{"title":"Contents: J. Plant Nutr. Soil Sci. 4/2024","authors":"","doi":"10.1002/jpln.202470044","DOIUrl":"10.1002/jpln.202470044","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 4","pages":"560"},"PeriodicalIF":2.6,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202470044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939742","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}
Abbas Shoukat, Britta Pitann, Muhammad Mubashar Zafar, Muhammad Awais Farooq, Muhammad Haroon, Allah Nawaz, Syed Wasiq Wahab, Zulfiqar Ahmad Saqib
{"title":"Nanotechnology for climate change mitigation: Enhancing plant resilience under stress environments","authors":"Abbas Shoukat, Britta Pitann, Muhammad Mubashar Zafar, Muhammad Awais Farooq, Muhammad Haroon, Allah Nawaz, Syed Wasiq Wahab, Zulfiqar Ahmad Saqib","doi":"10.1002/jpln.202300295","DOIUrl":"10.1002/jpln.202300295","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Nanotechnology, utilizing nanoparticles (NPs) with unique physicochemical properties, has significant potential in enhancing sustainable agriculture through innovations in plant nutrition, growth, and protection.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This review aims to assess how nanotechnology, particularly NPs, contributes to sustainable agriculture by improving plant nutrition and growth, enhancing stress resistance, and offering solutions for phytoremediation and agricultural efficiency.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We examine studies showcasing the application of NPs in agriculture, focusing on their effects on plant growth, nutrient delivery, stress mitigation, pollutant removal, and the enhancement of food shelf life through nano-encapsulated fertilizers and nano-sensors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>NPs have demonstrated promising results in slow-release fertilizers for targeted nutrient delivery, improved germination and physiological activity under stress, and enhanced efficiency in phytoremediation by aiding the removal of pollutants. Nano-sensors in food packaging detect deterioration and extend food shelf life, whereas nano-encapsulation of agrochemicals offers environment-friendly pest and nutrient management solutions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Nanotechnology presents a forward-looking approach to sustainable agriculture by enhancing crop productivity, resource use efficiency, and environmental protection. Continued research is essential to unlock the full potential of NPs in agriculture, emphasizing safe and efficient application methods to mitigate abiotic and biotic stresses and promote sustainability.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 5","pages":"604-620"},"PeriodicalIF":2.6,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202300295","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141798283","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}
Christoph Emmerling, Celine Hoffmann, Maren Herzog, Benjamin Schieber, Ferdinand Stöckhert, Sebastian Koschel, Michael Kurtenacker, Peter Trüby
{"title":"Soil warming by electrical underground transmission lines impacts temporal dynamics of soil temperature and moisture","authors":"Christoph Emmerling, Celine Hoffmann, Maren Herzog, Benjamin Schieber, Ferdinand Stöckhert, Sebastian Koschel, Michael Kurtenacker, Peter Trüby","doi":"10.1002/jpln.202400052","DOIUrl":"10.1002/jpln.202400052","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The current transformation of the entire energy system leads to a large-scale expansion of extra-high-voltage underground transmission lines (UTL). Knowledge of the impact on soil temperature and soil moisture dynamics is fundamental for environmental evaluation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We investigated the impact of an existing 320 kV underground cable in continuous operation on soil temperature and moisture dynamics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A soil-monitoring programme was established at four study sites in Western Germany. Data were continuously recorded in soil up to 120 cm depth using soil sensors over a period of 1 year.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Soil warming was in a range of 0.6 K in the topsoil, approx. 1–1.3 K in the rooting zone and 1.7 K in the subsoil at 120 cm depth and was restricted mainly to the immediate vicinity of the cable route. Likewise, the impact on soil moisture dynamics was on average in a range of −1.00 wt.-% in 0–60 cm depth and −2.45 wt. 2-% in the subsoil relative to control. Although at a calculated maximum load capacity of 100% in regular operation, soil warming might remain moderate, with 1.5 K in the topsoil, 2.3–3.1 K in the rooting zone and 4.1 K in the subsoil.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>It is assumed that the reasons for the low-to-moderate influence of the UTL are to be found in the operational cable load (on average 65%), heat loss of cables (approx. 12 W m<sup>−1</sup> per cable) and the quality of the imbedding material for the cables.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 6","pages":"700-710"},"PeriodicalIF":2.6,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770552","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}
