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        <title>Frontiers in Soil Science | New and Recent Articles</title>
        <link>https://www.frontiersin.org/journals/soil-science</link>
        <description>RSS Feed for Frontiers in Soil Science | New and Recent Articles</description>
        <language>en-us</language>
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        <pubDate>2026-08-16T14:50:43.74+00:00</pubDate>
        <ttl>60</ttl>
        <item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1844190</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1844190</link>
        <title><![CDATA[Soil health in the vineyards of North-Western Italy]]></title>
        <pubdate>2026-08-13T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Sara Negri</author><author>Silvia Stanchi</author><author>Daniele Eberle</author><author>Paolo Sabbatini</author><author>Eleonora Bonifacio</author>
        <description><![CDATA[IntroductionSoil health is the ability of soil to provide ecosystem services to the best of its potential, and soil health indexes (SHI) have been developed to capture the physical, chemical and biological aspects of soil health. However, in viticulture, high-quality wines are typically achieved when grapevines experience moderate stress, which promotes the biosynthesis of secondary metabolites. The assessment of soil health is often aimed at maximizing crop yield, and SHI may therefore provide unsuitable results in viticulture.MethodsIn this study, we analyzed the characteristics of more than 2,800 vineyard soils from a soil database in North-Western Italy, a region renowned for high-quality wines. We calculated the SHI using the Comprehensive Assessment of Soil Health (CASH), and evaluated whether appellation areas differ from the broader background of vineyard soil properties.ResultsThe most common red-berry varieties grow on significantly different soils from the other grapevines, richer in clay and carbonates, with low contents of extractable microelements and phosphorus. Areas designated as Denominazione di Origine Controllata e Garantita (DOCG), representing the highest quality classification of Italian wines, differ from Denominazione di Origine Controllata (DOC) areas. Although DOCG vineyards generally exhibit lower chemical fertility, they show more favorable physical soil health indicators.DiscussionThis suggests that the terroir of the DOCG wines results from a combination of inherent site characteristics, contrasting chemical and physical soil properties, and human management practices, aimed at reducing grapevine vigor in conditions where water availability is relatively high.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1908985</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1908985</link>
        <title><![CDATA[Bioavailable metals, microbial community dysfunction, and plant growth constraints in a tropical mining waste dump: implications for ecological risk assessment and remediation]]></title>
        <pubdate>2026-08-13T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Lisha Huang</author><author>Zhibo Wu</author><author>Biwei Hu</author><author>Guangqi Ma</author><author>Xuezhe Zhu</author><author>Zhiqi Long</author><author>Mingjiang Zhang</author>
        <description><![CDATA[IntroductionMining waste dumps in tropical regions suffer severe ecological degradation with plant growth inhibition, yet the synergistic limiting factors remain unclear.MethodsThis study systematically assessed a tropical mining waste dump (Democratic Republic of the Congo), analyzing soil physicochemical properties, total/bioavailable metals, and microbial community structure/function of four soil types (KE, PG, TS, YS), alongside on-site water quality.ResultsResults showed three core limiting factors for plant growth: (1) Severe metal phytotoxicity, with KE's bioavailable Cu (261.4667 mg/kg) exceeding the toxicity critical value and TS's total Cu/Co surpassing USEPA screening levels; (2) Deteriorated soil physiochemistry, including water content imbalance, severe salinization in PG, and extreme N/P/K deficiency in KE/TS/YS; (3) Microbial community dysfunction, featuring low α-diversity, dominance of metal-tolerant genera, scarce plant growth-promoting rhizobacteria, and weak nutrient cycling functions. These factors formed a "toxicity-deficiency-dysbiosis" vicious cycle. Notably, on-site water met WHO standards, suitable for restoration irrigation. Correlation analysis revealed bioavailable metals shaped microbial communities, and PG's salinization stemmed from abnormal K/S accumulation.Discussion and ConclusionTargeted restoration measures (metal immobilization, soil physicochemical improvement, microbial function enhancement) were proposed. This holistic study fills the gap in tropical mining waste dumps, providing scientific support for ecological risk assessment and restoration of similar regions globally.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1876686</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1876686</link>
        <title><![CDATA[Soybean-driven microbiome remodeling of soil metabolism enhances nano-ZnO-assisted remediation of TPH-contaminated soil]]></title>
        <pubdate>2026-08-12T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Jie Xu</author><author>Yi Liu</author><author>Jian Yun</author><author>Shiman Su</author><author>Xiaopeng Huo</author><author>Zhenhuan Yang</author><author>Kejun Lin</author><author>Chunling Tang</author>
