Journal of Plant Nutrition and Soil Science最新文献

{"title":"Iron Fertilization of Soybean Genotypes Differing in Iron Use Efficiency Under Alkaline Conditions: Implications for Yield and Seed Nutritional Quality","authors":"Amir Maqbool,&nbsp;Ramazan Ilhan Aytekin,&nbsp;Sevgi Çalişkan,&nbsp;Emre Aksoy","doi":"10.1002/jpln.70073","DOIUrl":"https://doi.org/10.1002/jpln.70073","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Soybean, a nutritionally important protein- and oil-rich legume, is highly sensitive to iron (Fe) deficiency under alkaline conditions, where reduced Fe availability limits growth, yield, and seed quality. Effective biofortification therefore requires increasing seed Fe while reducing phytate that restricts Fe bioavailability.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We evaluated IDC-tolerant and sensitive soybean cultivars under graded Fe-EDDHA supply, focusing on Fe acquisition, micronutrient interactions, and seed nutrition.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A greenhouse pot experiment used peat:perlite (2:1) at pH 5.7 (control) or 8.7 (alkaline). Two IDC-tolerant (Arısoy, Sa–88) and two IDC-sensitive (Nova, Atakişi) cultivars received a single Fe-EDDHA application (0.75–2.60 mg Fe kg⁻¹ substrate) under alkalinity with zero-Fe controls. Physiological traits, ferric reductase activity, minerals, Fe-homeostasis gene expression, and seed nutritional characteristics were assessed at defined developmental stages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Alkalinity reduced leaf Fe status and seed Fe concentrations, with stronger penalties in IDC-sensitive cultivars (48% decrease vs. 15% in tolerant cultivars under Fe deficiency). Fe-EDDHA improved chlorophyll-related traits, leaf Fe recovery, seed Fe, protein content, and yield components more efficiently in tolerant cultivars, whereas sensitive cultivars required higher Fe doses for partial recovery. Fe deficiency increased seed phytate and phosphorus, while Fe resupply reduced phytate in most cultivars. Expression patterns of <i>FRO/IRT1-like</i>, <i>OPT3</i>, and <i>FER</i> supported genotype-dependent differences in Fe acquisition, long-distance signaling, and storage.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Combining genotype selection with targeted Fe fertilization improves Fe nutrition, yield-related traits, and seed nutritional quality under alkaline conditions, supporting integrated strategies for soybean Fe biofortification.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"544-557"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global Research Trends in Soil Organic Carbon Under Long-Term Fertilization: A Bibliometric Analysis (2005–2025)","authors":"Gandikota Rupa Lalitha,&nbsp;S. Meena,&nbsp;G. Sridevi,&nbsp;S. Karthikeyan,&nbsp;Balaji Kannan,&nbsp;K. Boomiraj,&nbsp;Abinash Das","doi":"10.1002/jpln.70072","DOIUrl":"https://doi.org/10.1002/jpln.70072","url":null,"abstract":"<div>\u0000 \u0000 <p>Soil organic carbon (SOC) is an important component influencing soil fertility, ecosystem functioning, and climate change mitigation. This study presents a comprehensive bibliometric analysis of global research on SOC under long-term fertilization from 2005 to the first quarter of 2025. A total of 3171 peer-reviewed articles indexed in Scopus were analyzed using VOSviewer and Biblioshiny to evaluate publication trends, collaboration networks, funding patterns, and thematic evolution. The annual growth rate of publications was 5.03%, with China, the United States, and India emerging as the leading contributors. Institutional and co-authorship analyses revealed strong international collaboration, although research output was geographically concentrated. Keyword co-occurrence and clustering analyses identified dominant themes including “soil organic carbon,” “carbon sequestration,” and “long-term fertilization,” with increasing attention to microbial processes, carbon fractions, and climate-smart management strategies in recent years. The mapped literature indicates a consistent research emphasis on integrated nutrient management practices, particularly combined organic and inorganic fertilization, in relation to SOC enhancement and stabilization. Emerging research frontiers include microbial necromass, isotopic tracing, metagenomics, and modeling approaches for carbon-use efficiency. Despite substantial growth in the field, knowledge gaps remain regarding microbial-mediated carbon dynamics and long-term system resilience. This bibliometric synthesis provides a structured overview of global research trajectories and identifies priority directions for advancing sustainable soil management.