Journal of Plant Nutrition and Soil Science最新文献

{"title":"Enhancement of developmental defects in the boron-deficient maize mutant tassel-less1 by reduced auxin levels","authors":"Michaela S. Matthes,&nbsp;Norman B. Best,&nbsp;Janlo M. Robil,&nbsp;Paula McSteen","doi":"10.1002/jpln.202300155","DOIUrl":"10.1002/jpln.202300155","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Plant responses to deficiencies of the micronutrient boron are diverse and go beyond the well-characterized function of boron in cell wall crosslinking. To explain these phenotypic discrepancies, hypotheses about interactions of boron with various phytohormones have been proposed, particularly auxin. While these hypotheses are intensely tested in the root meristem of the model species, <i>Arabidopsis thaliana</i>, studies in crop species and the shoot are limited.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>To address potential boron–auxin interactions during the vegetative and reproductive development of the crop maize (<i>Zea mays</i>), we utilized the boron-deficient <i>tassel-less1</i> (<i>tls1</i>) mutant and the auxin-deficient <i>vanishing tassel2</i> (<i>vt2</i>) mutant. We investigated interactions of boron and auxin on the levels of auxin biosynthesis and auxin transport in leaves and shoot meristems.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods and Results</h3>\u0000 \u0000 <p>By using genetic interaction analysis, hormone quantification, and confocal microscopy, we show that boron-deficient leaf phenotypes in <i>tls1</i> are enhanced in double mutants with <i>vt2</i> in both greenhouse and field conditions. However, auxin levels are not altered in developing leaves in <i>tls1</i>. Rather, the localization of <i>Zm</i>PIN1a:YFP, a marker for auxin transport, is altered in young tassel meristems and is absent from organ initiation sites during vegetative development.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our data suggest a link between polar auxin transport and phenotypic consequences in boron-deficient conditions and further show that boron deficiency-induced developmental defects are sensitive to low auxin levels. Our study, therefore, offers new insight into nutrient–hormone interactions to regulate crop development.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"305-314"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202300155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060721","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":"Borax Promotes Fertility of Brassica napus Better Than Other Boron Species at Suboptimal Supply","authors":"Jiline B. Tölle,&nbsp;Thomas D. Alcock,&nbsp;Gerd Patrick Bienert","doi":"10.1002/jpln.70000","DOIUrl":"https://doi.org/10.1002/jpln.70000","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Continuous and sufficient boron (B) supply is essential for achieving maximum yield in <i>Brassica napus</i>. Increasing incidences of environmental water limitation are linked to reduced plant B availability and increased B deficiencies. Developing an optimized fertilization strategy that considers the release speed of different B fertilizers is crucial to prevent B-deficiency during flowering.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>Evaluation of different B species’ ability to sustain growth and fertility of <i>B. napus</i> during flowering under single and combined B-deficiency and water-limitation stresses.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The effects of highly soluble/fast-release (boric acid, borax) and slow-release (colemanite, ulexite, zinc borate) B species on plant phenotype and B status was investigated before and during flowering on B-sufficient and severe and moderate B-deficient conditions with varying water availabilities.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Under B-deficiency, plant performance when supplied with the different B species decreased in the following order: borax &gt; boric acid &gt; ulexite &gt; colemanite or zinc borate. Under well-watered and severe and moderate B-deficient conditions, borax application led to higher shoot dry weight, shoot B content, and more asymptomatic flowers than the other B species, on water-limited conditions only under moderate B-deficiency. Independent of B species, root length correlated positively with shoot B content, and shoot head B concentration before flowering correlated positively with the number of asymptomatic flowers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>In B-deficient conditions, floral performance of <i>B. napus</i> is driven by the B species supplied and the soil water status. Fast-release fertilizers, and particularly borax performed best in both well-watered and water-limited treatments, likely due to more continuous availability.