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Optimizing soil microbial functions under long-term straw return enhances nutrient acquisition, thereby improving nutrient availability and crop productivity in tobacco-rice rotation systems of southern China SCIE
期刊论文 | 2026 , 397 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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Abstract :

Rice straw return is a crucial practice for recycling organic matter in agricultural systems, but long-term incorporation can lead to recalcitrant carbon (C) accumulation, suppress nutrient release, and inhibit microbial metabolism, thereby reducing soil nutrient availability and crop productivity. Lime and decomposing agents are common supplementary measures, yet their rhizosphere microbiome-mediated mechanisms remain poorly understood. Here, we conducted a field study on a long-term tobacco-rice rotation straw return platform in Southern China (established 2003) during 2020-2021, including straw removal (RM), conventional straw return (SR), and ecological enhancement treatments (SR + L: lime; SR + A: decomposing agent). We evaluated crop productivity, soil nutrient availability, and microbial nutrient acquisition, and profiled rhizosphere microbial responses during the tobacco season using high-throughput sequencing. RM and SR showed no significant difference in yields, whereas SR suppressed soil C and nitrogen (N) availability and reduced tobacco dry matter and N accumulation. In contrast, SR + L and SR + A enhanced rhizosphere nutrient acquisition: SR + L increased Nacquiring enzyme activities by 29.6-35.7 %, and SR + A increased C-acquiring activities by 35.3-49.4 %. Both treatments improved soil carbon and nitrogen availability in the tobacco season by 5.6-8.4 % and 1.5-1.7 %, and in the rice season by 4.5-5.8 % and 1.6-1.9 %, while also enhancing phosphorus (P) availability, alleviating microbial carbon and nitrogen limitation, and increasing tobacco and rice yields by 16.5 % and 4.2 %, respectively. Under SR, key rhizosphere microbial communities exhibited inhibited tricarboxylic acid cycle, glycolysis, and N and P transformation pathways, explaining reduced nutrient availability and crop productivity. Ecological enhancement activated metabolic pathways, optimized fungal communities, promoted saprotrophic fungi, and suppressed pathogens, achieving multi-pathway, multi-element functional integration that improved soil ecological function and system stability, while identifying the core species Acidothermus, which was significantly positively correlated with nutrient availability. These findings reveal the coupled mechanisms of nutrient limitation and microbial functional impairment under long-term straw return and highlight the pivotal roles of keystone microbial communities and core species in ecological restoration and yield improvement, providing a theoretical basis and practical guidance for optimized straw return management and precise ecological interventions.

Keyword :

Crop rotation pattern Crop rotation pattern Microbial function Microbial function Nutrient availability Nutrient availability Straw return Straw return

