical Properties following Surface Mining and Reclamation
      Core Ideas
      • Mining and reclamation caused massive disturbance to soil properties.
      • Establishment of artificial vegetation had a better effectiveness than natural recovery in the restoration of mine lands.
      • Vegetation planting clearly improved the soil BD, SI, WSAs, SRI, and SOC of mine soils, but mainly in the surface (0-15 cm) layer.
      • The effect of soil property improvement was closely related to the vegetation types and planting grass should be encouraged.
      doi:10.2136/sssaj2016.06.0167
      Soil Science Society of America Journal 2016 80:1476-1485
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    • Cecilie Hermansen, Maria Knadel, Per Moldrup, Mogens H. Greve, René Gislum and Lis W. de Jonge
      Visible–Near-Infrared Spectroscopy Can Predict the Clay/Organic Carbon and Mineral Fines/Organic Carbon Ratios
      Core Ideas
      • Visible–near-infrared spectroscopy is a fast and indirect method for soil analysis.
      • The ratios of clay and (clay + fine silt) to organic C relate to soil functions.
      • We predicted the clay and (clay + fine silt) to organic C ratios successfully.
      doi:10.2136/sssaj2016.05.0159
      Soil Science Society of America Journal 2016 80:1486-1495
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    • Wenzhi Zeng, Chi Xu, Jiesheng Huang, Jingwei Wu and Markus Tuller
      Predicting Near-Surface Moisture Content of Saline Soils from Near-Infrared Reflectance Spectra with a Modified Gaussian Model
      Core Ideas
      • Moisture estimates from near-infrared reflectance are improved with a modified Gaussian model.
      • Artificial neural network simulations further improve moisture prediction accuracy.
      • The proposed method yields better results than standard reflectance moisture indices.
      doi:10.2136/sssaj2016.06.0188
      Soil Science Society of America Journal 2016 80:1496-1506
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    • Mehdi Rahmati and Mohammad Reza Neyshaboury
      Soil Air Permeability Modeling and Its Use for Predicting Unsaturated Soil Hydraulic Conductivity
      Core Ideas
      • Ka(θ) was modeled by considering a similar phenomenon between water and air flows in soil medium.
      • Kw(θ) and Ka(θ) were theoretically linked by considering a similar intrinsic permeabilities for both water and air.
      • The proposed models were tested with laboratory-measured data showing reasonable accuracy.
      doi:10.2136/sssaj2015.12.0430
      Soil Science Society of America Journal 2016 80:1507-1513
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  • SOIL PHYSICS & HYDROLOGY NOTE up

    • Dilia Kool, Joshua L. Heitman, Naftali Lazarovitch, Nurit Agam, Thomas J. Sauer and Alon Ben-Gal
      In Situ Thermistor Calibration for Improved Measurement of Soil Temperature Gradients
      Core Ideas
      • Soil temperature gradients are important for soil (latent) heat flux estimation.
      • Heat-pulse sensor thermistors’ temperature differences were on the order of 0.2°C.
      • In situ calibration reduced uncertainty between thermistors to about 0.06°C.
      • In situ calibrated offsets between thermistors were similar to laboratory results.
      • Offsets were found to change very little over a 5-yr period.
      doi:10.2136/sssaj2016.05.0134
      Soil Science Society of America Journal 2016 80:1514-1519
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  • SOIL CHEMISTRY up

    • Fazhu Zhao, Lu Zhang, Chengjie Ren, Jiao Sun, Xinhui Han, Gaihe Yang and Jun Wang
      Effect of Microbial Carbon, Nitrogen, and Phosphorus Stoichiometry on Soil Carbon Fractions under a Black Locust Forest within the Central Loess Plateau of China
      Core Ideas
      • Soil C fractions were significantly correlated with microbial C/P and N/P ratios.
      • Soil C fractions were extremely affected by microbial C/P and N/P ratios.
      • Microbial C, N, and P stoichiometry have the potential to affect C storage.
      doi:10.2136/sssaj2016.06.0175
      Soil Science Society of America Journal 2016 80:1520-1530
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    • Eva Weyers, Daniel G. Strawn, Derek Peak, Amber D. Moore, Leslie L. Baker and Barbara Cade-Menun
      Phosphorus Speciation in Calcareous Soils Following Annual Dairy Manure Amendments
      Core Ideas
      • High rates of repeated manure amendment to calcareous soils lead to change in P speciation
      • Soil P species are Ca-P minerals, P adsorbed on Fe oxides, and organic P compounds
      • After 3 yr of manure amendment, plant-available P increases in surface and subsurface soils
      doi:10.2136/sssaj2016.09.0280
      Soil Science Society of America Journal 2016 80:1531-1542
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  • SOIL CHEMISTRY NOTE up

