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Long‐term 4R nitrogen management in dryland wheat–fallow systems Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-21 Matt A. Yost, Ray Cartee, Brad Davis, Grant Cardon, Earl Creech, Phil Rasmussen
Several short‐term studies have investigated 4R (right source, rate, time, and place) N management for dryland wheat (Triticum aestivum L.) production and profitability, but few long‐term studies exist in the United States or abroad. This study evaluated long‐term impacts of several aspects of 4R N management on dryland hard red wheat yield, protein, and return to N. Experiments were conducted at Nephi
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Evaluating consistency across multiple NeoSpectra (compact Fourier transform near‐infrared) spectrometers for estimating common soil properties Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-21 Sadia M. Mitu, Colleen Smith, Jonathan Sanderman, Richard R. Ferguson, Keith Shepherd, Yufeng Ge
Rapid and cost‐effective techniques for soil analysis are essential to guide sustainable land management and production agriculture. This study aimed at evaluating the performance and consistency of portable handheld Fourier‐transform near‐infrared spectrometers and the NeoSpectra scanners in estimating 12 common soil physical and chemical properties including pH; organic carbon (OC); inorganic carbon
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Recipients of 2023 SSSA Editor's Citation for Excellence named Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-17
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Exploratory assessment of the SLAKES method to characterize aggregate stability across diverse soil types Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-17 Diana Vigah Adetsu, Emmanuel Arthur, Yuting Fu, Wim Cornelis, Mathieu Lamandé
Classical soil aggregate stability (AS) methods lack standardized protocols and require long measurement times. However, the fairly new SLAKES method purportedly allows for rapid AS estimation with minimal technical equipment. SLAKES has been tested on fine‐textured soils but its suitability for other soil types is unknown. This study investigated SLAKES’ suitability for AS measurements on silty clay
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Soil Science Society of America Journal Annual Report, 2023 Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-17
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High salinity prolongs water processes required for soil structure stability during drying–wetting cycles Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-17 Kai Chang, Haoxuan Feng, Jiahao Xing, Xiangping Wang, Rongjiang Yao, Xuguang Xing
Climate events, such as drought and rainfall, can lead to a cycle of drying and wetting that may cause changes in soil structure, leading to deteriorations in the health of saline soils. However, little is known about the extent and behavior of soil structure degradation under the combined influences of salinity and drying–wetting (D‐W) cycles. Thus, we systematically investigated the effects of salinity
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Estimating bacterial breakthrough behaviors based on bacterial retention profiles in porous media Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-17 Fengxian Chen, Liqiong Yang, Xijuan Chen, Jie Zhuang
Traditional methods for assessing bacterial transport in soil or permeable sand aquifers, such as flow‐through experiments, breakthrough curve (BTC), and retention profile (RP) analysis, face challenges due to their complexity and the labor‐intensive nature of in situ implementations. This study seeks to address the question: How can the transport behavior of bacteria in soil be predicted in a simpler
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Accumulation of soil phosphorus within closed depressions of a drained agricultural watershed Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-16 R. C. K. Mumbi, M. R. Williams, C. J. Penn, J. J. Camberato
Closed depressions are common landscape features across glaciated landscapes. Erosion and runoff from depression hillslopes may result in phosphorus (P) accumulation near the bottom of the depression, with this “legacy P” potentially at risk of loss to surface waters when drained via tile drainage. We assessed spatial patterns of soil P within a tile‐drained watershed in northeastern Indiana as a function
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Evaluating the occurrence and spatial patterns of soil water repellency in the Deschutes National Forest, Oregon Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-13 Brittany G. Johnson, Jalene A. Weatherholt