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GB/T 7714 Zhang, Bianhong , Li, Rikun , Chen, Zhicheng et al. Optimizing soil microbial functions under long-term straw return enhances nutrient acquisition, thereby improving nutrient availability and crop productivity in tobacco-rice rotation systems of southern China [J]. | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2026 , 397 .
MLA Zhang, Bianhong et al. "Optimizing soil microbial functions under long-term straw return enhances nutrient acquisition, thereby improving nutrient availability and crop productivity in tobacco-rice rotation systems of southern China" . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT 397 (2026) .
APA Zhang, Bianhong , Li, Rikun , Chen, Zhicheng , Zeng, Chunli , Liao, Songquan , Liu, Yazhou et al. Optimizing soil microbial functions under long-term straw return enhances nutrient acquisition, thereby improving nutrient availability and crop productivity in tobacco-rice rotation systems of southern China . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2026 , 397 .
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Comparative and synergistic impacts of lime and biochar on soil properties, nitrogen transformation, and microbial function in acidic soils under tobacco cropping SCIE
期刊论文 | 2025 , 16 | FRONTIERS IN PLANT SCIENCE
WoS CC Cited Count: 2
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Introduction Lime and biochar are widely utilized to enhance nitrogen utilization in crops grown on acidic soils, though each has its own set of limitations. Understanding their combined effects is crucial for optimizing soil remediation strategies.Methods This study investigates the impact of lime and biochar on nitrogen utilization efficiency (NUE) in a tobacco monoculture system, which has been practiced for 20 years on acidified soils in Fuzhou, southeastern China, over the period from 2021 to 2022. Four treatments were applied: control (CK), lime alone (L), biochar alone (B), and a lime-biochar combination (L+B).Results The results indicated that all treatments significantly improved NUE, with increases ranging from 20.07% to 27.17% compared to CK. Biochar (B) was more effective than lime (L), and the combined treatment (L+B) showed comparable effects to biochar alone. Correlation analysis revealed that increases in soil pH and exchangeable base cations facilitated nitrogen transformation, thereby enhancing NUE. Lime treatments (L, L+B) promoted nitrification potential in rhizosphere soil, whereas biochar application (B, L+B) resulted in elevated nitrate nitrogen content. Microbial functional analysis indicated that lime (L, L+B) enhanced nitrification, while biochar (B, L+B) fostered dissimilatory nitrate reduction, thereby improving nitrogen retention. Pearson correlation analysis demonstrated a strong positive relationship between dissimilatory nitrate reduction and both soil alkali-hydrolyzable nitrogen and nitrate nitrogen contents.Conclusion These findings suggest that lime enhances nitrification, while biochar promotes nitrate retention, together increasing soil nitrogen availability. The combined application of lime and biochar integrates these benefits, yielding results comparable to biochar alone. This study offers valuable insights into the synergistic use of lime and biochar for mitigating soil acidification and optimizing nitrogen management in agricultural systems.

Keyword :

acidic soil acidic soil biochar biochar lime lime nitrogen utilization efficiency nitrogen utilization efficiency tobacco tobacco

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GB/T 7714 Zhang, Bianhong , Tang, Lina , Chen, Zhicheng et al. Comparative and synergistic impacts of lime and biochar on soil properties, nitrogen transformation, and microbial function in acidic soils under tobacco cropping [J]. | FRONTIERS IN PLANT SCIENCE , 2025 , 16 .
MLA Zhang, Bianhong et al. "Comparative and synergistic impacts of lime and biochar on soil properties, nitrogen transformation, and microbial function in acidic soils under tobacco cropping" . | FRONTIERS IN PLANT SCIENCE 16 (2025) .
APA Zhang, Bianhong , Tang, Lina , Chen, Zhicheng , Chen, Xiaoyan , You, Lindong , Pan, Ruixin et al. Comparative and synergistic impacts of lime and biochar on soil properties, nitrogen transformation, and microbial function in acidic soils under tobacco cropping . | FRONTIERS IN PLANT SCIENCE , 2025 , 16 .
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Molecular evolution of the bZIP family in allotetraploid Gossypium and GhbZIP017 function under drought stress SCIE
期刊论文 | 2025 , 44 (10) | PLANT CELL REPORTS
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Key message203 bZIP members were identified in each G. barbadence and G. hirsutum and GhbZIP017 from the A subfamily was a novel drought-related member in cotton.AbstractThe basic leucine zipper (bZIP) transcription factors are widely distributed in plants, but the evolutionary history is still unclear in allotetraploid Gossypium barbadense and Gossypium hirsutum. In this study, 203 bZIP members were identified in each G. barbadense and G. hirsutum. The bZIP members could be further divided into 13 subfamilies. A total of 227 gene duplication events were discovered in two allotetraploid cotton species and mainly occurred in the cotton ancestor. Furthermore, the bZIP family had a conserved evolutionary history in two allotetraploid cotton species. Meanwhile, the bZIP members had tissue-specific expression levels. Moreover, through the RNA-seq analysis, GhbZIP017 from the A subfamily played an important role in drought stress response. GhbZIP017 was localized in the nucleus and acted as a transcriptional repressor. The expression levels of GhbZIP017 in leaves and roots could be highly induced by drought stress. GhbZIP017 overexpression in Arabidopsis could enhance drought tolerance with a higher survival rate, lower membrane ion leakage, higher SOD and POD activity, lower MDA content, and higher expression levels of some drought-related genes. Overall, these results could help us uncover the evolutionary history of the bZIP members in cotton and provide a candidate gene GhbZIP017 for drought breeding in G. hirsutum.