</p>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"401-428"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: J. Plant Nutr. Soil Sci. 4/2026","authors":"","doi":"10.1002/jpln.70095","DOIUrl":"https://doi.org/10.1002/jpln.70095","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"399-400"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interaction Between Nitrogen Forms, Phosphorus Forms, and Mineral Phases Drives Phosphorus Limitation and Uptake by Ryegrass in a Model System","authors":"Issifou Amadou,&nbsp;Michel-Pierre Faucon,&nbsp;Josep Peñuelas,&nbsp;Jordi Sardans,&nbsp;David Houben","doi":"10.1002/jpln.70086","DOIUrl":"https://doi.org/10.1002/jpln.70086","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Nitrogen (N) and phosphorus (P) cycles significantly influence ecosystem functioning, yet the interactions between their chemical forms and mineral phases in determining P limitation remain poorly understood.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We investigated the impact of interactions between P forms (organic vs. inorganic), N forms, and mineral types on plant P uptake and aimed to understand how these interactions affect rhizosphere processes governing P availability, including pH modifications and phosphatase activity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Ryegrass (Lolium multiflorum) plants were grown in RHIZOtest-like devices in the presence of three P compounds (inositol hexakisphosphate—IHP, glycerophosphate—GLY, and inorganic P—IP) adsorbed onto two mineral phases (goethite and kaolinite), combined with two nitrogen forms (NO₃-N and NH₄-N).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>N addition shifted plant nutrition from N to P limitation, with the degree of this shift depending on P form and mineral type. Organic P sources induced stronger P limitation than IP. NO₃-N enhanced P acquisition more effectively than NH₄-N across all treatments. Mechanistically, N addition increased phosphatase activity but simultaneously depleted available P pools, with enzymatic P mobilization being the dominant process rather than pH-mediated effects. Clay minerals (kaolinite) showed lower P limitation than Fe oxyhydroxides (goethite) due to contrasting adsorption mechanisms.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>In this model system, NO₃-N promoted greater P acquisition than NH₄-N through enhanced phosphatase activity rather than pH changes, and P limitation was more severe on Fe oxyhydroxides than on kaolinite. These findings suggest that selecting nitrate-based fertilization and adapting P management to soil mineralogy could help alleviate P limitation.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"593-604"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass Carbon in Harvest Residues of Winter Oilseed Rape Across Fertilizer N Rates: Implications for Carbon Input Estimations in Soil Carbon Models","authors":"Ozan Ozkiper,&nbsp;Iris Vogeler,&nbsp;Lars J. Munkholm,&nbsp;Jørgen Eriksen,&nbsp;Johannes L. Jensen","doi":"10.1002/jpln.70075","DOIUrl":"https://doi.org/10.1002/jpln.70075","url":null,"abstract":"<p><b>Background</b>: Reliable estimation of carbon (C) inputs from above- and belowground residues at different yield levels is crucial, as these inputs drive soil organic carbon (SOC) models for C accounting.</p><p><b>Aims</b>: This study quantifies C inputs from different components of winter oilseed rape (WOSR) and compares them with estimates from various allometric functions.</p><p><b>Methods</b>: The effect of six mineral nitrogen (N) fertilization rates (40, 90, 140, 190, 240, 290 kg N ha⁻¹) was examined on the rapeseed yield and its components (straw, stubble, chaff, and root), assessed at crop maturity, in a Danish field trial on a sandy loam soil. The biological optimum N rate was identified to evaluate rapeseed yield response to fertilization. Additionally, C-TOOL model was utilized to simulate SOC stock changes over time, using fixed C inputs and allometric-based inputs.</p><p><b>Results</b>: The biological optimum N rate for rapeseed yield was 208 kg N ha⁻¹. Stubble, chaff, and fine root biomass remained stable across N rates, supporting fixed C inputs for these components. Straw biomass correlated with rapeseed yield, but the amounts differed from allometric estimations, suggesting refinement in the straw-to-rapeseed yield ratio. SOC model simulations indicated that standardized allometric functions produced higher SOC stock changes with increasing yield (2017–2024). When fixed C input for stubble and chaff (for all years) was combined with the refined straw C input (for WOSR), model outputs more closely matched the SOC measurements.</p><p><b>Conclusions</b>: WOSR showed component-specific responses to varying fertilization rates, highlighting the need for crop-specific residue dynamics in SOC modeling.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"558-570"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field Studies on the Influence of High-Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany","authors":"Joachim Ingwersen,&nbsp;Alexander Schade,&nbsp;Andreas Lehmann,&nbsp;Jonas Trenz,&nbsp;Maja Schreiber,&nbsp;Christoph Drefke,&nbsp;Harald Schramm,&nbsp;Christian Bidlingmaier,&nbsp;Simone Graeff-Hönninger,&nbsp;Thilo Streck,&nbsp;Karl Wieland","doi":"10.1002/jpln.70066","DOIUrl":"https://doi.org/10.1002/jpln.70066","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The SuedLink was planned as a high-voltage direct-current underground cable route. The construction itself is a massive intervention on soil, and during operation, the power cables emit up to 32 W of heat per cable meter at maximum load.