High levels of soil water repellency (SWR) can hinder water infiltration and increase surface soil erosion risk and runoff. Although SWR occurs naturally in many areas, it is often patchy and does not impede water movement. However, fire can increase the connectedness and extent of SWR leading to topsoil loss, nutrient limitations, increased root water stress, and ultimately slower ecosystem recovery
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Nutrient transformations based on sampling scheme and cropping system following subsurface‐banded poultry litter Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-12 A. J. Ashworth, H. Amorim, P. A. Moore, T. A. Adams, C. Nieman, P. R. Owens
Poultry litter (PL) is an excellent source of micro‐ and macronutrients. However, surface applications result in greater nutrient runoff and nitrogen loss via ammonia volatilization. Subsurface banding PL is a promising technology for combating these challenges, but scant information exists on proper soil sampling techniques and management recommendations for subsurface‐applied PL. Therefore, objectives
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SHAPEv1.0 Scoring curves and peer group benchmarks for dynamic soil health indicators Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-12 Márcio R. Nunes, Kristen S. Veum, Paul A. Parker, Scott H. Holan, Joseph P. Amsili, Harold M. van Es, Skye A. Wills, Cathy A. Seybold, Douglas L. Karlen
The soil health concept has evolved over the past several decades, recognizing that the response of dynamic soil properties to management is dependent on site‐specific factors. The Soil Health Assessment Protocol and Evaluation (SHAPE) tool provides scores and benchmark values by forming soil peer groups based on site‐specific, climate‐edaphic characteristics. Data for model development were compiled
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Improving a nitrogen mineralization model for predicting unfertilized corn yield Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-12 Kathleen E. Arrington, Raziel A. Ordóñez, Zoelie Rivera‐Ocasio, Madeline Luthard, Sarah Tierney, John Spargo, Denise Finney, Jason Kaye, Charles White
Crop N decision support tools are typically based on either empirical relationships that lack mechanistic underpinnings or simulation models that are too complex to use on farms with limited input data. We developed an N mineralization model for corn that lies between these endpoints; it includes a mechanistic model structure reflecting microbial and texture controls on N mineralization but requires
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Intercropping prairie cordgrass with kura clover had little effect on soil biogeochemistry Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-09 Vaishnavi Varikuti, Sangeeta Bansal, Suite Xu, Navreet K. Mahal
Intercropping kura clover (Trifolium ambiguum) (KC) with prairie cordgrass (Spartina pectinata) (PCG) has great potential for biofuel feedstock on marginal lands. This study evaluated the impacts of 10‐year PCG‐KC intercropping and PCG monoculture fertilized with different nitrogen (N) rates of granular urea (five treatments: PCG‐KC, PCG‐0N, PCG‐75N, PCG‐150N, and PCG‐225N) on soil biogeochemical properties:
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Note on the unparallel vertical distribution of nitrate and sulfate in Mollisols Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-09 Daniela Russi, Flavio H. Gutierrez Boem, Gerardo Rubio
Soil fertility diagnosis often omits subsoil measurements, impacting precision. Our objective was to compare the vertical distribution of nitrate and sulfate in agricultural Mollisols. Both anions were measured in 34 Mollisols of the Pampean region (Argentina) sampled to 160‐cm depth at 20 cm intervals. Nitrate exhibited a continuous downward trajectory, with maximum values at 0–20 cm (12.7 mg N kg−1)
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Manure fertilizer divergently affects organic and inorganic carbon in a dryland agricultural soil Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-09 Fuyuan Su, Weibo Kong, Liping Qiu, Qifan Wu, Hansong Zhu, Xin Wei, Yonghong Wu, Mingde Hao, Huaqian Ni, Xiaorong Wei
Soil carbon (C) is important to support sustainable agriculture, affect global C cycling, and influence the climate system. Manure fertilization is an important and widely used practice to increase agricultural productivity and soil organic carbon (SOC) pools, whereas its effect on soil inorganic carbon (SIC) and total C in deep soils is not reported. This knowledge gap restricts our ability to accurately
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Pb2+ adsorption on functionalized biochar nanoparticles: Insights from nanoparticle characterization and kinetic‐isotherm analysis Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-06 Hedieh Behnam, Ahmad Farrokhian Firouzi, Jiří Šimůnek