        <description><![CDATA[IntroductionSustainable strategies are needed to remediate total petroleum hydrocarbon (TPH)-contaminated soils.MethodsA 90-day pot experiment combined soybean cultivation with different concentrations of nano-zinc oxide (nano-ZnO), followed by soil physicochemical, amplicon sequencing, microbial network, metabolomic, and multi-omics analyses.ResultsCombined application of soybean and 60 mg/kg nano-zinc oxide (nano-ZnO) significantly enhanced soil fertility and enzyme activities, achieving a 68.7% total petroleum hydrocarbon (TPH) removal rate over 90 days. Amplicon sequencing revealed soybean cultivation primarily structured bacterial and fungal communities. The rhizosphere buffered microbial diversity against TPH and nanoparticle stress, and co-occurrence networks showed the combined treatment fostered the most complex, stable cross-kingdom interactions. Soil metabolomics indicated a targeted rhizosphere response to nano-ZnO, enriching flavonoids and biosurfactant precursors, contrasting with the non-specific stress response in bare soil. Multi-omics integration identified a functional guild (Pseudomonas, Sphingomonas, Rhodococcus, and Fusarium) associated with TPH dissipation.DiscussionThese results suggest that soybean remodels its rhizosphere microbiome structure and metabolic function to synergize with nano-ZnO, accelerating the recovery of petroleum-contaminated soils.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1959770</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1959770</link>
        <title><![CDATA[Correction: Divergent responses of rhizosphere priming effect to N-P fertilization and plant traits in mandarin orange and alfalfa]]></title>
        <pubdate>2026-08-12T00:00:00Z</pubdate>
        <category>Correction</category>
        <author>Jianfeng Hou</author><author>Limin Zhang</author><author>Jiahui Chen</author><author>Xuqing Li</author><author>Shengke Tian</author><author>Luyi Peng</author><author>Xianfa Ma</author>
        <description></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1880824</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1880824</link>
        <title><![CDATA[Development and evaluation of biochar formulated fertilizers for climate-smart sustainable crop production]]></title>
        <pubdate>2026-08-11T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Alemayehu K. Shembo</author><author>Addisie Geremew</author><author>De’Zarae M. Guthrie</author><author>Kerrington N. Thompson</author><author>Emmanuel O. Ali</author><author>Selamawit Woldesenbet</author><author>Olukayode Kuloyo</author><author>Christian Davies</author><author>Ram L. Ray</author><author>Laura Carson</author>
        <description><![CDATA[Climate-smart agriculture represents a sustainable approach that promotes food production and soil fertility while reducing greenhouse gas (GHG) emissions. Within this framework, organic agriculture serves as a vital strategy as it increases soil carbon, lowers GHG emissions, and supports long-term sustainability. Biochar is a key innovation in this context, enhancing soil carbon sequestration and contributing to GHG mitigation. However, despite its role in soil conditioning, biochar was found to have some limitations related to improving soil nitrogen. Hence, this study was initiated with the aim of developing biochar-formulated fertilizer to complement what biochar lacks and evaluating it on model winter and summer crops. A Randomized Complete Block Design (RCBD) experimental setup was employed, with 17 treatments (including four organic amendments, twelve formulated fertilizers, and a control), each replicated three times. The research followed a two-phase experimental design: an initial screening during the winter season of 2024 using mustard greens as a winter model crop, followed by a summer 2025 trial with sorghum as a summer model crop. Measurements included soil parameters, plant growth performance, and soil GHG emissions (nitrous oxide, N2O), methane (CH4), and carbon dioxide (CO2), analyzed using state-of-the-art methodologies. Among the 17 treatments, five (T6, T7, T8, T15, and T17) demonstrated notable improvements in soil nitrogen content, plant growth, and emission reduction. These five amendments were subsequently compared to standard NPK fertilizer during the summer trial. The findings demonstrated that treatments T7 (40% biochar, 20% chitosan, 40% chicken manure) and T17 (75% biochar, 25% cow manure) markedly improved sorghum growth, yielding results comparable to those observed with the positive control group that received NPK fertilizer. It is evident that these two formulations are substantially mitigating GHG emissions from the soil and improving crop performance. This study suggests that these two biochar-based formulations should be tested on larger farms and with both winter and summer crops to determine their effectiveness and potential for broader use.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1825405</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1825405</link>
        <title><![CDATA[Grazing of cover crops improves soil nitrogen dynamics in organic vegetable systems with minimal soil health tradeoffs]]></title>
        <pubdate>2026-08-11T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Sequoia R. Williams</author><author>Frances Neill</author><author>Sejin Cheong</author><author>Carolyn Chandler-Khayd</author><author>Nicole Tautges</author><author>Niuniu Ji</author><author>Alda F. A. Pires</author><author>Amélie C. M. Gaudin</author>
