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Galindo FS, Pagliari PH, da Silva EC, de Lima BH, Fernandes GC, Thiengo CC, Bernardes JVS, Jalal A, Oliveira CES, de Sousa Vilela L, Furlani Junior E, Nogueira TAR, do Nascimento V, Teixeira Filho MCM, Lavres J. Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions. BMC Plant Biol 2024; 24:268. [PMID: 38605320 PMCID: PMC11008049 DOI: 10.1186/s12870-024-04971-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 04/01/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Considering the challenges posed by nitrogen (N) pollution and its impact on food security and sustainability, it is crucial to develop management techniques that optimize N fertilization in croplands. Our research intended to explore the potential benefits of co-inoculation with Azospirillum brasilense and Bacillus subtilis combined with N application rates on corn plants. The study focused on evaluating corn photosynthesis-related parameters, oxidative stress assay, and physiological nutrient use parameters. Focus was placed on the eventual improved capacity of plants to recover N from applied fertilizers (AFR) and enhance N use efficiency (NUE) during photosynthesis. The two-year field trial involved four seed inoculation treatments (control, A. brasilense, B. subtilis, and A. brasilense + B. subtilis) and five N application rates (0 to 240 kg N ha-1, applied as side-dress). RESULTS Our results suggested that the combined effects of microbial consortia and adequate N-application rates played a crucial role in N-recovery; enhanced NUE; increased N accumulation, leaf chlorophyll index (LCI), and shoot and root growth; consequently improving corn grain yield. The integration of inoculation and adequate N rates upregulated CO2 uptake and assimilation, transpiration, and water use efficiency, while downregulated oxidative stress. CONCLUSIONS The results indicated that the optimum N application rate could be reduced from 240 to 175 kg N ha-1 while increasing corn yield by 5.2%. Furthermore, our findings suggest that replacing 240 by 175 kg N ha-1 of N fertilizer (-65 kg N ha-1) with microbial consortia would reduce CO2 emission by 682.5 kg CO2 -e ha-1. Excessive N application, mainly with the presence of beneficial bacteria, can disrupt N-balance in the plant, alter soil and bacteria levels, and ultimately affect plant growth and yield. Hence, highlighting the importance of adequate N management to maximize the benefits of inoculation in agriculture and to counteract N loss from agricultural systems intensification.
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Affiliation(s)
- Fernando Shintate Galindo
- College of Agricultural and Technological Sciences, Department of Crop Production, São Paulo State University, Dracena, 17900-000, Brazil.
| | - Paulo Humberto Pagliari
- Southwest Research and Outreach Center, Department of Soil, Water, and Climate, University of Minnesota, Lamberton, MN, 56152, USA
| | - Edson Cabral da Silva
- Department of Plant Health, Rural Engineering, and Soils, São Paulo State University, Ilha Solteira, 15345-000, Brazil
| | - Bruno Horschut de Lima
- Department of Plant Health, Rural Engineering, and Soils, São Paulo State University, Ilha Solteira, 15345-000, Brazil
| | - Guilherme Carlos Fernandes
- Department of Plant Health, Rural Engineering, and Soils, São Paulo State University, Ilha Solteira, 15345-000, Brazil
| | - Cassio Carlette Thiengo
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, 13416-000, Brazil
| | | | - Arshad Jalal
- King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Carlos Eduardo Silva Oliveira
- Department of Plant Health, Rural Engineering, and Soils, São Paulo State University, Ilha Solteira, 15345-000, Brazil
| | - Lucila de Sousa Vilela
- College of Agricultural and Technological Sciences, Department of Crop Production, São Paulo State University, Dracena, 17900-000, Brazil
| | - Enes Furlani Junior
- Department of Plant Health, Rural Engineering, and Soils, São Paulo State University, Ilha Solteira, 15345-000, Brazil
| | | | - Vagner do Nascimento
- College of Agricultural and Technological Sciences, Department of Crop Production, São Paulo State University, Dracena, 17900-000, Brazil
| | | | - José Lavres
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, 13416-000, Brazil
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Sheoran P, Kamboj P, Kumar A, Kumar A, Singh RK, Barman A, Prajapat K, Mandal S, Yousuf DJ, Narjary B, Kumar S. Matching N supply for yield maximization in salt-affected wheat agri-food systems: On-farm participatory assessment and validation. Sci Total Environ 2023; 875:162573. [PMID: 36871711 DOI: 10.1016/j.scitotenv.2023.162573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/09/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Driven by the UN-SDGs of achieving food security and agricultural sustainability, it remains more challenging in degraded ecosystems to simultaneously improve the crop performance without creating unintended favour for excessive fertilization and associated environmental consequences. We assessed the N-use pattern of 105 wheat-growers in sodicity affected Ghaghar Basin of Haryana, India, and then experimented upon to optimize and identify indicators of