There has been an ongoing discussion about whether using functionalized biochar nanoparticles for pollutant removal is practical. The existing uncertainty surrounding functionalized biochar nanoparticles raises questions regarding their effectiveness in unraveling this problem. In this study, functionalized biochar nanoparticles were produced from corn (Zea mays L.) residues and Conocarpus erectus
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Influence of barrens restoration treatments on soil carbon, nitrogen, and mercury pools and emissions Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-05 R. K. Kolka, K. M. Quigley, J. R. Miesel, M. B. Dickinson, B. R. Sturtevant, C. C. Kern
Currently barrens communities only represent about 1% of their original area in the Great Lakes region. To maintain or restore barrens vegetation, prescribed fire is often applied to limit the regeneration of undesirable species and shrubs. Vegetation community response is a combination of direct fire effects on the vegetation vitality and the indirect effect of soil nitrogen (N) loss that favors nutrient‐poor
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Utility of in situ ion‐exchange membranes to assess nutrient availability, productivity, and fertilizer response of coastal Douglas‐fir of the Pacific Northwest Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-04-04 K. M. Littke, S. M. Holub, E. Bremer, E. Turnblom
Douglas‐fir [Pseudotsuga menziesii (Mirb.) Franco] is the predominant forest plantation species in the Pacific Northwest (PNW), with site productivity and fertilizer response influenced by climate and soil variations. This study investigates the utility of in situ 12‐week supply measurements of nitrogen (N), calcium (Ca), and phosphorus (P) to ion‐exchange resins (specifically Plant Root Simulator
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Optimizing integrated nutrient management for sustainable maize–sesame cropping in Gujarat Plains: A soil health perspective Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-29 Zalak Y. Chauhan, Sanjay N. Shah, K. C. Patel, Jagruti C. Shroff, Hiren K. Patel
The degradation of soil quality in intensive cropping systems demands urgent attention to preserve soil health and sustain crop productivity. A 2‐year field experiment conducted in the loamy sand soil of Gujarat's Plains and Hills explored integrated nutrient management (INM) effects on nutrient dynamics, soil attributes, and microbial populations in maize (Zea mays L.)–sesame (Sesamum indicum L.)
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Phytin recovered from grain distillation can serve as a phosphorus fertilizer for maize and soybean Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-29 Jeonggu Lee, Allan Hertzberger, Ankita Juneja, Roland Cusick, Vijay Singh, Andrew J. Margenot
Phosphorus (P) recovery from waste streams can increase food system P use efficiency while simultaneousl mitigating point source P losses. Phytin is a P‐rich waste product generated from maize grain biorefineries, largely located in the US Midwest. However, since the majority of P in phytin is organic, phytin‐P is likely to have limited crop availability in soil following application, as it must first
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Examining activity–pH relationships of soil nitrogen hydrolytic enzymes Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-29 Rachel C. Daughtridge, Andrew J. Margenot
Nitrogen (N) depolymerization and mineralization in soils are catalyzed by extracellular enzymes, notably proteolytic and chitinolytic enzymes. However, there is limited knowledge of pH optima of these N‐hydrolytic soil enzymes, potentially missing insights to soil pH effects on N cycling and requiring assumptions on pH optima in enzyme activity assays. We evaluated pH optima of five N‐hydrolytic enzymes
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Soil carbon and aggregate stability are positively related and increased under combined soil amendment, tillage, and cover cropping practices Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-22 Binita Thapa, Jake Mowrer
Agricultural practices alter the organic carbon dynamics in soil. An experiment was conducted to study the effect of carbon amendments, tillage, and cover cropping on permanganate oxidizable carbon (POXC), total organic carbon (TOC), and wet aggregate stability (WAS) in a 2-year crop sequence (corn–cover crop–cotton–cover crop) at the Texas A&M Research Farm. Two carbon amendments (biochar and composted