    • Anthony P. Miller and Yuji Arai
      Comparative Evaluation of Phosphate Spectrophotometric Methods in Soil Test Phosphorus Extracting Solutions
      Core Ideas
      • Original ascorbic acid methods are sensitive in STP solutions at phosphate <2 mg L−1.
      • New optimum wavelengths for the Dick and Tabatabai method in STP extraction solutions.
      • A new optimum wavelength of 888 nm for Asher’s methods is recommended.
      doi:10.2136/sssaj2016.08.0256n
      Soil Science Society of America Journal 2016 80:1543-1550
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      [ Supplement 1 ]
  • SOIL BIOLOGY & BIOCHEMISTRY up

    • Timothy B. Parkin, Thomas C. Kaspar, Dan B. Jaynes and Thomas B. Moorman
      Rye Cover Crop Effects on Direct and Indirect Nitrous Oxide Emissions
      Core Ideas
      • A rye cover crop in a Midwest corn–soybean rotation did not reduce direct N2O emissions.
      • NO3 leaching and indirect N2O emissions were reduced with a winter rye cover crop.
      • Large year-to-year variations in precipitation were a major determinant of N2O losses.
      doi:10.2136/sssaj2016.04.0120
      Soil Science Society of America Journal 2016 80:1551-1559
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  • SOIL FERTILITY & PLANT NUTRITION up

    • Zejiang Cai, Suduan Gao, Aileen Hendratna, Yinghua Duan, Minggang Xu and Bradley D. Hanson
      Key Factors, Soil Nitrogen Processes, and Nitrite Accumulation Affecting Nitrous Oxide Emissions
      Core Ideas
      • Nitrite concentration was highly correlated with N2O emissions within two distinct water content ranges.
      • Soil moisture was the most important environmental factor affecting N2O emissions.
      • Nitrous oxide emissions increased exponentially as the N application rate increased.
      • Biochar and N transformation inhibitors showed great potential to reduce N2O emissions.
      doi:10.2136/sssaj2016.03.0089
      Soil Science Society of America Journal 2016 80:1560-1571
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    • Xiying Hao, Ben W. Thomas, Virginia Nelson and Xiaomei Li
      Agronomic Values of Anaerobically Digested Cattle Manure and the Separated Solids for Barley Forage Production
      Core Ideas
      • Agronomic values of anaerobically digested solid cattle manure are poorly defined.
      • Separated solids of anaerobically digested cattle manure supplied N similar to cattle manure.
      • Anaerobically digested cattle manure had high NH4–N/total N ratio.
      • Anaerobically digested cattle manure had less P buildup than cattle manure.
      • Digestate separated solids can be managed similar to cattle manure.
      doi:10.2136/sssaj2016.05.0132
      Soil Science Society of America Journal 2016 80:1572-1584
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  • SOIL FERTILITY & PLANT NUTRITION NOTE up

    • Maria Julia Cabello, Flavio H. Gutiérrez Boem, Cesar E. Quintero and Gerardo Rubio
      Soil Characteristics Involved in Phosphorus Sorption in Mollisols
      doi:10.2136/sssaj2016.07.0235n
      Soil Science Society of America Journal 2016 80:1585-1590
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  • PEDOLOGY up

    • Jiaping Wang, Curtis Monger, Xiujun Wang, Matteo Serena and Bernhard Leinauer
      Carbon Sequestration in Response to Grassland–Shrubland–Turfgrass Conversions and a Test for Carbonate Biomineralization in Desert Soils, New Mexico, USA
      Core Ideas
      • Soil carbonate is typically viewed as a soil mineral that requires centuries to accumulate; our study indicates that it can be generated in months to years.
      • If the source of Ca is directly from silicate minerals, soil carbonate could be managed to sequester atmospheric CO2.
      • Carbon-13 values can change in less than a decade for both soil organic and inorganic C.
      • This study uses an experimental pedology approach using controls, treatments, and replications.
      doi:10.2136/sssaj2016.03.0061
      Soil Science Society of America Journal 2016 80:1591-1603
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    • Aoesta K. Mohammed, Daniel R. Hirmas, Daniel Giménez, Rolfe D. Mandel and James R. Miller
      A Digital Morphometric Approach for Quantifying Ped Shape
      Core Ideas
      • Ped shapes were quantified from digital photographs.
      • Circularity was the most useful morphometric for distinguishing ped types.
      • Experience and training influenced ability to recognize prismatic peds.
      • Existing photographs can be analyzed with this approach without the need to resample.
      doi:10.2136/sssaj2016.06.0203
      Soil Science Society of America Journal 2016 80:1604-1618
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  • SOIL & WATER MANAGEMENT & CONSERVATION up