Keyword :

Cotton Cotton Drought stress response Drought stress response Evolutionary history Evolutionary history GhbZIP017 GhbZIP017 The bZIP family The bZIP family

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GB/T 7714 Ye, Fangting , He, Jing , Li, Zhaowei et al. Molecular evolution of the bZIP family in allotetraploid Gossypium and GhbZIP017 function under drought stress [J]. | PLANT CELL REPORTS , 2025 , 44 (10) .
MLA Ye, Fangting et al. "Molecular evolution of the bZIP family in allotetraploid Gossypium and GhbZIP017 function under drought stress" . | PLANT CELL REPORTS 44 . 10 (2025) .
APA Ye, Fangting , He, Jing , Li, Zhaowei , Wu, Huanyu , Zhang, Ziyou , Fu, Dan et al. Molecular evolution of the bZIP family in allotetraploid Gossypium and GhbZIP017 function under drought stress . | PLANT CELL REPORTS , 2025 , 44 (10) .
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The underlying mechanism of variety-water-nitrogen-stubble damage interactions on yield formation in ratoon rice with low stubble height under mechanized harvesting SCIE
期刊论文 | 2024 , 23 (3) , 806-823 | JOURNAL OF INTEGRATIVE AGRICULTURE
WoS CC Cited Count: 8
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Agronomic measures are the key to promote the sustainable development of ratoon rice by reducing the damage from mechanical crushing to the residual stubble of the main crop, thereby mitigating the impact on axillary bud sprouting and yield formation in ratoon rice. This study used widely recommended conventional rice Jiafuzhan and hybrid rice Yongyou 2640 as the test materials to conduct a four -factor block design field experiment in a greenhouse of the experimental farm of Fujian Agricultural and Forestry University, China from 2018 to 2019. The treatments included fertilization and no fertilization, alternate wetting and drying irrigation and continuous water flooding irrigation, and plots with and without artificial crushing damage on the rice stubble. At the same time, a 13 C stable isotope in -situ detection technology was used to fertilize the pot experiment. The results showed significant interactions among varieties, water management, nitrogen application and stubble status. Relative to the long-term water flooding treatment, the treatment with sequential application of nitrogen fertilizer coupled with moderate field drought for root -vigor and tiller promotion before and after harvesting of the main crop, significantly improved the effective tillers from low position nodes. This in turn increased the effective panicles per plant and grains per panicle by reducing the influence of artificial crushing damage on rice stubble and achieving a high yield of the regenerated rice. Furthermore, the partitioning of 13 C assimilates to the residual stubble and its axillary buds were significantly improved at the mature stage of the main crop, while the translocation rate to roots and rhizosphere soil was reduced at the later growth stage of ratooning season rice. This was triggered by the metabolism of hormones and polyamines at the stem base regulated by the interaction of water and fertilizer at this time. We therefore suggest that to achieve a high yield of ratoon rice with low stubble height under mechanized harvesting, the timely application of nitrogen fertilizer is fundamental, coupled with moderate field drying for root -vigor preservation and tiller promotion before and after the mechanical harvesting of the main crop.

