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学者姓名：陈鸿飞
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Context: Ratoon rice relies on stubble axillary buds for secondary harvesting, but mechanical harvesting damages stubbles, while improper water and nitrogen management exacerbates nitrogen loss and yield instability. Objective: To alleviate rolling damage and improve the efficiency of bud-promoting fertilizer (BPF) in machineharvested low stubble ratoon rice (MHLR), crop management strategies were explored through yield formation and nitrogen loss assessments. Methods: A two-year, three-factor split-split plot experiment was conducted. Main plots were soil drying degree (Heavy drying, HD; Light drying, LD), subplots were main crop nitrogen management (Postponed nitrogen application; Traditional nitrogen), and sub-subplots were BPF rates (0, 45, 90 kg N ha-1). Results: Compared to traditional nitrogen application, postponed nitrogen application boosted root surface area (RSA) by 6.43 % and post - anthesis dry matter by 9.1 %, and increased main crop yield by 3.59 %. Postponed nitrogen application lessened dependence on BPF. Under PNN0 (HD, postponed nitrogen, 0 kg N ha-1 BPF), stubble quality and ratoon ability in the non - rolling zone did not decline significantly compared to NN90 (HD, traditional nitrogen, 90 kg N ha-1 BPF). Postponed nitrogen application enhanced the non - rolling zone' s ratoon yield by 6.18 %. In wet grain-filling years, HD improved the rolling zone' s ratoon crop yield by 36.31 %. BPF increased ratoon crop yield, but higher rates provided no further significant gains and even significantly increased total nitrogen losses. Notably, PNN0 achieved an annual yield comparable to that of NN90. Compared with NN90, PNN0 significantly reduced annual cumulative ammonia volatilization (31.11 %), N2O emissions (35.01 %), and nitrogen leaching loss (21.46 %). Results from the 1 5N fertilizer tracing indicated that, in comparison to NN90, PNN0 significantly enhanced the proportion of 1 5N fertilizer accumulated in plants by 21.20% and reduced the proportion of 1 5N fertilizer loss by 25.92%. Conclusion: Within MHLR systems, postponed nitrogen application combined with heavy soil drying and no BPF stabilized annual yield while minimizing nitrogen losses.
Keyword ：
Mechanized harvesting Mechanized harvesting Nitrogen losses Nitrogen losses Ratoon rice Ratoon rice Yield Yield
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| GB/T 7714 | Lan, Chaojie , Xu, Hailong , Qin, Bin et al. Optimizing water and nitrogen management to balance yield and nitrogen loss in mechanically harvested low-stubble ratoon rice [J]. | FIELD CROPS RESEARCH , 2026 , 336 . |
| MLA | Lan, Chaojie et al. "Optimizing water and nitrogen management to balance yield and nitrogen loss in mechanically harvested low-stubble ratoon rice" . | FIELD CROPS RESEARCH 336 (2026) . |
| APA | Lan, Chaojie , Xu, Hailong , Qin, Bin , Li, Jinying , Zhang, Bianhong , Zou, Jingnan et al. Optimizing water and nitrogen management to balance yield and nitrogen loss in mechanically harvested low-stubble ratoon rice . | FIELD CROPS RESEARCH , 2026 , 336 . |
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The ratoon rice cultivation system exhibits high-yield and low-emission characteristics, with carbon (C) sequestration and emissions in paddy fields being influenced by rhizosphere microorganisms. However, the relationship between these effects and microbial nutritional strategies remains unclear. This study utilized four rice varieties with distinct growth durations as materials to analyze the effects and mechanisms of yield formation, rhizosphere microbial dynamics, and net ecosystem carbon budget (NECB) in the main crop (MC), ratoon season rice (RSR), and single mid-late rice (LR) during 2023-2024. Results showed that the daily average yield of ratoon rice (MC+RSR) increased by 77.65 %-86.82 % compared to LR. Analysis of photosynthate allocation revealed that RSR exhibited 72.09 % and 77.35 % reductions in rhizodeposition compared to MC and LR, respectively. Analysis of microbial trophic strategies revealed a 55.54 % and 32.36 % increase in autotroph abundance in RSR relative to MC and LR. Investigation of greenhouse gas intensity (GHGI) and NECB confirmed that the ratoon rice system (MC+RSR) reduced its daily carbon emission index by 52.74 %-56.08 % compared to LR. The MC+RSR system acted as a carbon sink, sequestering 3.12-10.47 t CO2-eq ha-1 , whereas LR functioned as a carbon source, emitting 3.08-4.48 t CO2-eq ha-1 . Therefore, ratoon rice system extends the utilization period of light and thermal resources, enhances yield, and achieves carbon budget surplus. The increase in autotrophic bacteria and corresponding decrease in heterotrophic bacteria represent a critical rhizosphere microecological resilience response to soil carbon sequestration and emission reduction.