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"362-375"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148153579","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":"Boron availability and fertilizer response of maize in soils from sub-Saharan Africa","authors":"Mirjam S. Breure,&nbsp;Elise Van Eynde,&nbsp;Samuel Njoroge,&nbsp;Regis Chikowo,&nbsp;Rob N. J. Comans,&nbsp;Ellis Hoffland","doi":"10.1002/jpln.202400148","DOIUrl":"https://doi.org/10.1002/jpln.202400148","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background and aims</h3>\u0000 \u0000 <p>Low boron (B) availability is associated with strongly weathered, coarse-textured, and low organic matter soils, widespread in sub-Saharan Africa (SSA). It is unknown to what extent B fertilization can increase maize yields in SSA. This study aims to understand the soil properties controlling B availability to field-grown maize.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Boron fertilizer omission trials with maize were executed at 15 sites in Kenya, Zambia, and Zimbabwe. Yield, B uptake, and soil parameters potentially relevant for B availability, including extractable soil B (hot water, 0.01 M CaCl₂, and 0.43 M HNO₃), were determined.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Soil B pools were strongly intercorrelated and were positively correlated with organic carbon, suggesting the relevance of organic matter for soil B availability. Soil parameters described limited variation in B uptake and the yield response to B fertilization. Boron fertilization did not increase yields in any of the 15 sites but increased uptake in 11 sites. Yields were reduced through B fertilization in five sites, likely because B application induced toxicity. No clear critical soil or plant B concentrations indicating deficiency could be derived, but positive yield responses to B fertilization were absent with hot water B levels above 0.69 mg kg⁻¹.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Assessing B fertilizer needs in maize grown in tropical soils based on soil or plant tissue concentrations remains challenging. Improving soil organic matter status could potentially alleviate B deficiency in crops when present. Recommendations are given to overcome the identified challenges associated with studying B availability in tropical soils.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"349-361"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148153529","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":"Exploring maize grain yield response to boron fertilization in Mollisols: Critical thresholds and predictive models","authors":"Pablo Andrés Barbieri,&nbsp;Cecilia Crespo,&nbsp;Nicolás Wyngaard,&nbsp;Mercedes Eyherabide,&nbsp;Nicolás Martínez Cuesta,&nbsp;Nahuel Ignacio Reussi Calvo,&nbsp;Hernán René Sainz Rozas,&nbsp;Hernán Pablo Angelini,&nbsp;Walter Carciochi,&nbsp;Vicente Gudelj,&nbsp;Gabriel Pablo Espósito Goya,&nbsp;Fernando Salvagiotti,&nbsp;Nestor Gustavo Ferraris,&nbsp;Héctor Sánchez,&nbsp;Luis Ventimiglia,&nbsp;Lisandro Torrens Baudrix","doi":"10.1002/jpln.202400011","DOIUrl":"https://doi.org/10.1002/jpln.202400011","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>There are no extractable boron (B) thresholds for maize (<i>Zea mays</i> L.) in Mollisols determined by field calibrations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>Our objectives were to: (1) explore maize grain yield response to B fertilization, (2) calibrate the soil hot water extractable B (HW-B) as a predictor of maize response to B fertilization under field conditions, and (3) assess the contribution of clay, pH, and soil organic matter (SOM) as predictive variables of maize response to B fertilization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We conducted 53 field trials with 2 treatments: with and without B fertilization. At all sites, we measured clay, SOM, pH, and HW-B at a 0–20 cm depth.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Maize grain yield ranged from 5.34 to 17.35 Mg ha⁻¹. Grain yield response to fertilization was observed in 6 out of 53 sites (11.3%). In responsive sites, average grain yield response was 1.0 Mg ha⁻¹. Multiple regression models to predict yield response to B addition that included soil, pH, and SOM only explained 19% of the variability. The critical soil HW-B concentration threshold was 0.78 mg kg⁻¹, correctly diagnosing 79% of the site-years.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The critical threshold for maize B levels resulting from our field study is the first of its kind in Mollisols. This threshold will improve the identification of soils deficient in B.