Keyword :

mechanized harvesting mechanized harvesting ratoon rice ratoon rice rice stubble rice stubble yield attributes yield attributes

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GB/T 7714 Zou, Jingnan , Pang, Ziqin , Li, Zhou et al. The underlying mechanism of variety-water-nitrogen-stubble damage interactions on yield formation in ratoon rice with low stubble height under mechanized harvesting [J]. | JOURNAL OF INTEGRATIVE AGRICULTURE , 2024 , 23 (3) : 806-823 .
MLA Zou, Jingnan et al. "The underlying mechanism of variety-water-nitrogen-stubble damage interactions on yield formation in ratoon rice with low stubble height under mechanized harvesting" . | JOURNAL OF INTEGRATIVE AGRICULTURE 23 . 3 (2024) : 806-823 .
APA Zou, Jingnan , Pang, Ziqin , Li, Zhou , Guo, Chunlin , Lin, Hongmei , Li, Zheng et al. The underlying mechanism of variety-water-nitrogen-stubble damage interactions on yield formation in ratoon rice with low stubble height under mechanized harvesting . | JOURNAL OF INTEGRATIVE AGRICULTURE , 2024 , 23 (3) , 806-823 .
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Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China EI
期刊论文 | 2024 | SSRN
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Ratoon rice utilizes the axillary buds sprouting from the remaining stubble of the main crop after harvest to form panicles, enabling a second harvest. However, mechanized harvesting often resulted in damage to the rice stubbles in the rolling zone, potentially leading to reduced yield. Enhancing the number of tillers in the rolling zone through optimized agronomic measures was crucial for achieving higher yield. However, research on water and fertilizer management corresponding to low stubble ratoon rice under mechanized harvesting was limited. A two-factor experiment was conducted to assess the impacts of water regimes (flooded, FL; alternate wetting and drying, AWD) and nitrogen fertilizer management (0 kg N ha-1, CK; Tiller promotion fertilizer 90 kg N ha-1, N; Delayed nitrogen application: Tiller promotion fertilizer 60 kg N ha-1 + Booting stage fertilizer 30 kg N ha-1, SN) on the yield formation, greenhouse gas emissions, and carbon footprint of low stubble ratoon rice. The results indicated significant effects of water regimes and nitrogen fertilizer on yield. Compared to N-FL, SN-AWD significantly increased average annual yield by 25.39%. The increment in tillers in the rolling zone ranged from 36.58% to 72.72% under AWD compared to flooding, and SN-AWD significantly increased the ratoon ability of the basal first and second nodes compared to N-FL. Soil quality index and ecosystem multifunctionality under SN-AWD increased by 32.37% and 9.05 times, respectively, compared to N-FL, resulting in significant increases in root length, root surface area, and root volume, consequently enhancing pre-anthesis and post-anthesis dry matter accumulation and ultimately improving yield. Although N2O emissions increased under SN-AWD compared to N-FL, CH4 cumulative emissions decreased significantly by 37.86% on average over two years, leading to a 23.02% reduction in total greenhouse gas emissions and a 38.62% reduction in carbon footprint. SN-AWD attained maximum net ecosystem economic benefit (NEEB), increasing by 35.42% compared to N-FL. Overall, the comprehensive analysis suggested that SN-AWD was a sustainable water and fertilizer management approach beneficial for balancing ratoon season yields, environmental footprint, and economic benefits. © 2024, The Authors. All rights reserved.

Keyword :

Carbon footprint Carbon footprint Ecosystems Ecosystems Emission control Emission control Floods Floods Gas emissions Gas emissions Greenhouse gases Greenhouse gases Harvesting Harvesting Nitrogen fertilizers Nitrogen fertilizers Sustainable development Sustainable development Water conservation Water conservation