Keyword ：
Carbon balance surplus Carbon balance surplus Emission reduction Emission reduction Rhizosphere microecology Rhizosphere microecology Rice ratooning Rice ratooning
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| GB/T 7714 | Li, Jinying , Xu, Hailong , Qin, Bin et al. Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses [J]. | FIELD CROPS RESEARCH , 2025 , 333 . |
| MLA | Li, Jinying et al. "Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses" . | FIELD CROPS RESEARCH 333 (2025) . |
| APA | Li, Jinying , Xu, Hailong , Qin, Bin , Zhang, Bianhong , Chen, Mengying , Weng, Peiying et al. Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses . | FIELD CROPS RESEARCH , 2025 , 333 . |
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The perennial rice (PR) cultivation system is an ecologically sustainable and environmentally-friendly approach that offers enhanced resource efficiency, thereby presenting the potential to supplant traditional double-cropping rice (DR) and ratoon rice (RR) systems in China's southeastern region. However, there is still a dearth of comprehensive studies examining the yield, carbon and nitrogen footprints, economic benefits, and carbon budget balance associated with PR. This study systematically compares the performance of PR, DR, and RR cultivation systems in terms of yield, direct greenhouse gas (GHG) emissions, carbon and nitrogen footprint, net ecological-economic benefits (NEEB), and net ecosystem carbon balance (NECB), based on field trials conducted from 2022 to 2024. The results from three years of research indicated that the annual yield of PR was comparable to that of DR and RR. However, PR exhibited a significant reduction in direct GHG emissions, which were 21.7 %-25.91 % lower than those of DR. Similarly, the carbon and nitrogen footprint of PR were reduced by 19.34 %-25.87 % and 7.12 %-9.17 %, respectively, while the carbon and nitrogen footprint per unit yield decreased by 16.76 %-28.02 % and 7.29 %-9.17 %. Additionally, the annual energy input of PR was reduced by 26.74 % and 2.10 % compared to DR and RR. In terms of economic benefits, the NEEB of PR was 83.24 % higher than that of DR and 10.85 % greater than that of RR. Furthermore, NECB of PR was significantly higher than that of DR and RR, with increases ranging from 15.77 % to 37.87 % and from 15.30 % to 43.45 %, respectively. These advantages were primarily attributed to reductions in methane emissions (CH4), ammonia volatilization (NH3), and lower indirect agricultural inputs. The findings suggest that despite the comparable yield of PR to that of DR and RR over the three-year trial, its significant advantages in terms of carbon and nitrogen footprints, energy input, and economic benefits indicate that PR represents a highly promising sustainable agricultural model for the southeastern region of China. It has the potential to maintain high productivity while reducing resource inputs and environmental pressures. In the future, further optimization of PR breeding and cultivation management may result in higher and more stable yields while maintaining low energy inputs and environmental costs.
Keyword ：
Carbon and nitrogen footprint Carbon and nitrogen footprint Net ecological-economic benefits Net ecological-economic benefits Perennial rice Perennial rice Rice cultivation systems Rice cultivation systems
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| GB/T 7714 | Xu, Hailong , Zhang, Bianhong , Qin, Bin et al. Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits [J]. | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2025 , 390 . |
| MLA | Xu, Hailong et al. "Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits" . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT 390 (2025) . |
| APA | Xu, Hailong , Zhang, Bianhong , Qin, Bin , Li, Jinying , Lan, Chaojie , Zou, Jingnan et al. Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2025 , 390 . |
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Studying the physioecological mechanisms behind the high daily productivity of ratoon rice is essential for improving farming strategies and maintaining stable yields in intensive cropping systems. This study compared the physiological traits of main crop rice (MR), ratooning season rice (RSR), and single-cropping mid-late rice (LR) with the same genotype and flowering time as RSR, from 2021 to 2022. The results demonstrated that RSR maintained higher leaf SPAD values than both MR and LR at the heading stage. Moreover, the translocation efficiency of stem-stored non-structural carbohydrates (NSC) to grains was significantly greater in RSR compared to MR (24.18-58.1%) and LR (24.59-63.5%). C-13 isotope labeling confirmed that RSR exhibited superior assimilate allocation to grain pools, with values 13.7% and 14.74% higher than those of MR and LR, respectively. Anatomical analysis of vascular bundles at panicle-stem nodes showed an increased phloem area proportion in RSR. Furthermore, RSR exhibited elevated expression levels of genes associated with nitrogen uptake and metabolism regulation (AMTs, NRTs, and NRFs), sucrose transport (SUTs, SWEET11, and INVs), and stress tolerance (TPSs and TPPs), particularly within its grain parts, relative to MR and LR. Enzymatic activities of sucrose synthase (SS), sucrose phosphate synthase (SPS), and invertase in RSR grains were also significantly higher than in MR and LR. Further analysis indicated that these advantageous physiological traits in RSR arise from the elevated gene expression and enzyme activities, which are positively modulated by endogenous hormones including zeatin riboside (ZR), abscisic acid (ABA), and indole-3-acetic acid (IAA). These hormones serve as key factors for the efficient coordination of matter production and translocation in rice ratooning. This study provides important theoretical and practical insights into the formation and regulation mechanisms of high and stable yield in ratoon rice.