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>The study aimed to investigate the impact of the construction and the heat emission of the SuedLink on soils typical of Southwest Germany.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Four test sites, each covering approximately 0.6 ha, were established following best practice along the planned SuedLink route in 2021. Each test site was set up in a fully randomized split-plot design. Heating pipes were installed at a depth of 1.5 m with a target heat emission of 32 W per meter of cable. Each test site was extensively instrumented with temperature, heat flux, and soil moisture sensors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Temperatures 5 cm above the heating pipes at a depth of 1.25 m were 14–16°C higher than the control. In the heated plots, soil temperatures in the center of the plowing horizon at 0.15 m depth were 1–3°C higher than in the control soil. The strip affected by the heat emission had a width of about 10 m. Negative impacts on bulk density, plant-available water, and air capacity were not observed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>During regular operation at a load ≤75%, the average increase in temperature in the plowing horizon at a depth of 0.15 m is expected to be less than 1.6°C in the soils along the SuedLink route in Southwest Germany.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"479-498"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iron Fertilization of Soybean Genotypes Differing in Iron Use Efficiency Under Alkaline Conditions: Implications for Yield and Seed Nutritional Quality","authors":"Amir Maqbool,&nbsp;Ramazan Ilhan Aytekin,&nbsp;Sevgi Çalişkan,&nbsp;Emre Aksoy","doi":"10.1002/jpln.70073","DOIUrl":"https://doi.org/10.1002/jpln.70073","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Soybean, a nutritionally important protein- and oil-rich legume, is highly sensitive to iron (Fe) deficiency under alkaline conditions, where reduced Fe availability limits growth, yield, and seed quality. Effective biofortification therefore requires increasing seed Fe while reducing phytate that restricts Fe bioavailability.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We evaluated IDC-tolerant and sensitive soybean cultivars under graded Fe-EDDHA supply, focusing on Fe acquisition, micronutrient interactions, and seed nutrition.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A greenhouse pot experiment used peat:perlite (2:1) at pH 5.7 (control) or 8.7 (alkaline). Two IDC-tolerant (Arısoy, Sa–88) and two IDC-sensitive (Nova, Atakişi) cultivars received a single Fe-EDDHA application (0.75–2.60 mg Fe kg⁻¹ substrate) under alkalinity with zero-Fe controls. Physiological traits, ferric reductase activity, minerals, Fe-homeostasis gene expression, and seed nutritional characteristics were assessed at defined developmental stages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Alkalinity reduced leaf Fe status and seed Fe concentrations, with stronger penalties in IDC-sensitive cultivars (48% decrease vs. 15% in tolerant cultivars under Fe deficiency). Fe-EDDHA improved chlorophyll-related traits, leaf Fe recovery, seed Fe, protein content, and yield components more efficiently in tolerant cultivars, whereas sensitive cultivars required higher Fe doses for partial recovery. Fe deficiency increased seed phytate and phosphorus, while Fe resupply reduced phytate in most cultivars. Expression patterns of <i>FRO/IRT1-like</i>, <i>OPT3</i>, and <i>FER</i> supported genotype-dependent differences in Fe acquisition, long-distance signaling, and storage.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Combining genotype selection with targeted Fe fertilization improves Fe nutrition, yield-related traits, and seed nutritional quality under alkaline conditions, supporting integrated strategies for soybean Fe biofortification.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"544-557"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selecting Promising Soil Quality Indicators for Monitoring Soil Management Effects Based on 10 European Long-Term Field Experiments","authors":"Giulia Bongiorno,&nbsp;Marie Wesselink,&nbsp;Wim van den Berg,&nbsp;Zhanguo Bai,&nbsp;Ron de Goede,&nbsp;Carla Sofia Santos Ferreira,&nbsp;Luuk Fleskens,&nbsp;Matjaz Glavan,&nbsp;Wiepie Haagsma,&nbsp;Paul Mäder,&nbsp;Alicia Morugan-Coronado,&nbsp;Harry Verstegen,&nbsp;Zoltan Toth,&nbsp;Wijnand Sukkel,&nbsp;Else K. Bünemann","doi":"10.1002/jpln.70068","DOIUrl":"https://doi.org/10.1002/jpln.70068","url":null,"abstract":"<p><b>Background</b>: Soil quality can be measured through <i>soil quality indicators</i> that reflect soil processes.