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GB/T 7714 Lan, Chaojie , Zou, Jingnan , Xu, Hailong et al. Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China [J]. | SSRN , 2024 .
MLA Lan, Chaojie et al. "Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China" . | SSRN (2024) .
APA Lan, Chaojie , Zou, Jingnan , Xu, Hailong , Qin, Bin , Li, Jinying , Chen, Ting et al. Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China . | SSRN , 2024 .
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生物炭用量对烟草青枯病及土壤细菌群落的影响
期刊论文 | 2024 , 38 (06) , 1186-1195 | 核农学报
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为探究生物炭用量对烟草青枯病发生及土壤细菌群落结构和功能的影响,以植烟病圃土壤为研究对象,设置5个炭/土比0、1.5%、3.0%、4.5%、6.0%(记为TS0、TS15、TS30、TS45、TS60)的盆栽试验,研究烤烟青枯病发病情况、土壤农化性状、细菌群落结构与功能。结果表明,生物炭可有效减轻烟草青枯病发病情况,以炭/土比3.0%效果最佳。生物炭处理均可显著增加土壤pH值及有机质含量、改善土壤养分比例。冗余分析(RDA)结果表明,土壤pH值及养分是影响烟草青枯病的重要因子,提升土壤pH值及养分含量可有效减轻青枯病发生程度。进一步分析发现,生物炭可提高土壤细菌Alpha多样性,与对照相比,炭/土比1.5%~6.0%处理Chaol指数提高了8.24%~26.50%,变形菌门丰度分别增加了2.28、9.70、5.40、5.28个百分点,而酸杆菌门丰度分别降低了5.48、7.05、8.09、7.06个百分点。表型预测结果表明,生物炭可通过提高变形菌门丰度及降低酸杆菌门丰度来减少潜在致病菌丰度;与对照相比,炭/土比3.0%处理的芽孢杆菌属、鞘氨醇单胞菌属、出芽单胞菌属丰度分别增加5.77、0.24、0.36个百分点,罗河杆菌属丰度降低1.70个百分点,且雷尔氏菌属丰度随着施炭量的增加而逐渐减小。此外,生物炭可提高土壤氨基酸代谢、细胞生长与死亡功能类群丰度,且土壤pH值、有机质、速效钾、全素养分含量与氨基酸代谢、细胞生长与死亡功能具有正向效应,而罗河杆菌属与其具有负向效应。综上,生物炭可显著改善土壤养分比例,进而改善土壤细菌群落结构和功能特性、激发细菌群落氨基酸代谢等功能,提升烟株抗病性,减少青枯病的发生程度,以炭/土比3.0%~4.5%防控烟株青枯病效果较好。本研究结果为烟草种植中的病害防控和土壤改良提供了技术参考。

Keyword :

功能预测 功能预测 土壤农化性状 土壤农化性状 土壤细菌群落结构 土壤细菌群落结构 烟草青枯病 烟草青枯病 生物炭 生物炭

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GB/T 7714 潘美清 , 唐莉娜 , 吴长征 et al. 生物炭用量对烟草青枯病及土壤细菌群落的影响 [J]. | 核农学报 , 2024 , 38 (06) : 1186-1195 .
MLA 潘美清 et al. "生物炭用量对烟草青枯病及土壤细菌群落的影响" . | 核农学报 38 . 06 (2024) : 1186-1195 .
APA 潘美清 , 唐莉娜 , 吴长征 , 杨铭榆 , 张汴泓 , 黄锦文 et al. 生物炭用量对烟草青枯病及土壤细菌群落的影响 . | 核农学报 , 2024 , 38 (06) , 1186-1195 .
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Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China SCIE
期刊论文 | 2024 , 302 | AGRICULTURAL WATER MANAGEMENT
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Ratoon rice utilizes the axillary buds sprouting from the remaining stubble of the main crop after harvest to form panicles, enabling a second harvest. However, mechanized harvesting often resulted in damage to the rice stubbles in the rolling zone, potentially leading to reduced yield. Enhancing the number of tillers in the rolling zone through optimized agronomic measures was crucial for achieving higher yield. However, research on water and fertilizer management corresponding to low stubble ratoon rice under mechanized harvesting was limited. A two-factor experiment was conducted to assess the impacts of water regimes (flooded; alternate wetting and drying) and nitrogen fertilizer management (0 kg N ha(-1); Tiller promotion fertilizer 90 kg N ha(-1); Split nitrogen application: Tiller promotion fertilizer 60 kg N ha(-1) + Booting stage fertilizer 30 kg N ha(-1)) on the yield formation, greenhouse gas emissions, and carbon footprint of low stubble ratoon rice. The results indicated significant effects of water regimes and nitrogen fertilizer on yield. Compared to single application of tillerpromoting fertilizer coupled with continuous flooding (N-FL), Split application of tiller-promoting fertilizer coupled with alternate wetting and drying (SN-AWD) significantly increased average annual yield by 25.4%. SNAWD significantly increased the ratoon ability of the basal first and second nodes compared to N-FL. The soil quality index and ecosystem multifunctionality under SN-AWD increased by an average of 32.37% and 10.16 times, respectively, compared to N-FL. This increase resulted in significant enhancements in root length and root surface area, consequently improving pre-anthesis and post-anthesis dry matter accumulation and ultimately enhancing yield. Although N2O emissions increased under SN-AWD compared to N-FL, CH4 cumulative emissions decreased significantly by 37.86% on average over two years, leading to a 23.02% reduction in total greenhouse gas emissions and a 38.62% reduction in carbon footprint per unit grain. SN-AWD attained maximum net ecosystem economic benefit (NEEB), increasing by 35.42% compared to N-FL. Overall, the comprehensive analysis suggested that SN-AWD was a sustainable water and fertilizer management approach beneficial for balancing ratoon season yields, environmental footprint, and economic benefits.