Keyword ：
Dry matter accumulation Dry matter accumulation Enzymatic activity Enzymatic activity Material transport Material transport Phytohormone Phytohormone Ratoon rice Ratoon rice Translocation Translocation
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| GB/T 7714 | Xie, Yuebin , Zou, Jingnan , Cao, Shuying et al. The Higher Average Daily Grain Yield and Its Formation Mechanisms Underlying the Efficient Photo-Assimilate Transport in Rice Ratooning [J]. | RICE , 2025 , 18 (1) . |
| MLA | Xie, Yuebin et al. "The Higher Average Daily Grain Yield and Its Formation Mechanisms Underlying the Efficient Photo-Assimilate Transport in Rice Ratooning" . | RICE 18 . 1 (2025) . |
| APA | Xie, Yuebin , Zou, Jingnan , Cao, Shuying , Lan, Chaojie , Qin, Bin , Xu, Hailong et al. The Higher Average Daily Grain Yield and Its Formation Mechanisms Underlying the Efficient Photo-Assimilate Transport in Rice Ratooning . | RICE , 2025 , 18 (1) . |
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Rice paddies are a major, persistent source of atmospheric methane (CH4), emission rates depend on the partitioning of photosynthate carbon between the rice plant and the rhizosphere microbiome. Although ratoon season rice (RR) is shown to emit far less CH4 than main-crop rice (MC), the mechanisms have remained unresolved. This work conducts a 2-year field experiment in which RR is compared with MC and with late rice (LR) synchronized to the RR heading stage. Relative to MC and LR, RR lowers daily CH4 flux by 91%, raises daily grain yield by 34%-57%, and increases net economic return by 90%-136%. Mechanistically, 13C-labelling reveals that RR diverted more newly fixed carbon to the grain and less to the rhizosphere, thereby restricting acetate availability for methanogens. Rhizosphere metagenomics show reduced abundance of Methanobacteriaceae and down-regulation of methanogenic genes in RR. This carbon-reallocation pattern is underpinned by an abscisic acid (ABA)-mediated interaction between OsCIPK2 and OsSWEET1A, which simultaneously curtailed carbon efflux from roots and enhanced grain filling. This study is the first to establish a comprehensive framework of "ABA regulation-carbon allocation-microbial function-emission reduction and efficiency enhancement." It provides targetable strategies for carbon allocation and microbial management within climate-smart rice farming systems.
