Journal of Plant Nutrition and Soil Science最新文献

{"title":"Wheat Wild Relatives and Modern Cultivars Differ for Salt Resistance in Terms of Morpho-Physiological Traits","authors":"Muhammad Saqib,&nbsp;Riya Raj,&nbsp;Michael Frei","doi":"10.1002/jpln.70092","DOIUrl":"https://doi.org/10.1002/jpln.70092","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Wheat wild relatives are untapped genetic resources from salinity and drought hit areas. Salinity disrupts physiological processes of wheat leading to impaired growth and development. A comparative study on salt resistance of wheat wild relatives (landraces and wild types) and modern wheat cultivars is lacking.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study compares the impact of salinity on wild wheat species, landraces, and modern wheat cultivars to identify salt-resistant traits and genotypes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A hydroponics experiment was carried out on wheat in controlled environment with two treatments (nonsaline and saline [125 mM NaCl]) and three replications over a period of 4 weeks. Morph-physiological traits were studied.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Salinity significantly reduced growth and physiological performance of wheat with significant differences among the wheat genotypes and a significant genotype × salinity interaction. Salinity increased shoot Na⁺ concentration and decreased shoot K⁺ concentration and shoot K⁺:Na⁺ ratio. Wheat species and genotypes differed for their response to salinity for Photosystem II efficiency, chlorophyll contents, stomatal conductance, and malondialdehyde. <i>Triticum dicoccoides</i> (G242) is the most salt-resistant genotype based on relative shoot fresh and dry weights under saline conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>This is the first study presenting differential comparative morph-physiological responses of wheat wild species, landraces, and modern cultivars under saline conditions. Salt-resistant species produced more shoot and root biomass under saline conditions through salt exclusion or tissue tolerance. Salt-resistant genotypes like <i>T. dicoccoides</i> may be used for de novo domestication and to introduce salinity resistance traits in wheat improvement programs.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"721-734"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149083992","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":"Chemical Structure of Organic Matter of Water-Stable Macro- and Microaggregates of Haplic Chernozem in Different Land-Use Variants","authors":"Zinaida Artemyeva,&nbsp;Yury Kolyagin,&nbsp;Elena Zasukhina,&nbsp;Nadezhda Yaroslavtseva,&nbsp;Boris Kogut","doi":"10.1002/jpln.70094","DOIUrl":"https://doi.org/10.1002/jpln.70094","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Soil organic matter (SOM) plays a significant role in the soil aggregation process, and aggregate stability, largely determined by OM quality, is the cornerstone of sustainable agroecosystem management.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study investigates the effect of different land uses (steppe—NS, conventional tillage—CT, and long-term bare fallow—LTBF) on the chemistry of OM pools within water-stable structural units of Haplic Chernozem.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The quality of OM pools within water-stable macro- (2–1 mm) and free microaggregates (&lt;0.25 mm) isolated from the 1–2 mm air-dry aggregates was investigated using ¹³C cross-polarization (CP)-MAS NMR spectroscopy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Integral indices of the chemical structure of OM pools indicate negative changes in their qualitative composition when converting native soil to agricultural practice: an increase in their decomposition (DI), aromaticity (ARI), and hydrophobicity (HI) indexes compared to those in undisturbed native soil (NS), reaching the maximum observed values under extreme environmental conditions (LTBF). This is accompanied by a disruption of the natural differentiation of OM quality at different levels of structural organization. In arable soils (CT and LTBF), due to physical destruction caused by soil cultivation and the passage of heavy agricultural machinery, accompanied by the release of formerly physically protected OM, more degraded OM is localized not within macroaggregates (as under native conditions [NS]), but within free microaggregates.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>A sharp deterioration in the OM quality in arable soils, in particular, an increase in its hydrophobicity and aromaticity, largely contributes to a decrease in the proportion of the 2–1 mm water-stable macroaggregates within air-dry aggregates of the same size in arable soils compared to that in native soil: by 35-fold (CT) and by almost 300-fold (LTBF).