Keyword :

Axillary bud Axillary bud Carbon footprint Carbon footprint Greenhouse gas emissions Greenhouse gas emissions Ratoon rice Ratoon rice Yield Yield

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GB/T 7714 Lan, Chaojie , Zou, Jingnan , Xu, Hailong et al. Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China [J]. | AGRICULTURAL WATER MANAGEMENT , 2024 , 302 .
MLA Lan, Chaojie et al. "Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China" . | AGRICULTURAL WATER MANAGEMENT 302 (2024) .
APA Lan, Chaojie , Zou, Jingnan , Xu, Hailong , Qin, Bin , Li, Jinying , Chen, Ting et al. Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China . | AGRICULTURAL WATER MANAGEMENT , 2024 , 302 .
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烟-稻轮作下减氮配施生物炭对水稻茎鞘同化物转运和产量形成的影响
期刊论文 | 2024 , 38 (05) , 555-566 | 中国水稻科学
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【目的】在烟-稻复种连作系统中,探讨烟后作水稻茎鞘物质转运及其产量对减氮配施生物炭处理的响应,以期为复种连作土壤改良提供科学依据。【方法】以杂交水稻甬优1540为材料,常规施氮栽培为对照(T0),在烤烟收获后全土层施用30 t/hm2生物炭的前提下,设置纯氮不减施(T1)、纯氮减施10%(T2)、纯氮减施20%(T3)和纯氮减施30%(T4)处理,分析了水稻产量变化与茎鞘同化物积累、转运的关系及其调控机制。【结果】结果表明,2年田间试验各处理产量均表现为T1>T2>T3>T0>T4,其中减氮10%~20%处理(T2和T3)与未减氮处理(T1)之间差异不显著,但均显著高于T0和T4,T2与T3处理2年平均实际产量分别比对照提高了13.94%和13.46%。收获指数方面,T2和T3处理均显著高于其他处理,各处理谷草比表现为T3>T2>T4>T1>T0。生物炭处理并适当减氮下抽穗期叶片净光合速率及SPAD值均显著高于对照。T1处理分蘖数峰值最高,但其分蘖成穗率却显著低于T2和T3处理。在茎鞘物质输出率和茎鞘物质转化率上,T3与T2处理差异不显著,但均显著高于其他处理;茎鞘非结构性碳水化合物(Non-Structural Carbohydrate,NSC)转运量、转运率及籽粒贡献率与茎鞘物质输出率和茎鞘物质转化率表现一致。茎鞘蔗糖相关酶活性分析表明,T3和T2处理水稻灌浆早中期α-淀粉酶、β-淀粉酶、蔗糖合成酶(SS)、蔗糖磷酸合成酶(SPS)活性均最高,但抽穗后20 d这些酶活性则以T1处理最高。【结论】生物炭可改善水稻灌浆期叶片光合性能,减施10%~20%氮肥有利于提高水稻抽穗期茎鞘蔗糖合成与转运酶活性,促进茎鞘物质的积累与转运,提高水稻收获指数,实现“减氮保产”的栽培目标。