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Can saturated paste be used to predict bulk density in annual cropping systems in California? Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-22 Veronica Suarez Romero, Sarah E. Light
Soil bulk density (BD) is important for measuring changes in soil chemical, physical, and biological properties; however, the measurement is tedious to collect and requires specialized equipment. Database measurements for soil surface BD do not always correspond to present field conditions as field management can alter BD in time. Saturation percentage (SP) is a routine lab measurement. The objectives
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Prediction, mapping, and implication for better soil organic carbon management in Ethiopia Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-21 Gizachew Ayalew Tiruneh, Ashok Hanjagi, Muhammad Mumtaz, José Miguel Reichert
A precise soil organic carbon (SOC) content estimate is crucial soil quality parameter for agricultural produce and ecological safety. Moreover, geospatial modeling of SOC is critical when there are limited laboratory equipment and chemical reagents for soil analysis. This study used geostatistics—ordinary kriging (OK) and inverse distance weighting (IDW)—to map SOC in Libokemkem area, Northwest Ethiopia
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A review and analysis of particle size parameters and their relationships to physical properties of growing media Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-21 Stan Durand, William Carl Fonteno, Jean‐Charles Michel
An expanded description of particle morphology and the analysis of its relationships with physical properties may help to optimize the selection of raw materials and particle size fractions used as growing media constituents. Previous works have described the outlines of these relations based mostly on sieving procedures to characterize particle size distribution. They have shown limited and sometimes
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Temporal variability is a major source of uncertainty in soil carbon measurements Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-21 Stewart B. Wuest, Nicole Durfee
Monitoring changes in soil organic carbon over time is important to many agricultural and environmental goals. Despite decades of measurements, temporal variability in soil carbon measurements has not been studied extensively. In this report, we examine five sets of monthly samples extending up to 3 years each that were collected from field experiments at four locations representative of dryland farming
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Soil sample storage conditions affect measurements of pH, potassium, and nitrogen Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-19 Maya Sollen‐Norrlin, Naomi Laura Jane Rintoul‐Hynes
Soil quality monitoring schemes are a useful tool for assessing the potential of soils to perform desired services such as agricultural productivity. When researchers or other stakeholders wish to compare results between different schemes or studies, failure to consider differences in soil sample storage conditions presents a significant potential for error. Here, we compared levels of nitrogen and
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Shrub and patch size of moss crusts regulate soil multifunctionality in a temperate desert of Central Asia Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-18 Yong‐Gang Li, Yun‐Jie Huang, Ben‐Feng Yin, Xiao‐Bing Zhou, Yuan‐Ming Zhang
The shrub and patch size of moss crusts can significantly affect plant and soil nutrients. The effects and relationships of shrubs and moss crusts on soil multifunctionality are unclear. This study aimed to understand the spatial heterogeneity of soil multifunctionality in moss crust patches and shrubs. Soil organic carbon, nutrient, and enzyme activities under moss crust patches were measured. Interestingly
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Litter and root sources of soil organic matter in a temperate forest: Thirty years in the DIRT Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-18 Richard D. Bowden, Myrna J. Simpson, Nathalie Paz Saucedo, Katherine Brozell, Jackie DiGiacomo, Kate Lajtha
Managers increasingly seek to increase forest soil carbon but long‐term controls on soil organic matter (SOM) sources and stability are weakly understood. We used a 30‐year detrital input/removal treatment experiment in a deciduous forest to evaluate the importance of root and leaf litter to SOM. Inputs were assessed by excluding roots and leaves (litter) or by doubling litter inputs. In mineral soil