</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"735-745"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084083","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":"Root Exudates and Plant Abiotic Stress Tolerance","authors":"Nimra Khalid,&nbsp;Saddam Hussain,&nbsp;Ilkay Yavas,&nbsp;Kaleem ul din,&nbsp;Ejaz Ahmad Waraich,&nbsp;Tahir Hussain Awan,&nbsp;Muhammad Irfan,&nbsp;Qaiser Mahmud","doi":"10.1002/jpln.70084","DOIUrl":"https://doi.org/10.1002/jpln.70084","url":null,"abstract":"<div>\u0000 \u0000 <p>Plant development and production are severely hampered by abiotic stresses such as salinity, temperature changes, heavy metals, nutrient inadequacies, and drought. Root exudates are a complex mixture of organic substances that are exuded by plants and are essential for regulating rhizosphere interactions and improving plant resilience to these stresses. This review summarizes current studies on how root exudates contribute to abiotic stress tolerance, with a particular emphasis on their interaction with the rhizospheric microbiome. The mechanisms by which root exudates enhance plant tolerance to diverse abiotic stresses are also explored. Under stressful conditions, root exudates modify microbial communities, foster favorable symbiotic relationships, and facilitate nutrient acquisition by plants. Despite the progress in comprehending these mechanisms, the specific chemical cues that stimulate these mutualistic relationships remain to be elucidated. Addressing these knowledge gaps is crucial to enhancing plant resilience in the face of escalating environmental challenges, and the development of sustainable solutions is imperative.</p>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"625-645"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084128","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":"Nitrogen Fertilization Temporarily Enhances Phosphatase Activity in a High-P Loamy Sand","authors":"Ingeborg F. Pedersen,&nbsp;Martin S. A. Blackwell,&nbsp;Nelly Sophie Raymond,&nbsp;Jørgen Eriksen","doi":"10.1002/jpln.70104","DOIUrl":"https://doi.org/10.1002/jpln.70104","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Efficient plant utilization of soil phosphorus (P) is essential to reduce dependence on mineral P fertilizers in intensive agriculture. Input of mineral nitrogen (N) fertilizers and its chemical form may influence the activity of P mineralizing enzymes, but how this interaction operates under field conditions in a soil with high P status remains poorly understood.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study investigated how different mineral N fertilizer forms influence soil pH and phosphomonoesterase activity during early maize growth, using these parameters as proxies for potential mineralization of organic soil P.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A one-season lysimeter study was conducted with maize (<i>Zea mays</i> L.) grown on a loamy sand soil with high Olsen-P content. Nitrogen was applied at a rate of 180 kg N ha⁻¹ as either nitrate-N or ammonium-N. A treatment without N was included as a reference. Soil pH and phosphomonoesterase activity were measured in bulk and rhizosphere soil at leaf stages V4, V5 and V6. At silage maturity, dry matter yield and P uptake were determined.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Nitrogen fertilization increased maize yield by 68%, with similar yields observed for both N forms (25.5–26.0 Mg DM ha⁻¹). Rhizosphere pH was consistently higher than bulk soil pH across treatments. At V4, phosphomonoesterase activity was higher in the rhizosphere than in bulk soil in N-fertilized treatments.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Nitrogen fertilization momentarily stimulated rhizosphere phosphomonoesterase activity at an early growth stage, indicating altered conditions associated with organic P mineralization. Direct measurements of soil P pools are required to determine whether these changes translate into increased P availability under field conditions.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"794-802"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084186","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":"Quantifying Effects of OM–Cation Interactions on Mid-Infrared FTIR Absorption Spectra of Polygalacturonic Acid","authors":"Ruth H. Ellerbrock,&nbsp;Nisha Bhattarai,&nbsp;Horst H. Gerke","doi":"10.1002/jpln.70093","DOIUrl":"https://doi.org/10.1002/jpln.70093","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The composition of organic matter (OM) was characterized by Fourier transform infrared spectroscopy (FTIR) in terms of the relative number of functional groups. The presence of polyvalent cations in soil and effects of OM–cation interactions on FTIR absorption bands limit the interpretation of FTIR spectra of soil OM.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Quantify changes in intensity and wave number (WN) ranges for carboxyl groups in FTIR of OM–cation mixtures and identify their relations with cation concentration based on Lambert–Beer's law.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Freeze-dried mixtures of polygalacturonic acid (PGA) as model substance and CaCl₂ (Ca–PGA) were analyzed with FTIR spectroscopy in mid-infrared WN range using KBr technique. Lambert–Beer's extinction coefficient was determined for WNs in the range of the asymmetric COO⁻ band (ν_aCOO⁻).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The intensity of the ν_aCOO⁻ band maximum in FTIR spectra of Ca–PGA mixtures increased linearly with Ca content, and the band maximum shifted towards smaller WN. Regressions as well as relations of Lambert–Beer's extinction coefficient ratios could be useful to estimate the ν_aCOO⁻ band intensity in FTIR of pure PGA from that of Ca–PGA mixtures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Discussion</h3>\u0000 \u0000 <p>The regression-based approach required a calibration with spectra of “pure” OM. The Lambert–Beer extinction coefficient ratios could be applied without prior calibration if spectra of the same OM–cation mixtures with different cation concentrations were available.