Meiyu Li, Xiaoyu Zhao, Muhammad Riaz, Muhammad Faheem Adil, Muhammad Ishfaq, Shafaque Sehar, Shangxuan Liu, Huajun Liu, Songlin Yang, Yan Wang, Baiquan Song
{"title":"氮锌优化施用通过减少氮素损失和提高光合效率提高东北甜菜产量和品质。","authors":"Meiyu Li, Xiaoyu Zhao, Muhammad Riaz, Muhammad Faheem Adil, Muhammad Ishfaq, Shafaque Sehar, Shangxuan Liu, Huajun Liu, Songlin Yang, Yan Wang, Baiquan Song","doi":"10.1016/j.plaphy.2025.110520","DOIUrl":null,"url":null,"abstract":"<p><p>Excessive nitrogen (N) fertilizer input and insufficient zinc (Zn) fertilizer application are widespread in China's sugar beet production. These practices limit yield, contribute to resource waste, and cause environmental pollution. Optimizing N and Zn fertilization can promote sugar beet growth. However, the regulatory mechanisms of optimized N and Zn fertilization on photosynthetic characteristics of sugar beet remains unclear. Here, field experiments with three replications of each treatment were conducted in Northeast China (Harbin and Shuangyashan) from 2020 to 2021, comparing conventional fertilization (CF), optimized N and Zn fertilization treatments (OPT), and corresponding no-N treatments (CF-N, OPT-N). The results indicated that OPT significantly improved the photosynthetic rate (Pn) by 8.28%, transpiration rate (Tr) by 9.31%, maximum photochemical efficiency of PSII (F<sub>v</sub>/F<sub>m</sub>) by 25.04 %, potential photochemical activity of PSII (F<sub>v</sub>/F<sub>o</sub>) by 8.07%, and light energy absorption per unit reaction center (ABS/RC) by 13.01% in beet leaves. This resulted in a two-year average yield increase of 10.18% and 5.69% in Harbin and Shuangyashan, respectively. Moreover, in Harbin and Shuangyashan, OPT markedly increased the average sucrose content in sugar beet roots by 7.03% and refined sugar content by 7.31%, while decreasing amino N by 21.10% and Na content by 7.93%. OPT reduced total N loss by 16.48% and improved NUE by 20.76%, contributing to increased economic (6.43%), social (28.72%), and ecological (25.15%) benefits. In summary, optimizing N and Zn fertilization practices is an effective way to achieve stable and increased sugar beet yields, improve quality and efficiency, and reduce N losses in Northeast China. This study shows promise in improving planting efficiency, ecological sustainability, and promoting sustainable agricultural production.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"229 Pt C","pages":"110520"},"PeriodicalIF":5.7000,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimized nitrogen and zinc fertilization boosts yield and quality in sugar beet cultivation in Northeast China by reducing nitrogen losses and enhancing photosynthetic efficiency.\",\"authors\":\"Meiyu Li, Xiaoyu Zhao, Muhammad Riaz, Muhammad Faheem Adil, Muhammad Ishfaq, Shafaque Sehar, Shangxuan Liu, Huajun Liu, Songlin Yang, Yan Wang, Baiquan Song\",\"doi\":\"10.1016/j.plaphy.2025.110520\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Excessive nitrogen (N) fertilizer input and insufficient zinc (Zn) fertilizer application are widespread in China's sugar beet production. These practices limit yield, contribute to resource waste, and cause environmental pollution. Optimizing N and Zn fertilization can promote sugar beet growth. However, the regulatory mechanisms of optimized N and Zn fertilization on photosynthetic characteristics of sugar beet remains unclear. Here, field experiments with three replications of each treatment were conducted in Northeast China (Harbin and Shuangyashan) from 2020 to 2021, comparing conventional fertilization (CF), optimized N and Zn fertilization treatments (OPT), and corresponding no-N treatments (CF-N, OPT-N). The results indicated that OPT significantly improved the photosynthetic rate (Pn) by 8.28%, transpiration rate (Tr) by 9.31%, maximum photochemical efficiency of PSII (F<sub>v</sub>/F<sub>m</sub>) by 25.04 %, potential photochemical activity of PSII (F<sub>v</sub>/F<sub>o</sub>) by 8.07%, and light energy absorption per unit reaction center (ABS/RC) by 13.01% in beet leaves. This resulted in a two-year average yield increase of 10.18% and 5.69% in Harbin and Shuangyashan, respectively. Moreover, in Harbin and Shuangyashan, OPT markedly increased the average sucrose content in sugar beet roots by 7.03% and refined sugar content by 7.31%, while decreasing amino N by 21.10% and Na content by 7.93%. OPT reduced total N loss by 16.48% and improved NUE by 20.76%, contributing to increased economic (6.43%), social (28.72%), and ecological (25.15%) benefits. In summary, optimizing N and Zn fertilization practices is an effective way to achieve stable and increased sugar beet yields, improve quality and efficiency, and reduce N losses in Northeast China. 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Optimized nitrogen and zinc fertilization boosts yield and quality in sugar beet cultivation in Northeast China by reducing nitrogen losses and enhancing photosynthetic efficiency.
Excessive nitrogen (N) fertilizer input and insufficient zinc (Zn) fertilizer application are widespread in China's sugar beet production. These practices limit yield, contribute to resource waste, and cause environmental pollution. Optimizing N and Zn fertilization can promote sugar beet growth. However, the regulatory mechanisms of optimized N and Zn fertilization on photosynthetic characteristics of sugar beet remains unclear. Here, field experiments with three replications of each treatment were conducted in Northeast China (Harbin and Shuangyashan) from 2020 to 2021, comparing conventional fertilization (CF), optimized N and Zn fertilization treatments (OPT), and corresponding no-N treatments (CF-N, OPT-N). The results indicated that OPT significantly improved the photosynthetic rate (Pn) by 8.28%, transpiration rate (Tr) by 9.31%, maximum photochemical efficiency of PSII (Fv/Fm) by 25.04 %, potential photochemical activity of PSII (Fv/Fo) by 8.07%, and light energy absorption per unit reaction center (ABS/RC) by 13.01% in beet leaves. This resulted in a two-year average yield increase of 10.18% and 5.69% in Harbin and Shuangyashan, respectively. Moreover, in Harbin and Shuangyashan, OPT markedly increased the average sucrose content in sugar beet roots by 7.03% and refined sugar content by 7.31%, while decreasing amino N by 21.10% and Na content by 7.93%. OPT reduced total N loss by 16.48% and improved NUE by 20.76%, contributing to increased economic (6.43%), social (28.72%), and ecological (25.15%) benefits. In summary, optimizing N and Zn fertilization practices is an effective way to achieve stable and increased sugar beet yields, improve quality and efficiency, and reduce N losses in Northeast China. This study shows promise in improving planting efficiency, ecological sustainability, and promoting sustainable agricultural production.
期刊介绍：
Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement.
Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB.
Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.
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