Keyword :

NSC NSC 减氮 减氮 水稻 水稻 烟-稻轮作 烟-稻轮作 生物炭 生物炭

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GB/T 7714 杨铭榆 , 陈志诚 , 潘美清 et al. 烟-稻轮作下减氮配施生物炭对水稻茎鞘同化物转运和产量形成的影响 [J]. | 中国水稻科学 , 2024 , 38 (05) : 555-566 .
MLA 杨铭榆 et al. "烟-稻轮作下减氮配施生物炭对水稻茎鞘同化物转运和产量形成的影响" . | 中国水稻科学 38 . 05 (2024) : 555-566 .
APA 杨铭榆 , 陈志诚 , 潘美清 , 张汴泓 , 潘睿欣 , 尤林东 et al. 烟-稻轮作下减氮配施生物炭对水稻茎鞘同化物转运和产量形成的影响 . | 中国水稻科学 , 2024 , 38 (05) , 555-566 .
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Synergistic co-evolution of rhizosphere bacteria in response to acidification amelioration strategies: impacts on the alleviation of tobacco wilt and underlying mechanisms SCIE
期刊论文 | 2024 , 15 | FRONTIERS IN MICROBIOLOGY
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Soil acidification represents a severe threat to tobacco cultivation regions in South China, exacerbating bacterial wilt caused by Ralstonia solanacearum. The comprehension of the underlying mechanisms that facilitate the restoration of rhizosphere microbial communities in "healthy soils" is imperative for ecologically managing tobacco bacterial wilt. This study focuses on acidified tobacco soils that have been subjected to continuous cultivation for 20 years. The experimental treatments included lime (L), biochar (B), and a combination of lime and biochar (L+B), in addition to a control group (CK). Utilizing rhizosphere biology and niche theory, we assessed disease suppression effects, changes in soil properties, and the co-evolution of the rhizosphere bacterial community. Each treatment significantly reduced tobacco bacterial wilt by 16.67% to 20.14% compared to the control group (CK) (p < 0.05) and increased yield by 7.86% to 27.46% (p < 0.05). The biochar treatment (B) proved to be the most effective, followed by the lime-biochar combination (L+B). The key factors controlling wilt were identified through random forest regression analysis as an increase in soil pH and exchangeable bases, along with a decrease in exchangeable acidity. However, lime treatment alone led to an increase in soil bulk density and a decrease in available nutrients, whereas both biochar and lime-biochar treatments significantly improved these parameters (p < 0.05). No significant correlation was found between the abundance of Ralstonia and wilt incidence. Nonetheless, all treatments significantly expanded the ecological niche breadth and average variation degree (AVD), enhanced positive interactions and cohesion within the community, and intensified negative interactions involving Ralstonia. This study suggests that optimizing community niches and enhancing pathogen antagonism are key mechanisms for mitigating tobacco wilt in acidified soils. It recommends using lime-biochar mixtures as soil amendments due to their potential ecological and economic benefits. This study offers valuable insights for disease control strategies and presents a novel perspective for research on Solanaceous crops.