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Responses of labile organic carbon fractions and mineralized carbon to straw return combined with fertilizer application in the maize–Melilotus officinalis intercropping system Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-14 Wei Zhao, Hongrui Zhao, Ruiqi Li, Shuai Hao, Hongyan Wang, Daqing Wang
Mollisol is crucial for solving food security issues, but long‐term excessive application of chemical fertilizers has led to severe Mollisol degradation in Northeast China, especially a rapid decline in soil organic carbon (SOC). In context of the use of crop‐herbage intercropping and straw return as alternatives for some chemical fertilizers, it is important to understand how crop‐herbage intercropping
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N2O consumption, uptake, and microbial reduction processes in flooded sandy loamy paddy soils Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-14 Wei Wang, Kun Li, Jun Li, Jinmei Zhong, Lei Xia, Wenqin Chen, Zhaohua Li, Ling Wang
Sandy loamy soils are widely distributed in fluvial floodplains and experience flooding events frequently, resulting in a large amount of nitrous oxide (N2O) emissions. This case is more serious when the soil use is changed to paddies. It is of great significance to figure out the N2O consumption and its influencing factors in sandy loamy paddy soils to mitigate N2O emissions. In this study, three
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Early production of switchgrass (Panicum virgatum L.) and willow (Salix spp.) indicates carbon accumulation potential in Appalachian reclaimed mine and agriculture soil Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-14 Salvador Grover, Hannah M. Anderson, Jeremy Fleck, Charlene N. Kelly, Jamie Schuler, Matthew D. Ruark, Zachary B. Freedman
The production of bioproduct feedstocks such as switchgrass (Panicum virgatum L.) and willow (Salix spp.) on degraded lands provides an opportunity to grow dedicated bioenergy crops with the potential to capture and store carbon in the soil while reducing competition with land for food production. However, how the production of these crops alters plant–soil–microbe interactions that govern soil C accumulation
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Crop‐ and weather‐dependent yield and wind erosion benefits from a conservation practices system Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-14 Drew A. Scott, Mark A. Liebig, Nicanor Z. Saliendra, David Toledo, Michael DeGreef, Chantel Kobilansky, Justin Feld
Wind erosion and variable weather challenge crop production in the northern Great Plains. Management that increases residue cover might mitigate wind erosion during the cash crop growing season. We evaluated horizontal sediment flux (modified Wilson and Cooke samplers) and cash crop yield across a single rotation of corn (Zea mays L.)–soybean (Glycine max (L.) Merr.)–spring wheat (Triticum aestivum
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Effectiveness of wood ash and paper sludge as liming and nutrient sources for annual ryegrass grown in podzolic soils of Newfoundland Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-07 Bilal Javed, Yeukai Katanda, Muhammad Nadeem, Thilini Wickremasinghe, Muhammad M. Farhain, Raymond Thomas, Lakshman Galagedara, Xiaobin Guo, Mumtaz Cheema
The acidic soils of western Newfoundland require liming for successful production of most crops. Locally sourced paper mill waste wood ash (WA) and paper sludge (SL) have potential as cheaper alternatives to limestone (LIME). Two greenhouse experiments evaluated WA and SL as liming and soil conditioning amendments for annual ryegrass (Lolium multiflorum) production. At 55 days after seeding, soil pH
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Stock change accounting overestimates the potential climate benefit of soil carbon storage Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-03-05 Jonathan R. Alexander, Joshua D. Gamble, Rodney T. Venterea
Agriculture is being called upon to increase carbon (C) storage in soils to reduce greenhouse gas (GHG) accumulation in the atmosphere. Cropping systems research can be used to support GHG mitigation efforts, but we must quantify land management impacts using appropriate assumptions and unambiguous methods. Soil C sequestration is considered temporary because it can be re‐emitted as carbon dioxide
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Analysis of soil erosion changes and influencing factors based on the CSLE model and GeoDector in Dongjiang River Basin of China Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-29 Shuhao Li, Junfeng Kang, Junliang Ye, Yang He, Hong Wang
