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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
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Temporal variations in soil aggregate re-formation behaviors after disturbance by tillage Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-14 Ekrem Ozlu, Francisco J. Arriaga
Aggregate re-formation after a disturbance is important for maintaining soil hydraulic status and carbon stabilization. A study investigating the re-formation of aggregates after disturbance by spring tillage was conducted at a site located on a south-facing (6%) slope with a silt-loam soil at Arlington-Wisconsin in 2018 and 2019. Treatments were conventional tillage (CT) and no-tillage (NT) with winter
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Nitrogen source affects in-season nitrogen availability more than nitrification inhibitor and herbicide in a fine-textured soil Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-09 William Neels, Amit Jhala, Bijesh Maharjan, Swetabh Patel, Glen Slator, Javed Iqbal
Nitrogen (N) fertilizer management continues to be challenging due to potential nitrogen losses under variable weather conditions. This study aimed to evaluate the performance of nitrification inhibitors, nitrogen sources, and herbicides on in-season nitrogen availability and agronomic indicators. A 2 site-year field experiment was conducted in silty-clay loam soil in the maize (Zea mays L.) phase
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The effect of phosphorus content on wheat root-associated prokaryotic community depends on growth stage and variety Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-08 Zhihan Feng, Chi Liu, Xin Li, Min Xiao, Yiqun Wang, Lu Li, Yanqiong Jiang, Minjie Yao, Xiangzhen Li
Wheat (Triticum aestivum L.) root-associated microbes play an indispensable role in helping plants obtain phosphorus (P) from soil. However, the relationships among soil P content, wheat root-associated microorganisms, and plants are still not fully understood. Therefore, revealing the effects of soil P content on the root-associated microbes in different crop varieties at different growth stages is
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Impact of no-till, crop rotation, cover crop, and drainage on soil physical and hydraulic properties Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-07 Ajoy Kumar Saha, John T. McMaine, Todd Trooien, Peter Sexton, Christopher Graham
Conservation agriculture and associated soil health practices potentially enhance soil resilience by improving the soil's physical, chemical, and biological properties and processes. This study assessed the impact of tillage (conventional tillage [CT] and no-till [NT]); crop rotation: 2-year corn (Zea mays L.)–soybean (Glycine max L.), 3-year corn–soybean–oat (Avena sativa L.), and 4-year corn–soybean–oat–wheat
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Long-term compost use and high frequency low concentration fertigation reduce N2O emissions from a California almond orchard Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-07 Patrick K. Nichols, David R. Smart, Majdi Abu-Najm, Patrick Brown, Thomas Harter, Kerri L. Steenwerth
Using compost as an agricultural amendment offers a means to reduce organic waste, as mandated in the US state of California (SB 1383). Compost can improve soil physical characteristics and soil carbon content by increasing soil organic matter. We examined the effect of compost application (7-year duration) on soil nitrous oxide (N2O) emissions, inorganic nitrogen (N) pools, soil temperature and water
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Sustaining organic matter in forest soils: What we have learned and what is left Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-07 Cindy E. Prescott
A concerted research effort over the last three decades has transformed our understanding of the processes through which soil organic matter (SOM) is formed. Although recalcitrant plant litter is important, especially for particulate organic matter, we now know that a large proportion of SOM, particularly the more persistent material associated with soil minerals, has been transformed by soil microorganisms
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Topographic correction of visible near-infrared reflectance spectra for horizon-scale soil organic carbon mapping Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-12-03 Alyssa M. Duro, Daniel R. Hirmas, Hoori Ajami, Sharon A. Billings, Xi Zhang, Li Li, Alejandro Flores, Victoria Moreno, Xiaoyang Cao, James Guilinger, Ewan Oleghe, Daniel Giménez, Andrew Gray, Pamela L. Sullivan
Understanding soil organic carbon (SOC) response to global change has been hindered by an inability to map SOC at horizon scales relevant to coupled hydrologic and biogeochemical processes. Standard SOC measurements rely on homogenized samples taken from distinct depth intervals. Such sampling prevents an examination of fine-scale SOC distribution within a soil horizon. Visible near-infrared hyperspectral