        <description><![CDATA[Grazing cover crops recouples crop and livestock production with the potential to enhance soil nutrient cycling processes. However, critical knowledge gaps on short-term N release dynamics and soil health outcomes upon adoption currently limit the application of integrated crop–livestock systems in organic vegetable production. The goal of this study was to characterize the benefits and potential tradeoffs of integrating sheep grazing of cover crops in organic vegetable production for soil ecosystem processes, N cycling, and underpinning shifts in microbial communities. We conducted a replicated experiment over 4 years of a vegetable rotation with three treatments: winter fallow, ungrazed cover crop, and grazed cover crop. We found that grazing cover crops did not significantly impact soil physical characteristics such as compaction. While organic carbon pools remained unchanged, grazing increased soil nitrogen in dissolved organic, inorganic, and microbial pools at key moments in crop production, exceeding levels observed under ungrazed cover crops. These increases were 22%, 36%, and 21%, respectively, at 0–15 cm; and 44%, 100%, and 22%, respectively, at 15–30 cm. Grazing did not lead to increased potentially leachable nitrate despite greater inorganic nitrogen pools during the cropping season. Cover crops, both grazed and ungrazed, lowered soil pH compared to fallow. Soil microbes responded rapidly to shifts in resources associated with grazing, with increased relative bacterial abundance, especially Gram (+) (+34%), and a decrease in the fungi:bacteria ratio (−64%) compared to no livestock integration. There was a trend toward less carbon in the particulate organic matter fraction (POM-C) after 4 years of winter grazing, highlighting the need for longer-term assessments. This research suggests that organic farmers can utilize grazing to strategically improve the timing of nitrogen release for their vegetable crops, with minimal tradeoffs in terms of physical properties, when grazing implementation follows best management practices.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1893513</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1893513</link>
        <title><![CDATA[Multi-omics reveals rhizosphere soil metabolismte-microbiota interactions in different varieties of sorghum under nutrient-deficient stress]]></title>
        <pubdate>2026-08-07T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Suxian Yan</author><author>Huiming Li</author><author>Yuzhong Cheng</author><author>Zuoyi Li</author><author>Hongmei Shi</author>
        <description><![CDATA[IntroductionSoil microorganisms and metabolites are the central elements of rhizosphere microenvironment, with substantial effects on nutrient acquisition, stress resilience, and yield performance in sorghum.MethodsIn this study, root antioxidant enzyme activity, malondialdehyde (MDA) content, and soil properties from Jinnuo 101 and Jinnuo 102 were compared under low-nutrient condition. Changes in bacterial community structure and metabolite composition of rhizosphere and bulk soils from two sorghum cultivars were characterized using 16S rDNA high-throughput sequencing and liquid chromatography-mass spectrometry (LC-MS).ResultsJinnuo 102 exhibits greater tolerance to low-nutrient stress conditions compared with Jinnuo 101. Under low-nutrient stress, Actinobacteria, Acidobacteria, and Bacillobacteria were significantly more abundant in sorghum rhizosphere soil than bulk soil. The Jinnuo 102 rhizosphere soil presented significantly higher Actinobacteria abundance, whereas Jinnuo 101 was significantly enriched in Cyanobacteria (P < 0.05). Metabolic pathway analysis identified the significant upregulation of “Biosynthesis of phenylpropanoids”,“Glycerophospholipid metabolism”, “Tryptophan metabolism”, and “ABC transporters”, along with the evident downregulation of “Linoleic acid metabolism” in rhizosphere soil. Biosynthesis of phenylpropanoids was significantly upregulated in rhizosphere soil of Jinnuo 102. The upregulated rhizosphere metabolites were mainly terpenoids, fatty amides or fatty acids, phenolic acids, and carbohydrates. Higher level of phenolic acids was observed in Jinnuo 102.ConclusionThe study reveals that tolerant sorghum enhances low-nutrient resistance by coordinately upregulating phenylpropanoid pathways and enriching beneficial rhizosphere bacteria. Theseresults provide a theoretical basis for improving sorghum tolerance to nutrientpoor conditions through regulating microbe-metabolite interactions.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1846346</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1846346</link>
        <title><![CDATA[Urban soil microbiomes exhibit taxonomic and functional potential for enhanced contaminant cycling]]></title>
        <pubdate>2026-08-06T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Izabel L. Stohel</author><author>Young C. Song</author><author>Anna B. Turetcaia</author><author>Andrew J. Wilson</author><author>Dietrich Epp Schmidt</author><author>Stephanie A. Yarwood</author><author>Andrew Townsend</author><author>Emily B. Graham</author>
        <description><![CDATA[IntroductionUrbanization is a leading cause of global biodiversity loss, but its effects on soil microorganisms and biogeochemistry remain uncertain. Although urban soil microbiomes are influenced by common anthropogenic processes, generalizable patterns in how urbanization shapes their composition and functional potential are lacking. Identifying such patterns is essential for understanding cities’ roles in biogeochemical processes and managing continued urban expansion.MethodsWe re-analyzed soil metagenomic sequences from the Global Urban Soil Environment Ecology Network (GLUSEEN) to identify coordinated changes in microbial taxonomy and functional potential and to determine core taxa and metabolisms across five global cities spanning multiple ecoregions and management regimes.ResultsWe identified 111 gene annotations representing core urban soil functions that were present across all cities but rare in reference soils (<5% occurrence). Across gradients from low to high urban land use, nitrogen, trace and heavy metal, glycerol, and fructose/fructan metabolic processes were associated with more highly urbanized areas. Core urban microbial taxa, defined by their overrepresentation in urban land uses relative to reference soils, included diverse bacterial groups and a more constrained set of methane- and nitrogen-cycling archaea.DiscussionThese urban-associated taxonomic and functional signatures may serve as indicators of altered nutrient and contaminant cycling and provide a foundation for monitoring soil health and informing management strategies in rapidly urbanizing landscapes. More broadly, this work generates testable hypotheses and improves our ability to predict and manage how urban soils influence ecosystem services, contaminant dynamics, and global environmental change.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1824562</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1824562</link>