Soil and water conservation and protection are of great importance to China, as the source of the Pearl and Xiang Rivers, and the main rare earth mining area, the ecology of Dongjiang River Basin, is very fragile. In this paper, the Chinese soil loss equation and the Geodetector method are used to analyze the spatial and temporal patterns and the impact factors of soil erosion in this area from 2016
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No‐till cover crop effects on the hydro‐physical properties of a silt loam Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-29 De'Anna R. Lieskamp, Abigail M. Moseley, Isabelle M. R. Legrain, Cheyenne Kelly, Md Ariful Haque, Seockmo Ku, Samuel I. Haruna
Soil hydraulic and physical properties can be influenced by various land management practices, and they determine water movement and storage within the vadose zone, with both agronomic and environmental effects. The objective of this study was to evaluate the effects of two such practices (no‐till [NT] and cover crops [CCs]) on soil hydraulic (e.g., saturated hydraulic conductivity [Ksat], and water
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Advances in making Mn oxide‐coated sands Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-28 Martin C. Rabenhorst, Jocelyn L. Wardrup
Manganese (Mn) oxide‐coated sand has been suggested as an amendment for scrubbing metals in water filtration beds and also as a less concentrated medium for uniformly amending soils with Mn oxides in mesocosm scale studies. Earlier work at the lab bench scale, using potassium permanganate (KMnO4) solutions that were reduced with sodium (Na) lactate, resulted in sands coated with about 0.13% Mn. The
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Influence of woodchip size and nitrogen fertilization on carbon dioxide and nitrous oxide emissions from soils amended with orchard biomass Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-25 Suduan Gao, Aileen Hendratna, Touyee Thao, Catherine Mae Culumber, Amisha T. Poret‐Peterson, Cameron A. T. Zuber, Brent A. Holtz
Incorporating large amounts of woody biomass into soil, such as in whole orchard recycling (WOR), can promote carbon sequestration, nutrient recycling, and ecosystem health in agricultural fields. Yet uncertainty regarding the effects of WOR on soil carbon (C) and nitrogen (N) dynamics influences management decisions. The objective of this research was to evaluate the effects of woodchip (WC) size
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Changes in soil profile organic carbon and hydro-physical properties as impacted by long-term manure and inorganic fertilizer rates under a corn–soybean rotation system Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-25 Anuoluwa O. Sangotayo, Poulamee Chakraborty, Udayakumar Sekeran, Sutie Xu, Sandeep Kumar, Peter Kovacs
Using manure appropriately may enhance organic carbon and hydro-physical properties while avoiding the negative impact on the environment. However, how manure impacts soils, especially at lower depths, is still not well studied. Therefore, the objective of this study was to assess the impact of different manure and inorganic fertilizer application rates on soil profile organic carbon and hydro-physical
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Effect of water salinity and sodicity on soil least limiting water range Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-24 Azadeh Safadoust, Behzad Dashtpeyma, Mohammad Reza Mosaddeghi, Hossein Asgarzadeh, Bahram Gharabaghi
This study aimed to evaluate the effects of water salinity and sodicity on the least limiting water range (LLWR) of two clay loam and sandy loam soils. The undisturbed soil samples were subjected to different water qualities, including three levels of sodium adsorption ratio (SAR, 1, 5, and 12) and electrical conductivity (EC, 1, 6, and 10 dS m−1). Our findings indicate that increasing EC at each SAR
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Visual evaluation of soil structure is a reliable method to detect changes in the soil quality of Colombian Amazon pasturelands Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-24 Dúber Mora-Motta, Maria P. Llanos-Cabrera, Juan P. Chavarro-Bermeo, Fausto A. Ortíz-Morea, Adriana M. Silva-Olaya
The visual evaluation of soil structure (VESS) is an affordable and easy-to-use method for assessing soil quality that could help in the early detection of soil quality changes in pasturelands of less developed countries where ranchers cannot afford quantitative soil studies. Here, we assessed the soil quality of three pasture areas in the Colombian Amazon region using the VESS method and tested its
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Improving soil water storage with no-till cover cropping in the Mississippi River Alluvial Basin Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-24 Madhav Dhakal, Martin A. Locke, Krishna N. Reddy, Matthew T. Moore, R. Wade Steinriede, L. Jason Krutz