efficient N use in contrasting wheat cultivars for sustainable production. The survey results revealed that majority of farmers (88%) have increased their reliance on N nutrition (∼18 % extra N), and even extended their duration of N scheduling (12-15 days) for better plant adaptation and yield insurance in sodicity stressed wheat; albeit to a greater extent in moderately sodic soils applying 192 kg N ha-1 in 62 days. The participatory trials validated the farmers' perception of using more than the recommended N in sodic lands. This could realize the transformative improvements in plant physiological [higher photosynthetic rate (Pn; 5 %) and transpiration rate (E; 9 %)] and yield [more tillers (ET; 3 %), grains spike-1 (GS; 6 %) and healthier grains (TGW; 3 %)] traits culminating in ∼20 % higher yield at 200 kg N ha-1 (N200). However, further incremental N application had no apparent yield advantage or monetary benefits. At N200, every additional kilogram of N captured by the crop beyond the recommended N improved grain yields by 36.1 kg ha-1 in KRL 210 and 33.7 kg ha-1 in HD 2967. Further, the varietal differences for N requirements, with 173 kg ha-1 in KRL 210 and 188 kg ha-1 in HD 2967, warrants the need of applying balanced fertilizer dose and advocate revision of existing N recommendations to cope up the sodicity induced agricultural vulnerability. Principal Component Analysis (PCA) and correlation matrix showed N uptake efficiency (NUpE) and total N uptake (TNUP) as the highly weighted variables illustrating strong positive association with grain yield, and potentially deciding the fate of proper N utilization in sodicity stressed wheat. Key insights suggested that combining participatory research with farmers' knowledge and local perspective could be decisive in better integration of technologies, and serving to adapt the real-time soil sodicity stress and sustaining wheat yields with economized farm profits.
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Affiliation(s)
| | - Paras Kamboj
- ICAR-Central Soil Salinity Research Institute, Karnal, India
| | - Arvind Kumar
- ICAR-Central Soil Salinity Research Institute, Karnal, India.
| | - Ashwani Kumar
- ICAR-Central Soil Salinity Research Institute, Karnal, India.
| | - Ranjay K Singh
- ICAR-Central Soil Salinity Research Institute, Karnal, India.
| | - Arijit Barman
- ICAR-Central Soil Salinity Research Institute, Karnal, India; ICAR-National Bureau of Soil Survey & Land Use Planning, Regional Station, Jorhat, Assam, India.
| | | | - Subhasis Mandal
- ICAR-Central Soil Salinity Research Institute, Karnal, India
| | | | - Bhaskar Narjary
- ICAR-Central Soil Salinity Research Institute, Karnal, India.
| | - Satyendra Kumar
- ICAR-Central Soil Salinity Research Institute, Karnal, India.
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Gaspareto RN, Jalal A, Ito WCN, Oliveira CEDS, Garcia CMDP, Boleta EHM, Rosa PAL, Galindo FS, Buzetti S, Ghaley BB, Filho MCMT. Inoculation with Plant Growth-Promoting Bacteria and Nitrogen Doses Improves Wheat Productivity and Nitrogen Use Efficiency. Microorganisms 2023; 11:microorganisms11041046. [PMID: 37110469 PMCID: PMC10142644 DOI: 10.3390/microorganisms11041046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Wheat is one of the staple foods of the global population due to its adaptability to a wide range of environments. Nitrogen is one of the crucial limiting factors in wheat production and is considered a challenge to food security. Therefore, sustainable agricultural technologies such as seed inoculation with plant growth-promoting bacteria (PGPBs) can be adopted to promote biological nitrogen fixation (BNF) for higher crop productivity. In this context, the objective of the current study was to evaluate the effects of nitrogen fertilization and seed inoculations with Azospirillum brasilense, Bacillus subtilis and A. brasilense + B. subtilis on agronomic and yield attributes, grain yield, grain N accumulation, N use efficiency and applied N recovery in Brazilian Cerrado, which consists of gramineous woody savanna. The experiment was carried out in two cropping seasons in Rhodic Haplustox soil under a no-tillage system. The experiment was designed in a randomized complete block in a 4 × 5 factorial scheme, with four replications. The treatments consisted of four seed inoculations (control-without inoculation, inoculation with A. brasilense, B. subtilis and A. brasilense + B. subtilis) under five N doses (0, 40, 80, 120 and 160 kg ha-1, applied from urea) at the wheat tillering stage. Seed co-inoculation with A. brasilense + B. subtilis increased grain N accumulation, number of spikes m-1, grains spike-1 and grain yield of wheat in an irrigated no-tillage system of tropical savannah, regardless of the applied N doses. Nitrogen fertilization at a dose of 80 kg ha-1 significantly increased grain N accumulation and number of grains spikes-1 and nitrogen use efficiency. Recovery of applied N was increased with inoculation of B. subtilis and co-inoculation of A. brasilense + B. subtilis at increasing N doses. Therefore, N fertilization can be reduced by the inclusion of co-inoculation with A. brasilense + B. subtilis in the cultivation of winter wheat under a no-tillage system of Brazilian Cerrado.