Clara Kopp, Iria Regueiro, Lars Stoumann-Jensen, Dorette Müller-Stöver, David Fangueiro
{"title":"Enhancing phosphorus availability in biochar: Comparing sulfuric acid treatment to biological acidification approaches","authors":"Clara Kopp, Iria Regueiro, Lars Stoumann-Jensen, Dorette Müller-Stöver, David Fangueiro","doi":"10.1002/jpln.202300404","DOIUrl":"10.1002/jpln.202300404","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The use of sulfuric acid (SA) to acidify biochars is known to enhance their phosphorus (P) fertilizer value. Potentially, biological approaches such as lowering the pH of biochar by lactic acid co-fermentation or applying biochar with a nitrification inhibitor (NI) to reduce rhizosphere pH are an alternative to SA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study aimed to evaluate the two methods for increasing plant P availability from two biochars and compare them with SA-treated biochars (as a reference) in a pot experiment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Meat and bone meal biochar (MB-C) and digestate solids biochar (DS-C) were bio-acidified (BA) by lactic acid fermentation with organic waste. The untreated, SA-treated, BA biochars, and biochars co-applied with a NI (3,4-dimethylpyrazolephosphate) were tested in a pot experiment with maize.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The fermentation reduced the pH of the organic waste biochar mixtures to <4.3 and increased water-extractable P (WEP) to 30% of total P. The untreated biochars had a mineral fertilizer replacement value of >50% and SA increased replacement values to ≈100%. The application of NI did not affect rhizosphere pH or P uptake. The BA MB-C increased soil solution P concentration, but P uptake did not significantly increase. The application of the BA DS-C raised soil pH and reduced plant P uptake and biomass.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The untreated biochars showed considerable P fertilizer effectiveness, suggesting that acidification may not always be necessary. Rhizosphere acidification and the bio-acidification of biochars were not effective in further increasing P uptake, despite higher levels of WEP.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 6","pages":"737-747"},"PeriodicalIF":2.6,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202300404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770566","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}
Jasper Lauritz Dölger, Britta Pitann, Karl H. Mühling
{"title":"Potassium induced suppression of magnesium uptake and translocation is limited in oat (Avena sativa L.)","authors":"Jasper Lauritz Dölger, Britta Pitann, Karl H. Mühling","doi":"10.1002/jpln.202400151","DOIUrl":"10.1002/jpln.202400151","url":null,"abstract":"<p>The main cause of magnesium (Mg<sup>2+</sup>) deficiency in plants is its competition with potassium (K<sup>+</sup>). Besides uptake antagonism, previous studies also suggested that high [K<sup>+</sup>] inhibits root-shoot translocation of Mg<sup>2+</sup>. In this study on oat, root elemental analysis revealed an evident but, with further increasing K<sup>+</sup>/Mg<sup>2+</sup> ratio, limited suppression of Mg<sup>2+</sup> uptake. In contrast, shoot [Mg<sup>2+</sup>] showed little or no reduction. This indicated a translocation synergism, as the suppression of the root [Mg<sup>2+</sup>] by K<sup>+</sup> was counterbalanced. Oat thus provides new insights and raises new questions about the interactions of K<sup>+</sup>/Mg<sup>2+</sup>, in particular on the role of specific Mg<sup>2+</sup> transporters. A better understanding of this interaction may help to counter the worldwide Mg deficiency more effectively.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 4","pages":"454-458"},"PeriodicalIF":2.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141609534","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}
Victoria Virano-Riquelme, Karl-Heinz Feger, Stefan Julich
{"title":"Insight into the variation of soil hydraulic properties under beech and spruce forest—A case study in the forest of Tharandt, NE Germany","authors":"Victoria Virano-Riquelme, Karl-Heinz Feger, Stefan Julich","doi":"10.1002/jpln.202400073","DOIUrl":"10.1002/jpln.202400073","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The increasing vulnerability of forests in the temperate zone due to climate change has led to modification in the forest structure to secure woody raw materials and ecosystem benefits. Such changes will influence hydrological processes both at the stand and catchment scale. Soil hydraulic properties (SHP) play an important role in assessing the water cycle in these ecosystems. Yet, knowledge regarding the effect of forest- and site-specific conditions on SHP in temperate climates is scarce.