    • Kipling S. Balkcom, Leah M. Duzy, Charles C. Mitchell and Dennis P. Delaney
      A Simple Approach to Enhance Multiprobe Soil Cone Penetrometer Analyses
      Core Ideas
      • We describe a method to quantify soil strength with a multiprobe cone penetrometer.
      • An area-under-the-curve calculation compares soil strength across treatments.
      • This value simplifies comparisons for depths and row positions of the soil profile.
      doi:10.2136/sssaj2016.05.0157
      Soil Science Society of America Journal 2016 80:1619-1628
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    • Yingcan Zhu, Alla Marchuk and John McLean Bennett
      Rapid Method for Assessment of Soil Structural Stability by Turbidimeter
      Core Ideas
      • A quantitative dispersion assessment chart is developed for rapid diagnosis of soil structural stability.
      • Turbidity and the amount of dispersed clay have a strong linear relationship.
      • The color and mean particle size of colloidal solution has a negligible effect on the linearity of turbidity.
      doi:10.2136/sssaj2016.07.0222
      Soil Science Society of America Journal 2016 80:1629-1637
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    • W. Ashley Hammac, Diane E. Stott, Douglas L. Karlen and Cynthia A. Cambardella
      Crop, Tillage, and Landscape Effects on Near-Surface Soil Quality Indices in Indiana
      Core Ideas
      • Soil quality scores were highest in perennial grass systems, followed by a soybean-dominated rotation, followed by a corn-based rotation.
      • No-till crop production had no higher soil quality score than chisel–disk tillage but the uncultivated perennial grass system scored higher than both.
      • In this crop production-dominated region, soil quality is driven by biological properties like soil C and β-glucosidase activity and physical properties like bulk density and macroaggregate stability.
      doi:10.2136/sssaj2016.09.0282
      Soil Science Society of America Journal 2016 80:1638-1652
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    • Sandra F. Yanni, H. Henry Janzen, Edward G. Gregorich, Ben H. Ellert, Francis J. Larney, Barry M. Olson and Francis Zvomuya
      Organic Carbon Convergence in Diverse Soils toward Steady State: A 21-Year Field Bioassay
      Core Ideas
      • We report long-term SOM change in different soils transplanted to one plot.
      • Mainly, initial SOM concentrations highly influence change over time.
      • Sand and land management history influence SOM change.
      • High C soils lose C and low C soils gain C; thus, soils converge to new equilibrium.
      • Light-fraction OM converges at a faster rate than C and N.
      doi:10.2136/sssaj2016.07.0214
      Soil Science Society of America Journal 2016 80:1653-1662
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      [ Supplement 1 ]
  • NUTRIENT MANAGEMENT & SOIL & PLANT ANALYSIS up

    • Charles Shapiro, Ahmed Attia, Santiago Ulloa and Michael Mainz
      Use of Five Nitrogen Source and Placement Systems for Improved Nitrogen Management of Irrigated Corn
      Core Ideas
      • Slow-release fertilizers improve the synchronization of N release and crop needs.
      • Applying N source in a band conserves N for greater corn yield and N uptake.
      • Chlorophyll readings and stalk NO3–N are useful tools for improving corn N management.
      doi:10.2136/sssaj2015.10.0363
      Soil Science Society of America Journal 2016 80:1663-1674
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    • Jordon Wade, William R. Horwath and Martin B. Burger
      Integrating Soil Biological and Chemical Indices to Predict Net Nitrogen Mineralization across California Agricultural Systems
      Core Ideas
      • Agricultural soils with and without a winter cover crop were surveyed.
      • Stronger relationships occurred between soil tests and N mineralization in cover-cropped fields.
      • Integrated models only improved the variance explained for cover-cropped fields.
      • Within management systems, preferred predictors varied by climate, independent of soil C.
      doi:10.2136/sssaj2016.07.0228
      Soil Science Society of America Journal 2016 80:1675-1687
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    • Stefania C. Appelhans, Ricardo J. Melchiori, Pedro A. Barbagelata and Leonardo E. Novelli
      Assessing Organic Phosphorus Contributions for Predicting Soybean Response to Fertilization
      Core Ideas
      • The contribution of P indices that include organic P to predict soybean P fertilization response was evaluated.
      • Bioavailable P and MA-P indices correlated with soybean relative yield.
      • MA-P index correlated with labile organic P fractions.
      • MA-P index improved the accuracy to predict soybean yield response to applied P.
      doi:10.2136/sssaj2016.04.0130
      Soil Science Society of America Journal 2016 80:1688-1697
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  • WETLAND SOILS up

    • Nia Hurst, John R. White and Joseph Baustian
      Nitrate Reduction in a Hydrologically Restored Bottomland Hardwood Forest in the Mississippi River Watershed, Northern Louisiana
      Core Ideas
      • River–floodplain connectivity is low in the Mississippi River basin.
      • Floodplain restoration led to an increase in NO3 reduction from river water.
      • Recovery of NO3 reduction was faster than other soil microbial measures.
      doi:10.2136/sssaj2016.08.0250
      Soil Science Society of America Journal 2016 80:1698-1705
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  • ERRATA up

    • Amir Sadeghpour, Quirine M. Ketterings, Francoise Vermeylen, Gregory S. Godwin and Karl J. Czymmek
      Erratum: Soil Properties under Nitrogen- vs. Phosphorus-Based Manure and Compost Management of Corn
      doi:10.2136/sssaj2016.03.0086er
      Soil Science Society of America Journal 2016 80:1706-1707
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    • Robson André Armindo and Ole Wendroth
      Physical Soil Structure Evaluation based on Hydraulic Energy Functions
      doi:10.2136/sssaj2016.03.0058er
      Soil Science Society of America Journal 2016 80:1708-1708
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