Keyword ：
distribution of photosynthate distribution of photosynthate methane emissions methane emissions methanogenic bacteria methanogenic bacteria ratoon season rice ratoon season rice yield yield
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| GB/T 7714 | Zou, Jingnan , Xu, Hailong , Qin, Bin et al. Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens [J]. | ADVANCED SCIENCE , 2025 . |
| MLA | Zou, Jingnan et al. "Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens" . | ADVANCED SCIENCE (2025) . |
| APA | Zou, Jingnan , Xu, Hailong , Qin, Bin , Lan, Chaojie , Li, Jinying , Zhang, Bianhong et al. Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens . | ADVANCED SCIENCE , 2025 . |
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探索根际微生物响应再生稻生育后期植株衰老进程的菌群演变规律及其生态对策是防止作物早衰发生,促进耕地土壤肥力和作物生产力协同提升的关键。本研究选用2个具有亲缘关系的常规再生稻品种黄华占(Huanghuazhan,HHZ)和丰华占(Fenghuazhan,FHZ)为供试材料,采用高通量测序等方法研究再生稻生育后期根际菌群随植株衰老进程而发生的多样变化、菌群演变生态策略和物种间生态位关系。结果表明, 2个具有紧密亲缘关系的供试品种其生育后期的自然衰老变化趋于一致。但在同等施肥条件下,丰华占生育后期的所有相关生理指标衰败速度均明显高于黄华占,即呈现早衰现象,并显著影响其头季和再生季稻的干物质积累与籽粒灌浆结实,进而减产。进一步分析结果证实,根际微生物多样性与再生稻植株的衰老进程紧密关联,具体表现在随着再生稻生育后期的推进,FHZ根际微生物多样性Chao1指数和Shannon指数下降幅度更大,根际微生物生态位宽度变小。进一步分析发现,HHZ头季稻成熟期较FHZ头季稻成熟期根际土壤显著提高了地杆菌属(Geobacter)、卤囊菌属(Haliangium)、亚硝酸盐氧化菌属(Candidatus＿Nitrotoga)以及硝化螺菌属(Nitrospira)的相对丰度(0.61%、0.17%、0.42%和0.045%);而在慢生根瘤菌属(Bradyrhizobium)、鞘脂单胞菌属(Sphingomonas)以及芽单胞菌属(Gemmatimonas)上HHZ较FHZ显著下降了0.29%、0.76%和0.15%;HHZ根际上调的微生物在土壤的营养循环和有效性转化上起到重要功能作用,其根际土壤微生物生态位宽度比FHZ高36.81%,反映了根际微生物对资源利用的差异,是微生物适应土壤胁迫环境的生物印迹。本研究认为植物早衰发生是根际微生物生态对策的结果,再生稻头季植株根际土壤微生物群落结构差异对其再生季具有显著的延效作用。因此,加强再生稻头季后期的根际调控,强化根际土壤微生物菌群的合理构建,促进根际正效应形成,是活化土壤营养环境,防止再生稻早衰发生,进一步提升再生季稻产量的关键。
Keyword ：
再生稻 再生稻 早衰 早衰 根际微生物 根际微生物 根际效应 根际效应 栽培调控 栽培调控
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| GB/T 7714 | 郭春林 , 林满红 , 陈婷 et al. 根际微生物响应再生稻衰老的演变特征及其延效机制 [J]. | 作物学报 , 2024 , 50 (08) : 2039-2052 . |
| MLA | 郭春林 et al. "根际微生物响应再生稻衰老的演变特征及其延效机制" . | 作物学报 50 . 08 (2024) : 2039-2052 . |
| APA | 郭春林 , 林满红 , 陈婷 , 陈鸿飞 , 林文芳 , 林文雄 . 根际微生物响应再生稻衰老的演变特征及其延效机制 . | 作物学报 , 2024 , 50 (08) , 2039-2052 . |
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Reducing greenhouse gas emissions while improving productivity is the core of sustainable agriculture development. In recent years, rice ratooning has developed rapidly in China and other Asian countries, becoming an effective measure to increase rice production and reduce greenhouse gas emissions in these regions. However, the lower yield of ratooning rice caused by the application of a single nitrogen fertilizer in the ratooning season has become one of the main reasons limiting the further development of rice ratooning. The combined application of nitrogen and phosphorus plays a crucial role in increasing crop yield and reducing greenhouse gas emissions. The effects of combined nitrogen and phosphorus application on ratooning rice remain unclear. Therefore, this paper aimed to investigate the effect of combined nitrogen and phosphorus application on ratooning rice. Two hybrid rice varieties, 'Luyou 1831' and 'Yongyou 1540', were used as experimental materials. A control treatment of nitrogen-only fertilization (187.50 kgha(-1) N) was set, and six treatments were established by reducing nitrogen fertilizer by 10% (N1) and 20% (N2), and applying three levels of phosphorus fertilizer: N1P1 (168.75 kgha(-1) N; 13.50 kgha(-1) P), N1P2 (168.75 kgha(-1) N; 27.00 kgha(-1) P), N1P3 (168.75 kgha(-1) N; 40.50 kgha(-1) P), N2P1 (150.00 kgha(-1) N; 13.50 kgha(-1) P), N2P2 (150.00 kgha(-1) N; 27.00 kgha(-1) P), and N2P3 (150.00 kgha(-1) N; 40.50 kgha(-1) P). The effects of reduced nitrogen and increased phosphorus treatments in ratooning rice on the yield, the greenhouse gas emissions, and the community structure of rhizosphere soil microbes were examined. The results showed that the yield of ratooning rice in different treatments followed the sequence N1P2 > N1P1 > N1P3 > N2P3 > N2P2 > N2P1 > N. Specifically, under the N1P2 treatment, the average two-year yields of 'Luyou 1831' and 'Yongyou 1540' reached 8520.55 kgha(-1) and 9184.90 kgha(-1), respectively, representing increases of 74.30% and 25.79% compared to the N treatment. Different nitrogen and phosphorus application combinations also reduced methane emissions during the ratooning season. Appropriately combined nitrogen and phosphorus application reduced the relative contribution of stochastic processes in microbial community assembly, broadened the niche breadth of microbial communities, enhanced the abundance of functional genes related to methane-oxidizing bacteria and soil ammonia-oxidizing bacteria in the rhizosphere, and decreased the abundance of functional genes related to methanogenic and denitrifying bacteria, thereby reducing greenhouse gas emissions in the ratooning season. The carbon footprint of ratooning rice for 'Luyou 1831' and 'Yongyou 1540' decreased by 25.82% and 38.99%, respectively, under the N1P2 treatment compared to the N treatment. This study offered a new fertilization pattern for the green sustainable development of rice ratooning.