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On-farm evaluations of overhead irrigation sprinkler packages at full and reduced rates Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-11-20 Jonathan Holt, Matt Yost, Earl Creech, Dean Winward, Burdette Barker
Irrigation is a critical resource in meeting the global demand for food, feed, fiber, and fuel. One water optimization method with high potential and interest is the use of more efficient irrigation systems. In many areas where pivots are used, the most common sprinkler package is mid-elevation sprinkler application (MESA), which typically has application efficiencies near 80%. Low-energy precision
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Biochar–manure impacts wheat and canola grain productivity, dry matter partitioning, and protein content in western Canada Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-11-10 Tien Weber, Guillermo Hernandez Ramirez, Sylvie Quideau, M. Derek MacKenzie
Amending soil with manure from cattle fed biochar (BC) (biochar–manure [BM]) is a potential best management practice to improve plant nutrition in the circular economy. Yet, information concerning the agronomic performance of BM under temperate field conditions is scarce. A 2-year study on a Gray Luvisol was conducted to determine the effect of BM on the crop growth of spring wheat (Triticum aestivum
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Lime microdosing: A new liming strategy for increased productivity in acid soils Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-11-09 Sampson Agyin-Birikorang, Raphael Adu-Gyamfi, Davie M. Kadyampakeni, Rachel A. Chambers, Ignatius Tindjina, Haruna W. Dauda
Despite the effectiveness of the fertilizer microdosing technique, lime microdosing (LMD) to alleviate the negative impacts of soil acidity has not been comprehensively assessed. In a 3-year study at four sites across three countries (one in the United States, two in Ghana, and one in Burkina Faso), we evaluated the effectiveness of the microdosing technique for lime application to alleviate the adverse
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Moss crusts mitigate the negative impacts of shrub mortality on the nutrient multifunctionality of desert soils Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-11-01 Qing Zhang, Benfeng Yin, Shujun Zhang, Yonggang Li, Yongxin Zang, Xiaoying Rong, Xiaobing Zhou, Ye Tao, Yuanming Zhang
The distribution of biological soil crusts (BSCs) and shrubs in temperate deserts often forms a common landscape surface feature. As climate change continues, desert shrubs experience varying rates of mortality, which can have severe negative impacts on soil structure and function. However, it remains uncertain whether moss crusts, prevalent beneath shrub canopies, can mitigate the effects of shrub
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Variability of soil thermal diffusivity in three Iowa fields Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-31 Ibrahim N. Nassar, Ahmed M. Abdallah, Robert Horton
Soil thermal properties influence the rates of chemical and biological reactions in the soil, seed germination, crop establishment, and productivity. Soil temperature varies with time and depth, and thermal diffusivity (α) is the main property associated with soil temperature variations. Variations in α within row-cropped fields under long-term tillage practices are not well documented in Iowa fields
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Evaluation of two miniaturized FT-NIR spectrometers for rapid soil property analysis Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-31 Preston T. Sorenson, David Bulmer, Derek Peak
Utilizing reflectance spectroscopy to generate the necessary soil data to drive innovations in precision agriculture and soil management is an increasing focus of agronomic research. One of the key limitations for widespread practical adoption of reflectance spectroscopy is hardware cost, and lower cost hardware is actively being developed. This study evaluated two inexpensive nano Fourier-transform
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Availability of dissolved organic carbon drives differences in microbial nitrogen-cycling processes between two sites with cover crops interseeded into corn Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-21 Andrew J. Curtright, Karen A. Renner, Lisa K. Tiemann
Interseeding cover crops into corn has been proposed as a technique to extend the cover crop growing window, but interseeded cover crops may reduce nitrogen (N) availability and compete with corn for available nutrients. To assess N-cycling dynamics in soils where cover crops have been interseeded into corn for 1 or 2 years, plots were established in duplicate at two sites in Michigan with differing