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"330-340"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154140","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":"Boron deficiency responses in maize (Zea mays L.) roots","authors":"Manuela Désirée Bienert,&nbsp;Astrid Junker,&nbsp;Michael Melzer,&nbsp;Thomas Altmann,&nbsp;Nicolaus von Wirén,&nbsp;Gerd Patrick Bienert","doi":"10.1002/jpln.202300173","DOIUrl":"10.1002/jpln.202300173","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Boron (B) is an essential micronutrient for plants. Dicot plants respond to insufficient B supply by altering root architecture and root hair growth. How root systems of rather low-B demanding monocot species such as maize (<i>Zea mays</i> L.) respond to B deficiency in terra has not been experimentally resolved, yet.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>The study aims to investigate root responses and their physiological consequences under B deficiency during the vegetative growth of maize.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>B73 wild-type (WT) maize and its root hairless <i>rth3</i> mutant were grown under varying B supply conditions in soil columns and in an automated root phenotyping facility. Biomass data, root system architecture traits, the mineral elemental composition and molecular B-deficiency responses were quantified.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Though having very low leaf B concentrations, no major growth deficit, apart from chlorotic stripes on leaves, was recorded on maize root and shoot development, with or without root hairs, on B-deficient conditions. Although leaf B concentration of the <i>rth3</i> mutant is significantly lower under B-deficient and under B-surplus conditions compared to the WT, the <i>rth3</i> mutant neither developed a larger total root length, more fine roots nor displayed a higher expression of B uptake transporters as compensatory adaptations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Strikingly, maize plants did neither react with an inhibited root growth nor by a compensatory root foraging behaviour to severe B-deficient in terra growth conditions. This is rather atypical for plants. The performance and altered leaf B concentrations of <i>rth3</i> mutants may be biased by secondary effects, such as an overall reduced root growth.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"315-329"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202300173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135285712","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":"Sweet cherry response in absorption and mobility of 10B applied to soil and flowers under two soil boron conditions","authors":"Gerardo Arredondo,&nbsp;Claudia Bonomelli,&nbsp;Adriana Nario,&nbsp;Ximena Rojas-Silva,&nbsp;Patricia Gaete","doi":"10.1002/jpln.202400098","DOIUrl":"https://doi.org/10.1002/jpln.202400098","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Background&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Boron (B) is an essential micronutrient for plants, and B deficiency reduces fruit set in sweet cherry trees. Several studies showed the advantages of foliar and soil B applications in fruit trees, but there is little information on the distribution of B in the plant, becoming an important issue when nutritional corrections are needed.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aims&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The study aims to determine B mobility and distribution in sweet cherry trees, applying &lt;sup&gt;10&lt;/sup&gt;B to the flowers and soil, at different timings and under two levels of soil B availability.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Two experiments were conducted with sweet cherry trees. In the two previous seasons, the plants were managed in two soil B availability conditions (deficient and adequate). The experiments consisted of the applications of &lt;sup&gt;10&lt;/sup&gt;B solution to the flowers and the soil at different timings and under both soil B conditions.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Higher &lt;sup&gt;10&lt;/sup&gt;B absorption occurred when the &lt;sup&gt;10&lt;/sup&gt;B was applied to the soil at full bloom than when it was applied before leaf senescence. Boron was mobilized to all the tissues, but mainly to the leaves. Nevertheless, the fruit presented no differences in &lt;sup&gt;10&lt;/sup&gt;B excess for both application timings. Irrespective of soil B conditions, the &lt;sup&gt;10&lt;/sup&gt;B applied to the soil at full bloom was absorbed and mobilized to different tissues, that is, roots + rootstock + trunk (39%–44%) and stems + leaves (53%–55%), showing no differences between them. A lower percentage of B was located in the fruit, with 1% and 8% at soil B-deficient and B-adequate conditions, respectively. The highest percentage of the &lt;sup&gt;10&lt;/sup&gt;B applied to the flowers remained in the fruit (≈70%), and nearly 20% and 10% were mobilized to stems + leaves and roots + rootstock + trunk, respectively, independent of the soil B condition.