Ammonium and nitrate ratios in the cultivation of tobacco plants
Tobacco (Nicotiana tabacum L.) is a plant of the Solanaceae family and native to the Americas. Brazil is one of the largest tobacco producers and exporters worldwide, and this crop guarantees the income of many small rural producers. Tobacco is very demanding of nitrogen, and adequate levels of thi...
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Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais
2025-02-01
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| Series: | Revista Agrogeoambiental |
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| Online Access: | https://agrogeoambiental.ifsuldeminas.edu.br/index.php/Agrogeoambiental/article/view/1928 |
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| _version_ | 1825197090361311232 |
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| author | Victor Gabriel Souza de Almeida Girlene Santos de Souza Gildeon Santos Brito Alfredo Teles de Jesus Neto Cristian Martins de Souza Anacleto Ranulfo dos Santos |
| author_facet | Victor Gabriel Souza de Almeida Girlene Santos de Souza Gildeon Santos Brito Alfredo Teles de Jesus Neto Cristian Martins de Souza Anacleto Ranulfo dos Santos |
| author_sort | Victor Gabriel Souza de Almeida |
| collection | DOAJ |
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Tobacco (Nicotiana tabacum L.) is a plant of the Solanaceae family and native to the Americas. Brazil is one of the largest tobacco producers and exporters worldwide, and this crop guarantees the income of many small rural producers. Tobacco is very demanding of nitrogen, and adequate levels of this nutrient guarantee longevity of the production chain, maximizing productivity and ensuring quality. Therefore, this study aimed to analyze the effect of ammoniacal (NH4+) and nitric (NO3-) nitrogen in the growth and development of tobacco. A randomized design was applied, using five ammonium and nitrate ratios (NH4+:NO3-): 100:0; 75:25; 50:50; 25:75 and 0:100, with five replications. After 60 days of weekly application of the solution, physiological and growth parameters were assessed: chlorophyll contents a and b; number of leaves; plant height; stem diameter; root, stem, leaf, shoot and total dry mass. The 25:75 ratio (NH4+:NO3-) resulted in an increase of height, number of leaves, stem diameter and leaf dry mass, the latter being the variable of greatest commercial relevance for tobacco cultivation. The highest chlorophyll contents were found under the 100:00 ratio (NH4+:NO3-) supplementation; however, this treatment had the lowest expressions in all other variables and is not recommended for tobacco cultivation.
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| format | Article |
| id | doaj-art-5a6502105db1466790f97f4400fa6fdf |
| institution | Kabale University |
| issn | 1984-428X 2316-1817 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais |
| record_format | Article |
| series | Revista Agrogeoambiental |
| spelling | doaj-art-5a6502105db1466790f97f4400fa6fdf2025-02-11T19:56:27ZengInstituto Federal de Educação, Ciência e Tecnologia do Sul de Minas GeraisRevista Agrogeoambiental1984-428X2316-18172025-02-0117unico10.18406/2316-1817v17nunico20251928Ammonium and nitrate ratios in the cultivation of tobacco plantsVictor Gabriel Souza de Almeida0Girlene Santos de Souza1Gildeon Santos Brito2Alfredo Teles de Jesus Neto3Cristian Martins de Souza4Anacleto Ranulfo dos Santos5Universidade Federal do Recôncavo da BahiaUniversidade Federal do Recôncavo da BahiaUniversidade Estadual Paulista - UNESP - JaboticabalUniversidade Federal do Recôncavo da BahiaUniversidade Federal do Recôncavo da BahiaUniversidade Federal do Recôncavo da Bahia Tobacco (Nicotiana tabacum L.) is a plant of the Solanaceae family and native to the Americas. Brazil is one of the largest tobacco producers and exporters worldwide, and this crop guarantees the income of many small rural producers. Tobacco is very demanding of nitrogen, and adequate levels of this nutrient guarantee longevity of the production chain, maximizing productivity and ensuring quality. Therefore, this study aimed to analyze the effect of ammoniacal (NH4+) and nitric (NO3-) nitrogen in the growth and development of tobacco. A randomized design was applied, using five ammonium and nitrate ratios (NH4+:NO3-): 100:0; 75:25; 50:50; 25:75 and 0:100, with five replications. After 60 days of weekly application of the solution, physiological and growth parameters were assessed: chlorophyll contents a and b; number of leaves; plant height; stem diameter; root, stem, leaf, shoot and total dry mass. The 25:75 ratio (NH4+:NO3-) resulted in an increase of height, number of leaves, stem diameter and leaf dry mass, the latter being the variable of greatest commercial relevance for tobacco cultivation. The highest chlorophyll contents were found under the 100:00 ratio (NH4+:NO3-) supplementation; however, this treatment had the lowest expressions in all other variables and is not recommended for tobacco cultivation. https://agrogeoambiental.ifsuldeminas.edu.br/index.php/Agrogeoambiental/article/view/1928Growth. Phytomass. Ionic interaction. Nicotiana tabacum L. Nitrogen. |
| spellingShingle | Victor Gabriel Souza de Almeida Girlene Santos de Souza Gildeon Santos Brito Alfredo Teles de Jesus Neto Cristian Martins de Souza Anacleto Ranulfo dos Santos Ammonium and nitrate ratios in the cultivation of tobacco plants Revista Agrogeoambiental Growth. Phytomass. Ionic interaction. Nicotiana tabacum L. Nitrogen. |
| title | Ammonium and nitrate ratios in the cultivation of tobacco plants |
| title_full | Ammonium and nitrate ratios in the cultivation of tobacco plants |
| title_fullStr | Ammonium and nitrate ratios in the cultivation of tobacco plants |
| title_full_unstemmed | Ammonium and nitrate ratios in the cultivation of tobacco plants |
| title_short | Ammonium and nitrate ratios in the cultivation of tobacco plants |
| title_sort | ammonium and nitrate ratios in the cultivation of tobacco plants |
| topic | Growth. Phytomass. Ionic interaction. Nicotiana tabacum L. Nitrogen. |
| url | https://agrogeoambiental.ifsuldeminas.edu.br/index.php/Agrogeoambiental/article/view/1928 |
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