        <title><![CDATA[Evaluating soil mesofauna as indicators of soil health across agricultural and forestry systems]]></title>
        <pubdate>2026-08-05T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Norbert Flórián</author><author>Veronika Gergócs-Winkler</author><author>Miklós Dombos</author>
        <description><![CDATA[IntroductionAssessing whether land-use practices promote soil sustainability is increasingly important as agricultural technologies aim to support long-term soil health. Soil mesofauna provide valuable indicators of these patterns, yet species-level assessment is labor-intensive and requires specialist expertise. Trait-based approaches such as QBS-ar offer a simplified alternative, but their performance across contrasting land-use systems remains insufficiently understood.MethodsWe examined mesofaunal communities in two experiments applying conservation-oriented management: conventional versus regenerative agriculture, and diverse forestry treatments contrasted with continuous-cover forests. Taxonomic indicators (species richness, diversity, density) were assessed alongside trait- and ecomorphology-based measures (QBS-ar, life-form traits, and ecomorphological groups) to determine which metrics most effectively reflect management impacts.ResultsMesofaunal responses varied markedly between land-use types. In intensively managed agricultural systems, species richness, density, and functional responses derived from ecomorphological groups and life-form traits were sensitive to management intensity, whereas in forest environments, although initial disturbances were strong, responses were weaker and more variable because recovery processes were already underway. Seasonal sampling was essential, as indicator sensitivity varied across taxa.DiscussionOverall, traditional metrics such as density and species richness may fail to detect management effects in structurally complex or lightly disturbed systems. In contrast, QBS-ar provided a rapid and broadly applicable assessment of disturbance, while other trait-based measures captured subtle functional responses across seasons and land-use types, highlighting their value as complementary tools for soil biodiversity monitoring.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1895267</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1895267</link>
        <title><![CDATA[Tourist trampling reduces soil hydrolytic enzymes across three vegetation types at different successional stages on Jigong Mountain]]></title>
        <pubdate>2026-08-05T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Jin Wang</author><author>Jingrui Li</author>
        <description><![CDATA[Tourism inevitably induces ecological impacts on soil in tourist destinations while contributing to regional economic development. Previous studies have well documented the negative effects of trampling on soil physical structure and nutrient dynamics; however, the consequences for soil hydrolytic enzyme activities and their potential vegetation-dependent differences remain poorly understood. Here, we examined trampling-induced changes in soil hydrolytic enzyme activities in planted grasslands, secondary deciduous forests, and secondary coniferous forests on Jigong Mountain, Central China. Our results showed that: (1) planted grasslands had significantly lower baseline soil hydrolytic enzyme contents compared to the secondary forests; (2) tourist trampling reduced soil hydrolytic enzyme contents by 11.7-53.0% across three vegetation types, with planted grasslands exhibiting less reduction (11.7-40.5%) than coniferous (25.0-53.0%) and deciduous forests (32.6-50.9%), indicating grassland soil had a stronger resistance to trampling than the other two types; (3) multiple stepwise regression analysis revealed that decreased soil total nitrogen by trampling was the predominant regulator of soil hydrolytic enzyme contents across different vegetation types. Our findings suggest that trampling homogenizes soil hydrolytic enzyme activity among different vegetation types, indicating a loss of spatial heterogeneity in microbial-driven biochemical processes. The finding that soils from different vegetation types showed different response magnitudes to trampling indicates that the design of tourist routes can be adjusted based on such differences to reduce the negative impacts caused by trampling.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1903905</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1903905</link>
        <title><![CDATA[Heavy metal and pesticide toxicity in agricultural soils across a farming intensity gradient in Central Zambia]]></title>
        <pubdate>2026-08-04T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Aaron C. Siyunda</author><author>Davies Lungu</author><author>Natasha M. Mwila</author><author>Jones Yengwe</author><author>Akbar A. Ganatra</author><author>Hemant Tripathi</author><author>Steven M. Sait</author><author>Rupert J. Quinnell</author><author>Martin Simuunza</author><author>Lavel Moonga</author><author>Xiaomei Yang</author><author>Rima Osman</author><author>Luuk Fleskens</author><author>Violet Nkhoma</author><author>Andy Dougill</author><author>Erastus Mwanaumo</author>