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The empirical and extinction coefficient ratio-based methods were both found useful for studying effects of OM–cation interactions on mid-infrared FTIR absorption spectra to characterize OM composition.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"702-711"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084187","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":"Issue Information: J. Plant Nutr. Soil Sci. 5/2026","authors":"","doi":"10.1002/jpln.70122","DOIUrl":"https://doi.org/10.1002/jpln.70122","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"623-624"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149083906","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":"Refining the Walkley–Black Correction Factor for Soil Organic Carbon Estimation in Highly Weathered Tropical Soils of Western Ghats","authors":"M. Lalitha,&nbsp;K. M. Nair,&nbsp;Rajeev Srivastava,&nbsp;K. S. Anil Kumar,&nbsp;Jagdish Prasad,&nbsp;S. Parvathy,&nbsp;V. Ramamurthy","doi":"10.1002/jpln.70090","DOIUrl":"https://doi.org/10.1002/jpln.70090","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background and aim</h3>\u0000 \u0000 <p>Accurate estimation of soil organic carbon (SOC) is essential for assessing soil health, guiding land management, and making informed decisions on climate change mitigation strategies. Most studies on soil carbon rely on the Walkley–Black (WB) method due to its simplicity, but it underestimates SOC, especially in highly weathered tropical soils.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This study evaluated the WB correction factor (WBCF) by comparing SOC estimated from WB and the carbon-nitrogen (CN) analyzer method for 563 samples collected across the Western Ghats region of India.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The results showed that WBCF increased with depth from 1.27 at 0–15 cm to 2.84 at 100–150 cm, indicating that the oxidation efficiency of WB method decreased with depth due to the accumulation of recalcitrant and mineral-bound organic matter in sub-soils. Correlation and segmented regression analysis identified a critical breakpoint at CEC/clay ratio of 0.21, below which soils exhibited high correction factors (WBCF) and low SOC recovery. Similarly, a threshold at 50% clay content marked a shift in recovery behavior. The correction factor calculated as the inverse of the regression slope was 1.62 for soils with low CEC/clay ratio (&lt;0.21) and 1.29 for those with ≥0.21, indicating a strong influence of clay reactivity on SOC recovery. Similarly, soils with high clay content (≥50%) had a higher correction factor (1.54) compared to soils with &lt;50% clay (1.34), indicating the underestimation of SOC by the WB method in clay-rich soils due to greater organic matter stabilization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>These findings underscore the need for depth and mineralogy-specific correction factors, as the conventional WB factor substantially underestimates SOC in highly weathered, oxide-rich, low-active tropical soils.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"712-720"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149083986","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":"Biochar-Mediated Controlled Release of Mineral Nitrogen From Urea Enhances Wheat Yield in Low Fertility Alkaline Soil","authors":"Maryam Mumtaz,&nbsp;Sajid Mahmood,&nbsp;Sahar Naveed,&nbsp;Muhammad Akhtar,&nbsp;Samrah Shams,&nbsp;Hafiza Hafsa Iqbal,&nbsp;Maryam Naveed,&nbsp;Qudsia Nazir","doi":"10.1002/jpln.70088","DOIUrl":"https://doi.org/10.1002/jpln.70088","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Nitrogen (N) losses in low-fertility alkaline soils substantially reduce nitrogen use efficiency and limit wheat productivity. Although biochar has been widely studied as a nutrient-retentive soil amendment; however, its potential to assist fertilizer reduction under alkaline soil conditions remains insufficiently understood.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study evaluated the effectiveness of integrating biochar with urea to regulate soil N transformations and enhance wheat productivity in alkaline soil.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>A 1-month laboratory incubation study was conducted in soil amended with biochar at 1%, 2%, and 3% (w/w) and urea at the recommended rate of 150 kg N ha⁻¹ (0.0144 g urea jar⁻¹). In a complementary pot experiment, wheat was grown in alkaline soil amended with 1% biochar combined with urea applied at 100%, 85%, and 70% of the recommended rate (0.87, 0.74, and 0.60 g urea pot⁻¹), respectively.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Results showed that 3% biochar was the most effective rate in the laboratory incubation, significantly lowering NH₄⁺-N concentration and delaying its nitrification to NO₃^–-N; however, on the basis of the practical applicability, 1% biochar was selected for the pot experiment. Results for pot experiment revealed that wheat plants receiving 85% of the recommended urea with 1% biochar displayed improved agronomic attributes and produced higher grain yield (15.5 g pot⁻¹) and total N in roots, shoots, and grain than plants supplied with 100% urea alone.