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This work addresses this research gap by assessing the variation of SHP under two common European forest stands, <i>Fagus sylvatica</i> and <i>Picea abies</i> (1) with comparable site conditions, and (2) across differing site conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We determined the soil water retention curve (WRC) and the hydraulic conductivity curve (HCC) in several plots with the bimodal Kosugi–Mualem's hydraulic model. These functions were determined using combined field and laboratory measurements, including hydraulic conductivity and water content from soil samples.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>(1) We observed distinct variations in SHP between beech and spruce forest stands with comparable site conditions; however, no clear pattern in the variation was discernible. (2) A noticeable effect of the site-specific characteristics on the SHP was detected. Moreover, SHP in each analysed forest type presented individual variations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>This study demonstrates that SHP present a wide range of variations in terms of both forest- and site-specific conditions. Hence, due to its heterogeneity, we emphasise the need for more research to better characterise SHP in temperate zone forests. Moreover, this study underlines the urgent use of a minimum set of parameters in studies when addressing SHP (e.g., tree age, soil texture).</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 4","pages":"545-558"},"PeriodicalIF":2.6,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569035","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":"Magnitude and driving factors of boron depletion in agricultural soils","authors":"Mercedes Eyherabide, Nicolás Wyngaard, Gastón Larrea, Hernán Angelini, Nicolás Martínez Cuesta, Pablo Barbieri, Nahuel Ignacio Reussi Calvo, Hernán Rene Sainz Rozas","doi":"10.1002/jpln.202400006","DOIUrl":"https://doi.org/10.1002/jpln.202400006","url":null,"abstract":"BackgroundNeither the magnitude of boron (B) depletion in agricultural soils nor the driving factors of this process have been systematically studied before.AimsThe objectives of our study were to survey the extractable B (B<jats:sub>e</jats:sub>) in pristine soils as compared with cultivated soils, to estimate the yearly B depletion rate in agroecosystems, and to identify the edaphic, productive, and/or climatic factors determining that rate.MethodsSurface soil samples (0–20 cm layer) were taken from uncropped (UC) sites and nearby agricultural fields in 2011 and 2018 (AGR<jats:sub>2011</jats:sub> and AGR<jats:sub>2018</jats:sub>, respectively) from the Argentinean Pampas. In these samples, B<jats:sub>e</jats:sub> and other edaphoclimatic and productive variables were determined, such as clay content, precipitation (PP), pH, evapotranspiration (ET), soil organic matter (SOM), and B removal with crop grains (<jats:italic>R</jats:italic><jats:sub>B</jats:sub>).ResultsThe B<jats:sub>e</jats:sub> concentration decreased with agricultural activity, because UC soils had an average B<jats:sub>e</jats:sub> value of 1.9 mg kg<jats:sup>−1</jats:sup>, whereas AGR<jats:sub>2011</jats:sub> and AGR<jats:sub>2018</jats:sub> soils had values of 1.3 and 0.9 mg kg<jats:sup>−1</jats:sup>, respectively. The depletion rate from 2018 to 2011 ranged from 0.01 to 0.06 mg kg<jats:sup>−1</jats:sup> y<jats:sup>−1</jats:sup>, and the main factors associated with this process were <jats:italic>R</jats:italic><jats:sub>B</jats:sub>, PP, soil acidification, and SOM depletion (promoting B depletion) and ET and clay (reducing depletion).ConclusionAt current rates, B depletion from these agricultural soils could compromise B availability for crops in the short‐to‐medium term, depending on regional differences caused by edaphoclimatic and productive differences (<jats:italic>R</jats:italic><jats:sub>B</jats:sub>, PP, pH, SOM, ET, and clay). Urgent actions are required to halt and/or revert this soil degradation process.","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"12 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569036","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":"15N mass balance technique for measuring ammonia losses from soil surface-applied slurries containing various additives","authors":"Urs Schmidhalter","doi":"10.1002/jpln.202400235","DOIUrl":"10.1002/jpln.202400235","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Anthropogenic ammonia emissions, primarily derived from agriculture, lead to air pollution, soil acidification, and surface water eutrophication, all of which adversely affect human health and ecosystems. Slurry treatment technologies in the form of additives represent an underutilized means of reducing gaseous emissions. Information regarding the potential of additives to reduce ammonia in soil surface-applied slurries is scarce.