Keyword ：
carbon footprint carbon footprint rhizosphere microorganisms rhizosphere microorganisms rice ratooning rice ratooning yield yield
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| GB/T 7714 | Yang, Yuncheng , Yao, Feifei , Sun, Yangbo et al. Appropriately Reduced Nitrogen and Increased Phosphorus in Ratooning Rice Increased the Yield and Reduced the Greenhouse Gas Emissions in Southeast China [J]. | PLANTS-BASEL , 2024 , 13 (3) . |
| MLA | Yang, Yuncheng et al. "Appropriately Reduced Nitrogen and Increased Phosphorus in Ratooning Rice Increased the Yield and Reduced the Greenhouse Gas Emissions in Southeast China" . | PLANTS-BASEL 13 . 3 (2024) . |
| APA | Yang, Yuncheng , Yao, Feifei , Sun, Yangbo , Yang, Zhipeng , Li, Rong , Bai, Ge et al. Appropriately Reduced Nitrogen and Increased Phosphorus in Ratooning Rice Increased the Yield and Reduced the Greenhouse Gas Emissions in Southeast China . | PLANTS-BASEL , 2024 , 13 (3) . |
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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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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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为探究再生稻生产中促芽肥施用量对头季稻不同节位腋芽萌发及生长发育的影响，以杂交水稻品种泸优1831和甬优1540为供试材料，设置4个不同促芽肥施用量处理（N0，不施氮；N1，纯N 75.00 kg/hm~2;N2，纯N84.40 kg/hm~2;N3，纯N 93.75 kg/hm~2），测定了不同促芽肥施用量处理下再生稻头季不同节位腋芽存活率、芽长、茎节非结构碳水化合物含量和全氮含量。结果表明，腋芽存活率和芽长与促芽肥施用量成正比，施用促芽肥可以显著提高再生稻的腋芽存活率，N3处理较N0处理腋芽存活率提高27.34%（甬优1540）～36.51%（泸优1831）。不同节位腋芽对于促芽肥响应不同，N3处理下泸优1831第2、第3、第4节位的腋芽存活率较N0处理分别提高74.36%、29.35%和22.33%，甬优1540则分别提高24.25%、22.33%和40.49%；相同促芽肥施用量下高节位腋芽存活率均高于低节位腋芽；腋芽存活率与腋芽可溶性糖含量呈极显著正相关关系，第3、第4节位的腋芽存活率与腋芽中淀粉含量呈负相关关系。综上所述，不同节位腋芽存活率与腋芽中的可溶性糖含量有关，其中维持第4节位腋芽存活所需促芽肥最多，当选择低留桩机械化收割时可以适当减少促芽肥的施用量。
Keyword ：
促芽肥 促芽肥 再生稻 再生稻 可溶性糖 可溶性糖 腋芽存活率 腋芽存活率
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| GB/T 7714 | 杨运城 , 曾春丽 , 姚飞飞 et al. 再生稻头季施用促芽肥对不同节位腋芽生长发育和碳氮含量的影响 [J]. | 中国稻米 , 2024 , 30 (03) : 32-39 . |
| MLA | 杨运城 et al. "再生稻头季施用促芽肥对不同节位腋芽生长发育和碳氮含量的影响" . | 中国稻米 30 . 03 (2024) : 32-39 . |
| APA | 杨运城 , 曾春丽 , 姚飞飞 , 孙彦波 , 杨子鹏 , 陈鸿飞 . 再生稻头季施用促芽肥对不同节位腋芽生长发育和碳氮含量的影响 . | 中国稻米 , 2024 , 30 (03) , 32-39 . |
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