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Overall, the results demonstrate that low biochar application rate (1%) can partially substitute for mineral N fertilizer by regulating urea-derived N dynamics and improving wheat performance in alkaline soil.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"681-691"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084176","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":"Soil Silicon Application Alleviates Drought Stress in Sugar Beet (Beta vulgaris L.)","authors":"Tabea Selzer,&nbsp;Gereon Heller,&nbsp;Dietmar Horn,&nbsp;Thomas Hetterich,&nbsp;Jan Kessler,&nbsp;Jakob Santner","doi":"10.1002/jpln.70098","DOIUrl":"https://doi.org/10.1002/jpln.70098","url":null,"abstract":"<p><b>Background</b>: The increasing frequency and intensity of drought events have led to yield and quality losses in sugar beet production in temperate regions in Central Europe. Under arid conditions, silicon (Si) application reduced beet yield losses under drought. Similar data for temperate climates are missing. Moreover, most studies have focused either on foliar application or drip irrigation with Si.</p><p><b>Aims</b>: The aim of this study was to determine the effect of soil Si application on the yield and quality parameters of <i>Beta vulgaris</i> in a temperate environment.</p><p><b>Methods</b>: Field trials were conducted at three different sites in Germany and Austria. Different Si fertilisation rates were tested (Site 1: 0, 37, 78 kg ha⁻¹; Sites 2 and 3: 0, 50 kg ha⁻¹). At Site 1, an irrigated control and a non-irrigated drought treatment were established. At Sites 2 and 3, irrigation was not possible. Yield and quality parameters were determined after harvest.</p><p><b>Results</b>: At Site 1, drought stress reduced beet yield by 30% without Si application. Under drought conditions, Si led to a significant reduction in beet yield and net sugar yield losses of 17% and 18%, respectively. Quality parameters were only affected by irrigation, not by Si. No natural drought stress occurred at Sites 2 and 3.</p><p><b>Conclusions</b>: The results indicate that Si fertilisation could become a relevant tool for sugar beet cultivation in a changing climate. The mechanisms behind this yield effect are yet to be determined. More data are needed to propose clear Si fertiliser recommendations for sugar beet cultivation.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"746-762"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149083933","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":"Call for Community Contributions to Update Target Ranges for Plant Tissue Analysis","authors":"Maike Erb-Brinkmann,&nbsp;Sören Siegmund,&nbsp;Werner Bannach","doi":"10.1002/jpln.70099","DOIUrl":"https://doi.org/10.1002/jpln.70099","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Plant tissue analysis has been used for the diagnosis of both deficiencies and excess in plant nutrition. The nutrient concentrations in crops are compared with critical values (CVs in the sense of target values or ranges) reported in the literature, which were determined on the basis of extensive nutrient enrichment and survey studies. Due to changing framework conditions—such as climate change, emission reductions, and new crop varieties—regular monitoring of these values appears advisable.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This work aimed to set up an open-source datasheet as well as open-source evaluation tools to facilitate the calculation of target ranges in the future. The datasheet is meant to be expanded and kept up to date regularly by additional data from experts.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A total of 1.212 datasets were compiled on samples from field and trial sites in three growing seasons from eight arable crops. Using the programmed formula, we exemplarily compared target ranges currently used with target ranges calculated from mean nutrient concentrations of high-yielding subsets or derived from a boundary line fitted to scatter plots of nutrient concentration versus yield, using the CV as maximum.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The boundary-line approach proved applicable to deduce target (critical) values from the datasets where sample numbers were sufficient.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>On the basis of the datasets of this work, the majority of values currently used in Central Europe could be confirmed. For sulfur, we suggest lower target ranges, especially in cereals and corn. Further, we recommend reducing the target range width for magnesium, manganese, and zinc in corn and for boron in sugar beets and potatoes. Data and formulas are published open access under https://github.com/ANAPLANT-Project/ANAPLANT. Interested experts in plant tissue analysis are invited to make use of it.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 5","pages":"646-652"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084178","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}