Keyword :

acidification amelioration acidification amelioration bacterial wilt bacterial wilt rhizosphere bacteria rhizosphere bacteria synergistic co-evolution synergistic co-evolution tobacco tobacco

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GB/T 7714 Zhang, Bian-hong , Tang, Li-na , Li, Ri-kun et al. Synergistic co-evolution of rhizosphere bacteria in response to acidification amelioration strategies: impacts on the alleviation of tobacco wilt and underlying mechanisms [J]. | FRONTIERS IN MICROBIOLOGY , 2024 , 15 .
MLA Zhang, Bian-hong et al. "Synergistic co-evolution of rhizosphere bacteria in response to acidification amelioration strategies: impacts on the alleviation of tobacco wilt and underlying mechanisms" . | FRONTIERS IN MICROBIOLOGY 15 (2024) .
APA Zhang, Bian-hong , Tang, Li-na , Li, Ri-kun , Pan, Rui-xin , You, Lin-dong , Chen, Xiao-yan et al. Synergistic co-evolution of rhizosphere bacteria in response to acidification amelioration strategies: impacts on the alleviation of tobacco wilt and underlying mechanisms . | FRONTIERS IN MICROBIOLOGY , 2024 , 15 .
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不同稻草还田技术对烟—稻轮作系统土壤养分、有机碳及微生物多样性的影响
期刊论文 | 2023 , 37 (04) , 415-426 | 中国水稻科学
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【目的】探讨不同稻草还田技术措施对土壤特性的影响及根际微生物修复和改良土壤的内在机制,探索适合福建烟-稻轮作区的稻草高效还田技术,以期为烟-稻轮作区作物优质高效栽培提供依据。【方法】以烤烟“云烟87”和晚稻“甬优1540”为材料,通过不同的稻草还田配施技术处理,进行了2年的田间定位试验,分析比较了烟-稻轮作系统耕层土壤养分、根际微生物和作物产量的变化规律以及根际微生物与土壤环境因子间的内在关系。【结果】产量分析表明,连续2年稻草还田后,各处理产量均比对照显著增加,其中配施石灰和尿素的T2处理最显著,其烟草和水稻产量分别比对照提高25.67%、11.49%;其次是配施腐秆灵和尿素的T3处理,纯稻草T1还田处理效果最差;T1处理第1年稻草还田后烟草产量与对照差异不显著,第2年烟草和水稻产量分别比对照提高3.77%和5.90%。耕层土壤养分特性分析表明,经连续2年的稻草还田处理后,耕层土壤养分与有机碳含量均显著增加,其中T2处理效果最好,其次是T3处理。T2处理碱解氮、有效磷、速效钾、有机碳和可溶性有机碳含量分别比对照提高了7.09%、5.97%、3.01%、11.32%和5.47%。根际微生物群落分析表明,与对照相比,T2、T3处理下碳源代谢相关的HSB_OF53-F07、自毒物质降解有关的节杆菌属(Arthrobacter)和纤维素分解有关的假散囊菌属(Pseudeurotium)丰度均显著上升,而与发病相关的腐质霉属(Humicola)和青霉菌属(Penicillium)相对丰度则显著下降。相关分析表明,根际有益菌丰度与土壤养分因子多为正相关,而致病菌的丰度则与土壤养分因子负相关。【结论】稻草还田配施石灰或腐秆灵和适量速效氮肥,有利于提高耕层养分含量,促进固氮等有益微生物生长,抑制病原菌,为烟-稻轮作提供良好的土壤环境,进而提高作物产量。

Keyword :

土壤养分 土壤养分 根际微生物 根际微生物 烟-稻轮作 烟-稻轮作 稻草还田 稻草还田 群落多样性 群落多样性

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GB/T 7714 黄锦文 , 李日坤 , 陈志诚 et al. 不同稻草还田技术对烟—稻轮作系统土壤养分、有机碳及微生物多样性的影响 [J]. | 中国水稻科学 , 2023 , 37 (04) : 415-426 .
MLA 黄锦文 et al. "不同稻草还田技术对烟—稻轮作系统土壤养分、有机碳及微生物多样性的影响" . | 中国水稻科学 37 . 04 (2023) : 415-426 .
APA 黄锦文 , 李日坤 , 陈志诚 , 张汴泓 , 雷涵 , 潘睿欣 et al. 不同稻草还田技术对烟—稻轮作系统土壤养分、有机碳及微生物多样性的影响 . | 中国水稻科学 , 2023 , 37 (04) , 415-426 .
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