        <description><![CDATA[Routine pesticide applications are an under‑recognized pathway for heavy metal accumulation in agricultural soils, particularly in sub‑Saharan Africa where synthetic pesticide use is expanding rapidly but systematic monitoring remains limited. This study investigated the co‑occurrence of heavy metals and pesticides in soils across farming landscapes of Central Province, Zambia, focusing on Chibombo and Mkushi Districts. Four metals (Cd, Pb, Cu, Zn) and twelve pesticides; acetamiprid, acifluorfen, chlorpyrifos, clodinafop propargyl, lambda cyhalothrin, cypermethrin, emamectin benzoate, fomesafen, haloxyfop methyl, lufenuron, profenofos, glyphosate, and its metabolite AMPA, were assessed in commercial, emergent, and smallholder farming systems using pollution indices (enrichment factor and ecological hazard index) and correlation analysis. Results showed significant differences in the accumulation of Cu, Cd, and Zn across farming systems, with commercial farms exhibiting higher Cd and Cu concentrations than emergent and smallholder systems, and heavy metals being significantly enriched in topsoils (0-20 cm) compared to deeper layers. Smallholder farms had high insecticide residues, especially chlorpyrifos (1494-5961 µg/kg), emergent farms showed elevated insecticide and herbicide levels, notably cypermethrin and fomesafen, while commercial farms were dominated by herbicides including acifluorfen, fomesafen, glyphosate, and AMPA. Correlation analysis revealed significant associations between metals and certain pesticides, with chlorpyrifos and profenofos residues showing consistent negative correlations with all metals except Cu. Comparative analysis against international soil quality standards indicated heavy metals remained below WHO limits except for Cu and Cd in some commercial farms. These findings underscore significant ecological and food safety risks, highlighting the urgent need for systematic monitoring and integration into policy frameworks.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1822862</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1822862</link>
        <title><![CDATA[Divergent responses of rhizosphere priming effect to N-P fertilization and plant traits in mandarin orange and alfalfa]]></title>
        <pubdate>2026-08-03T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Jianfeng Hou</author><author>Limin Zhang</author><author>Jiahui Chen</author><author>Xuqing Li</author><author>Shengke Tian</author><author>Luyi Peng</author><author>Xianfa Ma</author>
        <description><![CDATA[IntroductionThe rhizosphere priming effect (RPE) accelerates soil organic matter decomposition and acts as a pivotal feedback mechanism in the global carbon cycle. However, the regulatory role of distinct plant functional traits remains poorly understood. This study aimed to examine how nitrogen-phosphorus (N-P) fertilization levels and specific plant traits interactively shape the magnitude and direction of RPE.MethodsWe conducted a pot experiment comparing Citrus reticulata Blanco (Mandarin orange, a C3 shrub) and Medicago sativa L. (alfalfa, a C3 herbaceous legume) across an N-P fertilization gradient, including low N-P fertilization (P4N10: 4 g P m-2 + 10 g N m-2), high N-P fertilization (P8N20: 8 g P m-2 + 20 g N m-2), and corresponding unplanted controls. Plant biomass distribution, root chemical traits such as root nitrogen concentration, soil pH, extracellular enzyme activities, and RPE were measured at Days 45 and 90. ANOVA and regression analyses were used to identify the main drivers of RPE.ResultsBoth species induced predominantly positive RPEs across sampling periods and fertilization gradients, ranging from −1.5% to +127%, but the underlying drivers shifted with nutrient availability. Under low fertilization, leaf biomass emerged as the best predictor of interspecific variation, explaining 41% of the variance and supporting a “source-strength” mechanism by Day 45. Conversely, under high fertilization, root nitrogen concentration became the dominant driver, explaining 44% of the variance by Day 90 and indicating a shift toward a substrate-quality control mechanism. While fertilization enhanced leaf photosynthetic traits and specific rhizosphere respiration, it concurrently acidified the soil and suppressed extracellular enzyme activities involved in nitrogen mining.DiscussionThe net RPE was determined by the balance between stimulation of plant carbon inputs and direct inhibition of microbial decomposition processes. Overall, our results demonstrate that the plasticity of plant biomass allocation and root chemistry governs RPE variation. Incorporating these trait-specific responses is essential for accurately predicting soil carbon dynamics under changing nutrient regimes.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1864901</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1864901</link>
        <title><![CDATA[Soil texture classification and mapping in semi-arid regions using machine learning and EnMAP hyperspectral data]]></title>
        <pubdate>2026-07-31T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Hassan Mosaid</author><author>Ahmed Barakat</author><author>Mohamed Bayad</author><author>Nora Ezouitine</author><author>Soufiane Hajaj</author><author>Hassan Ouakhir</author><author>Mohammed Hssaisoune</author><author>Khalid El Bahjaouy</author><author>Mohamed El garnaoui</author><author>Lhoussaine Bouchaou</author><author>El Houssaine Bouras</author>