Excessive tillage reduces soil water storage and increases surface runoff. Cover crops can modify the effect of tillage on soil water dynamics, but limited information is available for the Mississippi River Alluvial Basin. This study was conducted to determine whether soil–water dynamics could be manipulated through conservation production systems affecting surface residue management. Effects of tillage
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Thorium and uranium rapid quantification in soil with portable X-ray fluorescence Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-23 Fábio L. Melquiades, Rodrigo O. Bastos, Leandro Rampim, Israel Isaías Sandrino, Duvan Gil Rodriguez, Paulo S. Parreira
This study aims to evaluate the thorium (Th) and uranium (U) quantification in soil employing a commercial routine in a portable X-ray fluorescence (pXRF) spectrometer. Certified reference materials (CRMs), as well as a soil sample set, were measured by pXRF and gamma-ray spectrometry. The pXRF results showed that the thorium average detection and quantification limits (in mg kg−1) were 3.3 ± 0.5 and
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Effect of alkali residue and humic acid on aggregate structure of saline-alkali soil Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-23 Chang Liu, Hongzhou Shang, Lihua Han, Xiaoran Sun
Humic acid (HA) and alkali residue (AR) exert an essential impact on soil aggregate structure, but how HA and AR promote the formation of macroaggregates jointly is not clear. The aim of this research was to explore influence of alkali residue and humic acid (AHA) on the structure and stability of soil aggregates, with saline-alkali soil in North China as an example. The morphology and structure of
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Stratified substrates enhance water storage and distribution between irrigation events Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-23 Kristopher S. Criscione, Jeb S. Fields, James S. Owen, Athanasios Gentimis
The specialty crop industry requires copious amounts of water to meet production needs; however, current substrates are highly porous to mitigate risks and are subsequently inefficient with regard to water use. Therefore, more sustainable soilless substrates are needed to ensure the future success/profitability of the horticultural industry, especially as finite fresh water sources become limiting
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Comparing impacts of corn residue removal and amelioration practices on soil properties after 3, 6, and 10 years Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-23 Hans W. Klopp, Humberto Blanco-Canqui, Michael Sindelar, Virginia L. Jin, Marty R. Schmer
Information on corn (Zea mays L.) residue removal and organic amendment additions to ameliorate removal effects on soil properties is limited. Thus, we compared impacts of corn residue removal at 59% and organic amendments (winter rye [Secale cereale L.]) cover crop and manure every other year at 24 Mg ha−1 on soil organic carbon (SOC) and physical properties after 10 years under irrigated no-till
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Evaluation of the influence of surface and subsurface acidity correction methodologies on soil compaction in agropastoral systems under no-till Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-19 Wander Luis Barbosa Borges, Jorge Luiz Hipólito, Luan Carlos Piantra, Isabela Malaquias Dalto de Souza, Helimar Balarone da Silva Sporch, Pedro Henrique Gatto Juliano, Letícia Nayara Fuzaro Rodrigues
Surface and subsurface acidity and soil compaction restrict root exploration and impair crop yields in agropastoral systems under no-till. To support the development of surface and subsurface acidity correction methodologies that can decrease soil compaction in agropastoral systems under no-till, this study tested the following hypotheses: (a) the incorporation of limestone with plowing and harrowing
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Farm-level variability in soil biological health indicators in Michigan is dependent on management and soil properties Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-19 Benjamin Agyei, Christine D. Sprunger, Eric Anderson, Christina Curell, Maninder Pal Singh
Soil biology is vital for maintaining productivity, enhancing soil health, and creating resilient agroecosystems. However, many questions remain on how microbial communities are impacted by different soil properties and management practices, especially on grower-managed fields. This study examined soil biological health properties (0–15 cm) and field history data from 310 grower-managed fields within