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Affiliation(s)
- Rafaela Neris Gaspareto
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - William Cesar Nishimoto Ito
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Cássia Maria de Paula Garcia
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | | | - Poliana Aparecida Leonel Rosa
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Fernando Shintate Galindo
- Department of Crop Production, College of Agricultural and Technology Sciences, São Paulo State University (UNESP), Dracena 17900-000, SP, Brazil
| | - Salatiér Buzetti
- Department of Plant Protection, Rural Engineering and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15385-000, SP, Brazil
| | - Bhim Bahadur Ghaley
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, 2630 Taastrup, Denmark
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Pelloso MF, Vidigal Filho PS, Scapim CA, Tiene Ortiz AH, Numoto AY, Miranda Freitas IR. Agronomic performance and quality of baby corn in response to the inoculation of seeds with Azospirillum brasilense and nitrogen fertilization in the summer harvest. Heliyon 2023; 9:e14618. [PMID: 37035362 PMCID: PMC10073748 DOI: 10.1016/j.heliyon.2023.e14618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
The association with Azospirillum brasilense promotes better growth and development in corn plants due to biological N fixation, the capacity to help in the synthesis of phytohormones and to improve the use of nutrients by crop plants. However, there aren't specific recommendations for the use of inoculation in baby corn crop. Thus, this study aimed to evaluate the effects of seed inoculation with A. brasilense, associated with nitrogen fertilization management, on the agronomic performance and chemical quality of baby corn grown in three summer growing seasons (2014/2015; 2015/2016 and 2016/2017). The evaluated treatments consisted of combination of five levels of seed inoculation (0.0, 50, 100, 150 and 200 mL 60,000 seeds-1) based on Azospirillum brasilense, two levels of nitrogen fertilization at sowing time (0.0 and 30.0 kg of N ha-1) and two levels of nitrogen in topdressing (0.0 and 110.0 kg of N ha-1), applied at the V4 stage of the popcorn hybrid IAC 125. The characteristics evaluated were: leaf area index (LAI), leaf nitrogen content (LNC), total husked spikelets yield (HSY) and commercial spikelets yield (CSY), and the chemical characteristics of the commercial spikelets: crude protein content (CPC), starch content (STC) and total sugar content (TSC). The inoculation, when combined with nitrogen fertilization, provided positive responses for LAI and provided an average increment of 6 kg ha-1 to CSY for every 10 mL 60,000 seeds-1 of inoculant added to the seeds. The LNC, CPC, STC and TSC weren't affected by seed inoculation. Nitrogen fertilization provided increments for all characteristics evaluated, except for TSC, which was negatively affected by nitrogen topdressing. The baby corn crop responded positively to seed inoculation with Azospirillum brasilense, combined with Nitrogen fertilization.