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Rapid soil harvesting using a novel soil auger system for farm-scale soil carbon estimates Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-18 Kelsey H. Jensen, Chloe S. Faehndrich, Eliana Colzani, Morgan L. McClure, Kristofer Covey
Soil sampling at the landscape scale is increasingly in demand for assessing C sequestration projects in agroecosystems. Efforts to decrease sampling costs across large areas have thus far largely ignored improved soil harvesting tools as a means of decreasing sampling time and effort. Rigorous analysis of trade-offs in speed and accuracy among soil harvesting methods is needed. Here, we compare two
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Long-term integration of bahiagrass into a cover-cropped and strip-tilled peanut–cotton rotation has a limited effect on soil carbon and other soil properties Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-12 Gabriel Maltais-Landry, Michael James, Chris Wilson, Lesley Schumacher, Zane Grabau, Sudeep Sidhu, Sheeja George
Integrating a perennial forage grass like bahiagrass (Paspalum notatum Flugge) into the traditional rotation of cotton (Gossypium hirsutum L.) and peanut (Arachis hypogaea L.) increases yields and reduces irrigation needs in the Southeast United States. However, the long-term effects of this sod-based rotation (SBR) on soil properties remain unclear. Eighteen years after establishing SBR and the traditional
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Soil protein: A key indicator of soil health and nitrogen management Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-09 Katherine Naasko, Tvisha Martin, Christian Mammana, Jacob Murray, Meredith Mann, Christine Sprunger
Monitoring soil nitrogen (N) dynamics in agroecosystems is foundational to soil health management and is critical for maximizing crop productivity in contrasting management systems. The newly established soil health indicator, autoclaved-citrate extractable (ACE) protein, measures an organically bound pool of N. However, the relationship between ACE protein and other N-related soil health indicators
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Soil carbon mineralization, enzyme activities, and crop residue decomposition under varying soil moisture regimes Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-06 Amitava Chatterjee, Jason M. Taylor, Alana Strauss, Martin A. Locke
In the Lower Mississippi River Basin, farmlands are flooded in late fall and winter by impeding drainage to provide a habitat for migratory birds stopover. A laboratory incubation study was conducted to study the influence of temporary wetting of these soils on carbon (C) and nitrogen (N) mineralization from residue decomposition. Surface soils (0–15 cm) were collected from fields with clay and silty
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Optimization of sample preparation and data evaluation techniques for X-ray fluorescence prediction of soil texture, pH, and cation exchange capacity of loess soils Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-06 Isabel Greenberg, Anja Sawallisch, Jan Stelling, Michael Vohland, Bernard Ludwig
Use of X-ray fluorescence (XRF) spectrometry for estimation of soil texture, pH, and cation exchange capacity (CEC) is desirable given the time-consuming nature of traditional methods. Recent studies have shown promising results; however, further investigation is required to determine the effects of sample preparation and data evaluation techniques on accuracy. Our objective was to compare (I) a simple
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Predicting nitrogen mineralization from dairy manure and broadleaf residue in a semiarid cropping system Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-10-06 April B. Leytem, Amber D. Moore, Christopher W. Rogers, Robert S. Dungan
Approximately 37% of US milk production occurs in semiarid regions, providing an opportunity to recycle manure nutrients through a variety of cropping systems. Accurate prediction of nitrogen (N) mineralization is critical to determine manure application suitability in intensive irrigated agriculture as many crops in the region have quality parameters that are sensitive to N. Research was conducted
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Soil carbon increase from crop roots and amendments still present twelve years later Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-29 Stewart B. Wuest
Soil organic carbon was measured after surface application of equal C amounts from various C sources to fallow soil or a winter wheat crop for five consecutive years. Municipal biosolid produced the largest gain, followed by manure and alfalfa (Medicago sativa L.) foliage. Wheat (Triticum aestivum L.) straw, sucrose, and wood sawdust were not different than no addition. These effects were additive