        <description><![CDATA[Soil texture is a fundamental parameter that governs processes in agriculture, water resources management, environmental conservation, and land use planning. Recent advances in remote sensing technologies, particularly hyperspectral imaging, have significantly enhanced the ability to characterize and map soil texture with high precision. Hyperspectral sensors capture detailed spectral data that reveals subtle variations in soil properties, often undetected by conventional methods. The present study evaluates the potential of EnMAP hyperspectral imagery, combined with machine learning (ML), to predict and map soil textural classes in semiarid environments. Three scenarios were assessed: (i) using hyperspectral data alone, (ii) incorporating spectral indices, and (iii) integrating terrain parameters. Four machine learning algorithms, Random Forest (RF), XGBoost, Support Vector Machines (SVM), and k-Nearest Neighbors (KNN), were evaluated for soil textural classification. Among them, SVM consistently outperformed the others across nearly all scenarios, achieving an overall accuracy (OA) and precision of 75% and 79.2%, respectively, under Scenario 1 (hyperspectral bands only), which is identified as the recommended configuration for operational soil textural class mapping using EnMAP data. RF and XGBoost also demonstrated strong performance, confirming their robustness for soil textural classification and mapping. In contrast, KNN yielded the lowest classification accuracy, particularly when spectral indices were included, suggesting limited effectiveness in this context. The incorporation of terrain features improved classification accuracy for kNN model, highlighting the value of multi-source data integration. The obtained findings demonstrate that EnMAP hyperspectral imagery, with specific ML, offers a powerful tool for precise soil textural classes mapping, critical for sustainable agriculture, erosion control, and water management. This approach can provide policymakers and farmers with valuable insights for making data-driven land-use decisions that promote soil health and food security.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1894161</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1894161</link>
        <title><![CDATA[Concentration-dependent effects of atrazine on culturable soil microbial groups and biodegradation in Gerif soil, Sudan]]></title>
        <pubdate>2026-07-31T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Alshfa Kh. A. Elgaber</author><author>Emad H. E. Yasin</author><author>Kornel Czimber</author><author>Awad G. Osman</author><author>Elsiddig A. E. Elsheikh</author>
        <description><![CDATA[Atrazine is widely used for weed control, but its persistence and effects on soil microorganisms remain poorly understood in semi-arid Sudanese soils. This study evaluated the concentration-dependent effects of atrazine on culturable soil microbial groups and its biodegradation in Gerif silty clay loam soil collected from the Blue Nile Bank, east of Khartoum, Sudan. Soil samples were treated with four atrazine concentrations (0.678, 1.69, 3.39, and 5.08 mg g-1 soil) and incubated at 28 ± 1 °C for 150 days. Microbial populations were enumerated at 0, 15, 30, 60, 90, 120, and 150 days using selective culture media, while atrazine residues were quantified by gas chromatography. Atrazine significantly affected culturable microbial groups in a concentration- and time-dependent manner. Organic nitrogen-utilizing bacteria showed inhibition up to 73.6% at the highest concentration after 90 days, while fungal populations were inhibited by up to 70.0% at 3.39 mg g-1 soil after 15 days. Mineral nitrogen-utilizing bacteria were strongly suppressed during the early incubation period, with inhibition reaching 80.7% at 1.69 mg g-1 soil after 30 days, followed by partial recovery and stimulation at later stages. Microorganisms growing on nitrate agar were dominated by Mycobacterium spp., suggesting selective enrichment of atrazine-tolerant culturable taxa. Atrazine degradation began within 15 days and increased progressively during incubation; after 150 days, degradation reached 75.0% at 0.678 mg g-1 soil but only 54.2% at 5.08 mg g-1 soil. Kinetic analysis further showed that atrazine half-life in Gerif soil ranged from 69 to 125 days, with the longest half-life recorded at the highest concentration. These findings indicate that atrazine imposes selective pressure on culturable soil microorganisms and persists longer at higher concentrations in low-organic-matter Gerif soil. The results support optimized herbicide application rates, improved soil organic matter management, and microbial-based remediation strategies in semi-arid agroecosystems.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1820226</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1820226</link>
        <title><![CDATA[Synthesis, optimization, and biosafety assessment of nanozeolite-based slow-release nitrogen fertilizers for spinach beet (Beta vulgaris var. bengalensis)]]></title>
        <pubdate>2026-07-29T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Pooja Lakshmidevarahalli Ramalingappa</author><author>Renu Singh</author><author>Shiva Dhar</author><author>Harshwardhan Choudhary</author><author>Jorge Gardea-Torresdey</author><author>Manoj Shrivastava</author>