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Galindo FS, Rodrigues WL, Fernandes GC, Boleta EHM, Jalal A, Rosa PAL, Buzetti S, Lavres J, Teixeira Filho MCM. Enhancing agronomic efficiency and maize grain yield with Azospirillum brasilense inoculation under Brazilian savannah conditions. European Journal of Agronomy 2022; 134:126471. [DOI: 10.1016/j.eja.2022.126471] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Galindo FS, Pagliari PH, Fernandes GC, Rodrigues WL, Boleta EHM, Jalal A, Céu EGO, Lima BHD, Lavres J, Teixeira Filho MCM. Improving Sustainable Field-Grown Wheat Production With Azospirillum brasilense Under Tropical Conditions: A Potential Tool for Improving Nitrogen Management. Front Environ Sci 2022. [DOI: 10.3389/fenvs.2022.821628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Sustainable intensification of cropping systems requires to increase productivity and nutrients use efficiency while reducing negative impacts of agricultural management practices on ecosystem and environment. Plant growth-promoting rhizobacteria (PGPR) inoculations are considered one of the most promising and safe strategy to alleviate environmental alterations in context of climatic extremes to improve plant nutrition while reducing dependency of nitrogen (N) fertilizer application. This study investigated the interactive effects of N levels and inoculation with A. brasilense on plant biomass, grain yield, agronomic efficiency (AE) of applied N, apparent N-fertilizer recovery (AFR) and N content in plant targeting economic feasibility of wheat production system. The field trial tested 4 N application levels applied in side-dressing (control, low, average and high; named 0, 50, 100 and 200 kg N ha−1) and two inoculations (without and with A. brasilense seed inoculation). The results exhibited that inoculation with A. brasilense enhanced AE, AFR and N uptake in wheat plants with increased root and shoot N accumulation and grain N accumulation under average and high N application levels. In addition, inoculation increased root and shoot biomass, leading to a yield increase of 10.3% compared with non-inoculated plants. Wheat plant inoculation associated with application of the average N level provided the greatest profitability. Furthermore, results showed that reducing N fertilization from 100 to 50 kg N ha−1 along A. brasilense inoculation led to an increase in operating profit of 10.5%. In view of low economic cost, ease of application, and high probability of a positive response by wheat crops, even associated with different N application levels, the inoculation with A. brasilense prone to be a key sustainable management practice to improve wheat production under tropical conditions. This practice has the potential to increase wheat grain yield, N use and uptake, and overall farm profitability.
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Galindo FS, Pagliari PH, Rodrigues WL, Fernandes GC, Boleta EHM, Santini JMK, Jalal A, Buzetti S, Lavres J, Teixeira Filho MCM. Silicon Amendment Enhances Agronomic Efficiency of Nitrogen Fertilization in Maize and Wheat Crops under Tropical Conditions. Plants (Basel) 2021; 10:plants10071329. [PMID: 34209953 PMCID: PMC8309197 DOI: 10.3390/plants10071329] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 02/05/2023]
Abstract
Sustainable management strategies are needed to improve agronomic efficiency and cereal yield production under harsh abiotic climatic conditions such as in tropical Savannah. Under these environments, field-grown crops are usually exposed to drought and high temperature conditions. Silicon (Si) application could be a useful and sustainable strategy to enhance agronomic N use efficiency, leading to better cereal development. This study was developed to explore the effect of Si application as a soil amendment source (Ca and Mg silicate) associated with N levels applied in a side-dressing (control, low, medium and high N levels) on maize and wheat development, N uptake, agronomic efficiency and grain yield. The field experiments were carried out during four cropping seasons, using two soil amendment sources (Ca and Mg silicate and dolomitic limestone) and four N levels (0, 50, 100 and 200 kg N ha−1). The following evaluations were performed in maize and wheat crops: the shoots and roots biomass, total N, N-NO3−, N-NH4+ and Si accumulation in the shoots, roots and grain tissue, leaf chlorophyll index, grain yield and agronomic efficiency. The silicon amendment application enhanced leaf chlorophyll index, agronomic efficiency and N-uptake in maize and wheat plants, benefiting shoots and roots development and leading to a higher grain yield (an increase of 5.2 and 7.6%, respectively). It would be possible to reduce N fertilization in maize from 185–180 to 100 kg N ha−1 while maintaining similar grain yield with Si application. Additionally, Si application would reduce N fertilization in wheat from 195–200 to 100 kg N ha−1. Silicon application could be a key technology for improving plant-soil N-management, especially in Si accumulator crops, leading to a more sustainable cereal production under tropical conditions.
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Affiliation(s)
- Fernando Shintate Galindo
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba 13416-000, Brazil
- Correspondence:
| | - Paulo Humberto Pagliari
- Department of Soil, Water, and Climate, Southwest Research and Outreach Center (SWROC), University of Minnesota (UMN), Lamberton, MN 56152, USA;
| | - Willian Lima Rodrigues
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - Guilherme Carlos Fernandes
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - Eduardo Henrique Marcandalli Boleta
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - José Mateus Kondo Santini
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - Arshad Jalal
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - Salatiér Buzetti
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - José Lavres
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Health, Rural Engineering, and Soils (DEFERS), São Paulo State University (UNESP), Ilha Solteira 15345-000, Brazil; (W.L.R.); (G.C.F.); (E.H.M.B.); (J.M.K.S.); (A.J.); (S.B.); (J.L.); (M.C.M.T.F.)
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