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study aims to develop a <sup>15</sup>N mass balance technique to quantitatively measure ammonia losses from different slurries containing multiple additives that are applied to outdoor soil-filled containers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The experiments were performed under free-air conditions. Isotopically labeled slurries from biogas, cattle, and pigs containing 18 additives were surface-applied to soil-filled containers and exposed for 72 or 48 h. The additives included inorganic and organic adsorbents, five amounts of sulfuric acids, molasses ± effective microorganisms, and water dilution. After termination of the ammonia loss period, a suite of soil preparation steps for the quantitative recovery of the labeled ammonium remaining in the soil was developed, and subsequently the loss of NH<sub>4</sub>-N was determined.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In the control treatments, ammonia losses from biogas, cattle slurries, and pig slurries averaged 54.4%, 33.9%, and 11.0%, respectively. The adsorbents did not decrease or only slightly decreased ammonia emissions. Ammonia abatement by sulfuric acid was nearly complete at pH values of 5.9 and 5.8 for the biogas and pig slurry, respectively, and about 80% at pH 5.2 for the cattle slurry. In comparison, more moderately decreased pH values with sulfuric acid showed a similar reduction as molasses and a 1:1 dilution for the three slurries. Adding microorganisms to the molasses did not further decrease ammonia losses.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The newly developed <sup>15</sup>N mass balance technique, which allows a precise estimate of ammonia losses, can serve as a reference method to assess ammonia losses from field-applied slurries containing various additives and as a standard comparison technique for other ammonia measurement techniques.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 4","pages":"443-453"},"PeriodicalIF":2.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528885","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":"Biochemical properties of phytase immobilized and its effect on growth parameters of tomato","authors":"Neslihan Dikbaş, Şeyma Alım, Sevda Uçar, Merve Şenol Kotan","doi":"10.1002/jpln.202300311","DOIUrl":"https://doi.org/10.1002/jpln.202300311","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Phosphorus (P) is one of the nonrenewable resources of critical importance in agricultural production. P is present in soil in organic and inorganic forms. Phytate constitutes the majority of organic P in soil. Phytate binds strongly to the solid phase of the soil and becomes unavailable for use by plants. Therefore, the soluble phytate-P ratio in soil is mostly at very low levels. Plants and associated microorganisms secrete organic acids and hydrolyzing enzymes such as phytase to dissolve phytate in the soil. Both the solubility of phytate and phytase activity are limiting properties for the uptake of phytate-P by plants.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>Our aim was to evaluate the effects of phytase immobilized on zinc oxide nanoparticles (ZnO Np) on tomato plant (<i>Solanum lycopersicum</i>) growth parameters. In this study, seedling period was analyzed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>In the study, phytase activity of 13 different bacteria was investigated, and phytase was purified from <i>Lactobacillus kefiri</i>, showing the highest activity, and its biochemical properties were determined. Phytase was immobilized on zinc oxide (ZnO) nanoparticles and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopes analysis. The effects of ZnONps, immobilized phytase, and free phytase on the growth parameters of tomato plant were investigated. Tomato seeds were soaked with ZnONps, immobilized and free phytase for 30 min at room temperature and sown in pots containing suitable growing medium. Vegetative development of tomato plant, plant height, number of lateral branches, main stem diameter, distance between nodes, number of nodes, main root, and shoot length were determined.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Phytase was partially purified with 7.60% recovery and specific activity of 1758.5 (EU mg<sup>−1</sup> protein). Molecular mass of partially purified phytase was approx.72 kD, optimum pH and temperature values were determined as pH 5.0 and 70–80°C, respectively. Immobilized phytase caused a significant increase of 41.1% in plant height, 64.1% in main root, and 36.1% in shoot length in tomato plants compared to the control. In addition, a significant increase was observed in the number of side branches, main stem diameter, distance between nodes, number of nodes, and vegetative growth of the plant.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 ","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"187 4","pages":"533-544"},"PeriodicalIF":2.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202300311","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967947","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}