        <description><![CDATA[IntroductionThis study investigates the efficacy of synthesized nanozeolite-based nitrogen fertilizers (NZUF and SNZUF) in enhancing nutrient use efficiency, providing controlled-release properties, and ensuring crop safety in Spinach Beet (Beta vulgaris var. bengalensis). Nanozeolites (NZ), due to their high surface area and unique ion-exchange capabilities, offer promising alternatives to conventional nitrogen fertilizers.MethodsThe research involved synthesizing NZ, characterizing their physicochemical properties through FTIR, XRD, SEM, TEM, TGA, and Zeta potential, toxicity, and slow-release studies, followed by pot experiments using the spinach beet crop to evaluate their effect on plant growth, yield, and nutrient uptake.Results and discussionResults indicated that nanozeolite-based fertilizers enhanced nitrogen use efficiency, maintained a sustained nutrient supply, and extended 75% ammonium and nitrate release up to ~48-50 and ~45-48 days, respectively, compared to 10 -15 days for urea. Over two years, T4 (100% SNZUF) yielded 8.67% more than T2 (urea), while T5 (100% NZUF) and T6 (75% SNZUF) had slightly higher yields of 0.87% and 1.09%, respectively, compared to T2. Importantly, no adverse toxic effects were observed in Spinach Beet, providing a strong reassurance of the safe application of these nanofertilizers. This study underscores the potential of nanozeolite-based fertilizers (especially SNZUF) to enhance nitrogen use efficiency, improve crop yield and soil health, and offer a sustainable, eco-friendly alternative to conventional urea for climate-smart agriculture.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1861827</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1861827</link>
        <title><![CDATA[Cross study reveals ubiquitous bacterial taxa across legume rhizospheres]]></title>
        <pubdate>2026-07-27T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Gastón Azziz</author><author>Patricia Vaz Jauri</author>
        <description><![CDATA[The soil adjacent to roots, known as the rhizosphere, harbors a microbial community whose structure differs from that of the surrounding soil. Rhizosphere inhabitants play a significant role in plant health and growth. Identifying the most important players can impact and guide future research in plant-microbial interactions. In this paper, we analyzed and compared the rhizospheric communities of eight economically relevant legume species. We collected publicly available sequencing data and processed them de novo from raw data to the taxonomic assignments of the sequences. The hypothesis of our work was the existence of core bacterial taxa present in most rhizospheres, despite differences in different plant rhizosphere communities. Desmodium and Mimosa rhizospheres harbored high-diversity communities, whereas Lotus and Trifolium rhizospheres harbored low-diversity communities. Although communities from some studies were located outside the main cluster in the ordination plot, this separation was not statistically significant, indicating that the community structure of the different rhizospheres is similar. The most ubiquitous bacterial genera found in the rhizospheres were Mycobacterium, Pseudomonas, Devosia, and Streptomyces. The ubiquity of these bacteria in the rhizosphere of legumes highlights their ability to colonize it and the relevance of this lifestyle to the ecology of these microorganisms.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1934607</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1934607</link>
        <title><![CDATA[Correction: Nutriseed pack innovation: a sustainable solution to minimize ammonia volatilization across soil types]]></title>
        <pubdate>2026-07-24T00:00:00Z</pubdate>
        <category>Correction</category>
        <author>Raju Muthukrishnan</author><author>Nandhakumar M. R.</author><author>S. Ramesh Kumar</author><author>Thangavel Pradeesh Kumar</author>
        <description></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1869636</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1869636</link>
        <title><![CDATA[Long-term effects of integrated organic and inorganic fertilization on soil properties, nutrient use efficiency, and crop yield in a rice–wheat system]]></title>
        <pubdate>2026-07-24T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Sandeep Sharma</author><author>Tanushree Ghosh</author><author>Nihar Gupta</author><author>S. S. Walia</author>
        <description><![CDATA[Understanding the role of integrated nutrient management (INM) practices under intensive farming is essential for restoring soil health, enhancing system resilience to climate variability, and sustaining crop productivity. The present experiment was laid out in a randomized complete block design with seven treatments and three replications, as follows: CT, absolute control (no fertilizer, no organic amendment); NPK50, 50% recommended dose of NPK through fertilizers; NPK100, 100% recommended dose of NPK through fertilizers; NPK50+FYM, 50% recommended dose of NPK through fertilizers + 50% N through farmyard manure; NPK50+WCS, 50% recommended dose of NPK through fertilizers + 50% N through wheat cut straw; NPK50+GM, 50% recommended dose of NPK through fertilizers + 50% N through green manure (Sesbania aculeata); and NPK100+FYM, 100% recommended dose of NPK through fertilizers + 50% N through farmyard manure to rice, while wheat received 100% recommended dose of NPK through fertilizer in all treatments except CT. The results of the present investigation revealed that the inclusion of organic amendments with inorganic fertilizer in the rice crop significantly increased soil properties relative to NPK100. Furthermore, the succeeding wheat crop exhibited significantly higher nutrient uptake and nutrient use efficiency (NUE) under INM compared with inorganic fertilization, reflecting the residual effects of the organic amendments applied to rice in combination with the recommended NPK fertilizer applied directly to wheat. INM treatments showed increase of ~7%–10%, ~6.6%–9.5%, and ~6.5%–9.6% in agronomic efficiency of N, P, and K as compared to NPK100, respectively. Principal component analysis identified microbial biomass carbon, available water content, and cation exchange capacity as the most sensitive soil quality indicators. These findings highlight that long-term substitution of 50% N with organics has a promising effect on sustaining crop yield by improving soil properties and nutrient use efficiency.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1842809</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1842809</link>