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No-till marginally mitigates the impact of harvesting corn stover on soil microbial parameters Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-21 Salvador Ramirez, Virginia L. Jin, Lance M. Gunderson, Marty R. Schmer, Kathryn J. Hanford, Elizabeth S. Jeske, Rhae A. Drijber
Harvesting corn stover can negatively impact soil chemical and physical properties, but less is known regarding its effects on soil microbiology. We evaluated the impact of corn (Zea mays L.) stover removal level (SRL) on soil microbial biomass (MB) and extracellular enzyme activities (EEAs) in irrigated, continuous corn located in eastern Nebraska. Soil fatty acid-methyl esters (FAMEs) and EEA of
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Influence of plasticity and porewater salinity on shrinkage and water retention characteristics of biochar-engineered clays Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-21 Weiling Cai, Sanandam Bordoloi, Cheng Zhu, Chandra Bhanu Gupt
Clay-engineered barriers might be subjected to soil salinization issues under climate change. A recently emerged desalinization method is achieved by modifying clays using biochar. However, unsaturated soil responses of biochar-engineered clays in saline environments under drought conditions remain unknown. This study aims to investigate soil shrinkage and water retention characteristics of biochar-amended
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Micronutrients in coated phosphate fertilizer improve precision distribution and nutrient use efficiency of soybean Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-20 Ana Paula Pereira Nunes, Thalita Takayama, Leonardo Fernandes Sarkis, Douglas Guelfi
Challenges regarding uniform micronutrient distribution and P-use efficiency in agricultural soils are common. Micronutrients can be added as coated P fertilizers, creating multi-nutrient fertilizers for crops to address this issue. The objective of this study was to quantify the diffusion and availability of P, B, Cu, Mn, and Zn in coated P fertilizers. Another objective was to evaluate the nutrient
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Effects of conservation practices on rainfed maize yield, furrow water infiltration, and soil moisture for surface sealing loam soils in the Yazoo-Mississippi Delta Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-20 Jacob P. Rix, Tsz Him Lo, Drew M. Gholson, G. Dave Spencer, Gurbir Singh
Decades of intense tillage have created the problem of surface sealing in loam soils across the Mid-South United States and beyond. These soils exhibit low organic matter, poor aggregate stability, and ultimately low infiltration rates that decrease rainfed crop productivity and increase irrigation water demand. This research quantified the effects of soil management practices on rainfed maize (Zea
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Automated hanging water column for characterizing water retention and hysteresis of coarse-textured porous media Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-20 Chihiro Dixon, Adam Blakeslee, Melanie Mills, Wenyi Sheng, Scott B. Jones
Modeling and characterizing hysteretic water retention is critical for predicting hydrodynamic behavior in porous media. This is especially true in coarse-textured media used in geotechnical engineering, greenhouse, and landscape industries, where subtle changes in water status may lead to plant stress. However, based on the traditional hanging water column method, water retention measurements are
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Multinational prediction of soil organic carbon and texture via proximal sensors Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-20 Marcelo Mancini, Renata Andrade, Sérgio Henrique Godinho Silva, Rogério Borguete Alves Rafael, Swagata Mukhopadhyay, Bin Li, Somsubhra Chakraborty, Luiz Roberto Guimarães Guilherme, Autumn Acree, David C. Weindorf, Nilton Curi
Novel technologies help to monitor the environmental impact of human activities, but tests involving datasets from several countries, encompassing a large variability of soil properties, are still scarce. This study utilized proximal sensors to predict soil organic carbon (OC) and soil texture of samples from Brazil, France, India, Mozambique, and United States. A total of 1749 samples were analyzed
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Issue Information Soil Sci. Soc. Am. J. (IF 2.9) Pub Date : 2023-09-13
On the cover: One of Haleakalā Ranch's most productive pastures looking west toward Kahului. This photo was taken at the sampling location for pedon HR, which is classified as a Humic Haplustand. See R.C. Hodges & J.L. Boettinger, “Predicting the extent of andic soils across western Haleakalā, Maui,” https://doi.org/10.1002/saj2.20559. Photo by Ryan Hodges.