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Boron applied to soil at full bloom or before leaf senescence, under B-deficient soil condition, is absorbed and mobilized to all the plant tissues, enhancing the B status in sweet cherry trees particularly when it is applied at full bloom. However, B soil application before leaf senescence would improve the availability of B (reserves) to the flowers in the following season. Boron applied to the flowers, at full bloom, remains in a high proportion in the fruit, becoming an effective complementary method to meet the fruit demands of the growing season, independent of the","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"300-304"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148153528","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. 3/2026","authors":"","doi":"10.1002/jpln.70078","DOIUrl":"https://doi.org/10.1002/jpln.70078","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"287-288"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154267","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":"Predicting Boron Availability for Soybean: Field Calibration of Soil and Plant Analyses","authors":"Ana Natalia Bustos,&nbsp;Carolina Alvarez,&nbsp;Nicolás Wyngaard,&nbsp;Pablo Andrés Barbieri,&nbsp;Mercedes Eyherabide,&nbsp;Silvina Bacigaluppo,&nbsp;Leandro Ruben Boero,&nbsp;Raul Omar Cáceres Diaz,&nbsp;Walter Daniel Carciochi,&nbsp;Juan Martín Enrico,&nbsp;Gustavo Nestor Ferraris,&nbsp;Jorge Vicente Gudelj,&nbsp;Gabriel Maria Prieto,&nbsp;Fernando Salvagiotti,&nbsp;Hector Alfredo Sanchez,&nbsp;Mariana Verónica Sauer,&nbsp;Eduardo Alberto Vitta Larrieu,&nbsp;Hernán Saínz Rozas","doi":"10.1002/jpln.70019","DOIUrl":"https://doi.org/10.1002/jpln.70019","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Boron (B) deficiency can negatively affect the physiological processes of soybean (<i>Glycine max</i> (L.) Merr.). However, little is known about using soil or plant tissue tests as predictors of soybean seed yield response to B fertilization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>To evaluate the ability of soil and plant analyses to predict soybean seed yield response to B fertilization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Field studies were conducted between 2004 and 2022 across 30 site-years. Two treatments were evaluated: with or without foliar B fertilization. Soil samples (0–20 cm) were collected at sowing, and B was extracted with CaCl₂ (CaCl₂-B) or ammonium acetate (NH₄Ac-B) and quantified by the azometine-H method. Total B concentration was also determined in seed samples and trifoliate leaves collected at the vegetative (V₇–V₈) and reproductive (R₂) growth stages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Boron fertilization increased seed yield by 5%–6% and generally did not increase leaf or seed B concentrations. Soil testing for B availability predicted soybean seed yield response to fertilization. The critical B thresholds for CaCl₂-B and NH₄Ac-B were 0.72 and 0.66 mg kg⁻¹, respectively. However, NH₄Ac-B showed a greater proportion of correctly diagnosed cases than CaCl₂-B. Neither the early nor the late-stage leaf or seed-tissue analysis of B total concentration provided an accurate diagnosis of B response to B fertilization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Under field conditions, NH₄Ac-B proved more accurate than CaCl₂-B for identifying B deficiency. Plant tissue B analyses did not demonstrate significant predictive value. We recommend soil testing with NH₄Ac for predicting seed yield response to B fertilization in soybean.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":"387-398"},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148153228","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":"Contents: J. Plant Nutr. Soil Sci. 3/2026","authors":"","doi":"10.1002/jpln.70077","DOIUrl":"https://doi.org/10.1002/jpln.70077","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148153495","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":"Contents: J. Plant Nutr. Soil Sci. 2/2026","authors":"","doi":"10.1002/jpln.70061","DOIUrl":"10.1002/jpln.70061","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"189 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.70061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683091","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}