        <title><![CDATA[Assessing the ecological quality and reuse potential of bioremediated hydrocarbon-contaminated soils]]></title>
        <pubdate>2026-07-22T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Davide Rossi</author><author>Lorenzo Federico</author><author>Davide Abu El Khair</author><author>Luigi Righini</author><author>Francesca Pittino</author><author>Valentino Suagher</author><author>Sara Villa</author><author>Andrea Franzetti</author>
        <description><![CDATA[Bioremediation is increasingly recognized as a sustainable strategy for improving the environmental quality and supporting the beneficial reuse of hydrocarbon-contaminated soils. By preserving soil agronomic properties, this technique transforms bioremediated soils otherwise classified as waste into potential resources within circular-economy frameworks. However, current compliance criteria are primarily based on chemical thresholds, which do not account for ecological functionality or reuse potential in green infrastructure. In this study, we propose and preliminarily evaluate a multidisciplinary framework integrating chemical parameters, plant bioassays, and soil fauna avoidance tests to assess the ecological compatibility and potential reuse of 13 hydrocarbon-contaminated soils after bioremediation in two treatment plants in Northern Italy. All treated soils met the regulatory chemical limits established for reuse; however, the proposed framework goes beyond compliance by supporting potential reuse decisions based on ecological functionality. The framework was applied through a sequential three-phase approach: (i) phytotoxicity screening based on the germination index (GI), applying an “OR” criterion (GI > 90% in at least one test species, Lepidium sativum or Cucumis sativus); (ii) avoidance assays with Eisenia fetida and Folsomia candida based on Net Response (%); and (iii) assignment to ecological quality classes. In addition, we propose a list of potential green infrastructure applications associated with each ecological quality class. Most bioremediated soils showed no phytotoxic effects and were classified as high ecological quality. Multivariate analysis indicated that environmental variability was structured by texture, nutrient content, and pH rather than residual hydrocarbon concentrations. Hydrocarbon levels alone did not explain biological responses: E. fetida avoidance was associated with nutrient gradients and texture, while C. sativus germination was related to texture components. Microbial community composition, assessed through 16S rRNA sequencing, was strongly associated with nutrient gradients, reflecting integrated soil conditions rather than residual contamination. Overall, the results suggest that bioremediation may contribute to the improvement of soil ecological functionality beyond contaminant reduction. The proposed framework provides an ecological interpretation based on ecotoxicological endpoints and may support evidence-based reuse decisions aligned with the functional capacity of treated soils.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fsoil.2026.1906227</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fsoil.2026.1906227</link>
        <title><![CDATA[Farmers’ and non-farmers’ views on European soil health challenges and management practices at regional scale]]></title>
        <pubdate>2026-07-22T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>M. Abdulaha-Al Baquy</author><author>Natalia Rastorgueva</author><author>Raphael Tiziani</author><author>Daniel Gärttling</author><author>Tanja Mimmo</author>
        <description><![CDATA[The perception of diverse stakeholders with varying levels of involvement in practical soil management is essential for shaping future soil governance and policies, as it provides insights for differing perspectives on key issues such as soil health challenges and corresponding management practices. Against this background, this study aims to investigate the differences between farmers’ and non-farmers’ perceptions regarding: 1) identified soil challenges, 2) effective practices to address these challenges, and 3) feasible practices for improving soil health. To fulfill the aims of this study, an online survey was conducted across ten European regions. Data were collected from 152 municipal-level stakeholders such as farmers/foresters and agricultural/forestry advisors, policymakers/administrators, researchers, and non-governmental organizations (NGOs). The results showed that farmers prioritized soil challenges such as improving soil structure, enhancing soil nutrient use efficiency and increasing water storage capacity, while non-farmers placed greater emphasis on maintaining or increasing soil organic carbon, enhancing soil biodiversity, and avoiding soil erosion. The findings also indicated that stakeholders’ professional backgrounds significantly influence their perceptions of soil challenges (p < 0.05). Farmers and non-farmers identified different effective soil health practices to tackle a specific soil challenge. Among the soil health practices evaluated, non-inversion/reduced tillage, cover/catch crop, diversifying crop rotation, permanent soil cover, and use of organic fertilizers were identified by farmers and non-farmers as effective across all challenges. However, both groups shared similar views on the feasibility of these soil health practices. Therefore, viewpoints of diverse stakeholders on the effectiveness and feasibility of practices to tackle soil health challenges should be a priority for soil sustainability in Europe.]]></description>
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