</p><p><b>Aim</b>: The aim of this study was to (1) identify a limited set of soil quality indicators that are most sensitive to agricultural soil management and that are widely applicable regardless of pedo-climatic conditions, and (2) link common analytical soil quality indicators to near-infrared spectroscopy (NIRS) measurements as a potential high-throughput approach to assess soil quality.</p><p><b>Methods</b>: We assessed the sensitivity of analytical, field, and visual soil quality indicators to tillage (conventional inversion vs. reduced) and organic matter addition (high vs. low) and their interaction with soil texture in 10 long term field experiment across pedo-climatic zones in Europe.</p><p><b>Results</b>: Reduced tillage and high organic matter addition had a positive effect on soil quality parameters, consistent across different European pedo-climatic zones. Total organic carbon, particulate organic carbon, plant available phosphorus and potassium, total nitrogen, microbial carbon and nitrogen, and penetration resistance were the most sensitive indicators and represent four soil functions: Organic matter cycling, nutrient cycling, habitat provisioning, soil structure maintenance. Total organic carbon and total nitrogen measured with NIRS were well correlated with their corresponding analytical methods, highlighting the promising nature of this methodology.</p><p><b>Conclusion</b>: The current study presents a limited set of promising soil quality indicators for monitoring the effect of tillage and organic matter addition. This selection should not be interpreted as a fixed minimum data set and future studies should strengthen the use of these indicators by developing interpretation schemes that take into account data from specific pedo-climatic zone and land use characteristics.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"499-517"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strontium Concentrations in Vineyard Soils Developed on Volcano-Carbonate Materials Under Semiarid Climate","authors":"Raimundo Jiménez-Ballesta,&nbsp;Caridad Pérez-de-los-Reyes,&nbsp;Sandra Bravo,&nbsp;Andrés Gómez-Magan,&nbsp;Jose A. Amorós,&nbsp;Francisco J. García-Navarro","doi":"10.1002/jpln.70074","DOIUrl":"https://doi.org/10.1002/jpln.70074","url":null,"abstract":"<div>\u0000 \u0000 <p><b>Background</b>: The variability of total strontium (Sr) concentration was studied in 75 vineyard soil profiles developed on volcano-carbonate materials (with different concentrations of carbonates) in the region of Campo de Calatrava (Central Spain), one of the main Cenozoic magmatic provinces belonging to the circum-Mediterranean region.</p>\u0000 <p><b>Aim</b>: The aim of this survey was to build up a database on total Sr concentrations in vineyard soils of the Castilla-La Mancha region (Spain).</p>\u0000 <p><b>Methods</b>: Most soils in this region are classified into six main Reference Soil Groups (WRB FAO) —luvisols, calcisols, cambisols, leptosols and regosols—along with lower amounts of gleysols, acrisols, and kastanozems; therefore, the studied region exhibited a remarkable level of pedodiversity.</p>\u0000 <p><b>Results</b>: Strontium, a plentiful element, is widely spread and distributed in the soils of Campo de Calatrava, with an average total concentration of 206 mg kg⁻¹ (ranging from 59 to 2182 mg kg⁻¹). This variability in Sr concentration is attributed to lithologic heterogeneity (a common characteristic in the studied region), pedogenesis, and soil management. A tendency for Sr concentration to increase toward subsurface horizons was observed, although, in some cases, the opposite trend was detected. Soils developed on materials of volcanic origin, along with those of quartzite materials, showed the lowest Sr concentration.</p>\u0000 <p><b>Conclusion</b>: However, Sr concentrations in the studied soils, except for a few isolated samples, were below the background (380 mg kg⁻¹) and threshold (1868 mg kg⁻¹) values ​​established for this region, indicating that there is no Sr contamination in the study area.</p>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"571-580"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yield-Dependent Allocation Functions Overestimate Root-Derived Carbon Inputs in Wheat and Maize","authors":"Henrike Heinemann","doi":"10.1002/jpln.70069","DOIUrl":"https://doi.org/10.1002/jpln.70069","url":null,"abstract":"<p>Root-derived carbon (C) inputs for wheat and maize were estimated using the yield-based allocation functions of Bolinder et al. and Jacobs et al. Comparison with measured root C showed systematic overestimation that becomes larger as predicted C increases. Bolinder gave mean absolute errors (MAE)  of 0.4 Mg C ha⁻¹ (wheat) and 1.0 Mg C ha⁻¹ (maize), Jacobs produced larger errors. These results indicate that static, yield-dependent functions inadequately capture root-derived C inputs, highlighting the need for dynamic, environment-specific approaches.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 4","pages":"445-449"},"PeriodicalIF":3.3,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}