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Carbon persistence of soils with long-term biosolids amendments in California agroecosystems Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-14 Yocelyn B. Villa, Eddie Phosalath, Rebecca Ryals
Biosolids can build soil organic matter, but their ability to increase carbon and nitrogen in persistent fractions in deep soil is not well understood. We aimed to assess the mechanisms that influence soil carbon and nitrogen dynamics at three sites—Sacramento (irrigated, grazed grassland), Solano (rainfed, grazed grassland), and Merced (feed cropping system with alfalfa–corn rotation)—where soils
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The impact of a multiple-row Tamarix windbreak on grain size parameters of aeolian sand flux Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-13 Abbas Miri, Nicholas P. Webb
Understanding the effects of windbreaks on aeolian sediment transport rates, and the size distribution of aeolian sediments transported through them, is important for designing windbreaks to optimize their wind erosion mitigation benefits. This field study determines the size distribution of aeolian sediments upwind (x = −100 m), within (x = 100 and 256 m) and downwind (x = 448 and 560 m) (where x
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Leaching characteristics of electrochemically precipitated struvite compared to other common phosphorus fertilizers in differing soils Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-09 Tatum Simms, Kristofor R. Brye, Trenton L. Roberts, Lauren F. Greenlee
Phosphate-rich struvite (MgNH4PO4·6H2O) can be reclaimed from wastewater as a fertilizer material to help provide clean water and sustainable food production. The objective of this study was to evaluate the leaching characteristics of wastewater-recovered electrochemically precipitated struvite (ECST) compared to other common fertilizer-P sources in soils from Arkansas (AR loam and silt loam), Missouri
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Mineralogical differences between seam and prism material in loess-derived fragipans in western Kentucky Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-02-04 Christopher Shepard, Hannah Somerville, Christopher Matocha, Rebecca C. Ramsey, Pamela A. Obura, Matt McCauley
Fragipan horizons are common diagnostic subsurface features typically identified by their dense, brittle nature under field conditions. Fragipan horizons are often hypothesized to contain various silicate bonding agents, including phyllosilicates, amorphous aluminosilicates/silica, and silica sorbed to iron oxyhydroxides. However, the association of silica (Si) with other minerals in these horizons
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On being a forest soil scientist—Reflections at the 14th North American Forest Soils Conference Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2024-01-30 Thomas H. DeLuca
The North American Forest Soils Conference (NAFSC) provides a venue for forest soil scientists and affiliated scientists to share their emerging research results through discourse and thoughtful engagement. My task at the 14th NAFSC was to share my perspective on what it means to be a forest soil scientist and the unique contribution forest soil scientists, and in particular, our contribution to addressing
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Texture and organic matter associations with soil functional properties in crop and conservation land uses in North Carolina Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-22 Alan J. Franzluebbers
Soil texture and organic matter are considered overarching factors controlling a diversity of soil processes and properties. However, a more complete understanding of how these factors quantitatively affect other soil properties has been lacking due to either limited scope of land use and management conditions, confounding climate and environmental conditions with management, or narrow range of soil
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Effects of dry aging and heating on the structural characteristics and transformation of hexagonal turbostratic birnessite Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-18 Hui Yin, Shuang Zhang, Yongjin Xiang, Wenbin Zuo, Jingtao Hou, Jing Zhang, Mei Hong, Xionghan Feng, Wenfeng Tan, Fan Liu
Natural birnessite-like minerals are commonly enriched in various transition metals, such as iron (Fe). Though the fates of metals associated with birnessites during mineral transformation in aqueous conditions are thoroughly studied, we determined the Fe behaviors in Fe-doped hexagonal turbostratic birnessites during mineral evolution in dry state at room temperature for 8 years and upon thermal treatments