Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status
Plant-growth-promoting bacteria can be used for sustainable forage grass production while increasing nutrition and biomass. Most of the soils under pasture in the tropics have a degradation level that impairs the forage yield potential, especially because of mismanagement and lack of fertilization....
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2020-03-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36211 |
| _version_ | 1797944586603069440 |
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| author | Reges Heinrichs Guilherme Constantino Meirelles Luiz Felipe de Melo Santos Maikon Vinicius da Silva Lira Allan de Marcos Lapaz Marco Antonio Nogueira Carolina dos Santos Batista Bonini Cecílio Viega Soares Filho Adônis Moreira |
| author_facet | Reges Heinrichs Guilherme Constantino Meirelles Luiz Felipe de Melo Santos Maikon Vinicius da Silva Lira Allan de Marcos Lapaz Marco Antonio Nogueira Carolina dos Santos Batista Bonini Cecílio Viega Soares Filho Adônis Moreira |
| author_sort | Reges Heinrichs |
| collection | DOAJ |
| description | Plant-growth-promoting bacteria can be used for sustainable forage grass production while increasing nutrition and biomass. Most of the soils under pasture in the tropics have a degradation level that impairs the forage yield potential, especially because of mismanagement and lack of fertilization. The objective of this work was to evaluate the seed inoculation effects of Azospirillum brasilense on the shoot and root dry mass production and nutritional status of Urochloa brizantha cv. ‘Marandu’ under field conditions for two years in a low-fertility soil. The experimental design was a randomized block design with four replications, arranged in a 2 × 3 factorial scheme, comprised of two doses of A. brasilense (0 and 200 mL ha-1) in combination with three doses of N (0, 25 and 50 kg ha-1). Seed inoculation increased shoot dry mass by 13% in the first year and by 6% in the second year, whereas N application increased dry mass by 27% and 35% in the first and second year, respectively. The concentration of nutrients in the shoots did not change due to the inoculation, but N fertilization affected P, Mg, Fe, Mn, and Zn in the first year and N, P and Cu in the second year. Root dry mass increased 36% with fertilization of 25 kg N ha-1 plus inoculation in relation to the other treatments in the first year. In the second year, the inoculation of A. brasilense increased by 17%. Therefore, seed inoculation of Urochloa brizantha cv. ‘Marandu’ with Azospirillum brasilense increased root and shoot dry mass production in some cuts without influencing tiller numbers. Nitrogen fertilization altered N, Mg, P, Fe, Mn, Zn, and Cu concentrations in shoot dry mass. |
| first_indexed | 2024-04-10T20:42:04Z |
| format | Article |
| id | doaj.art-e547777b8ace4b76a890d0440f59076d |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-04-10T20:42:04Z |
| publishDate | 2020-03-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-e547777b8ace4b76a890d0440f59076d2023-01-24T19:41:04ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592020-03-0141210.5433/1679-0359.2020v41n2p465Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional statusReges Heinrichs0Guilherme Constantino Meirelles1Luiz Felipe de Melo Santos2Maikon Vinicius da Silva Lira3Allan de Marcos Lapaz4Marco Antonio Nogueira5Carolina dos Santos Batista Bonini6Cecílio Viega Soares Filho7Adônis Moreira8Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade do Oeste PaulistaUniversidade Estadual PaulistaEmpresa Brasileira de Pesquisa AgropecuáriaUniversidade Estadual PaulistaUniversidade Estadual PaulistaEmpresa Brasileira de Pesquisa AgropecuáriaPlant-growth-promoting bacteria can be used for sustainable forage grass production while increasing nutrition and biomass. Most of the soils under pasture in the tropics have a degradation level that impairs the forage yield potential, especially because of mismanagement and lack of fertilization. The objective of this work was to evaluate the seed inoculation effects of Azospirillum brasilense on the shoot and root dry mass production and nutritional status of Urochloa brizantha cv. ‘Marandu’ under field conditions for two years in a low-fertility soil. The experimental design was a randomized block design with four replications, arranged in a 2 × 3 factorial scheme, comprised of two doses of A. brasilense (0 and 200 mL ha-1) in combination with three doses of N (0, 25 and 50 kg ha-1). Seed inoculation increased shoot dry mass by 13% in the first year and by 6% in the second year, whereas N application increased dry mass by 27% and 35% in the first and second year, respectively. The concentration of nutrients in the shoots did not change due to the inoculation, but N fertilization affected P, Mg, Fe, Mn, and Zn in the first year and N, P and Cu in the second year. Root dry mass increased 36% with fertilization of 25 kg N ha-1 plus inoculation in relation to the other treatments in the first year. In the second year, the inoculation of A. brasilense increased by 17%. Therefore, seed inoculation of Urochloa brizantha cv. ‘Marandu’ with Azospirillum brasilense increased root and shoot dry mass production in some cuts without influencing tiller numbers. Nitrogen fertilization altered N, Mg, P, Fe, Mn, Zn, and Cu concentrations in shoot dry mass.https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36211Diazotrophic bacteriaNitrogenGrowth promotingPastureUrochloa brizantha. |
| spellingShingle | Reges Heinrichs Guilherme Constantino Meirelles Luiz Felipe de Melo Santos Maikon Vinicius da Silva Lira Allan de Marcos Lapaz Marco Antonio Nogueira Carolina dos Santos Batista Bonini Cecílio Viega Soares Filho Adônis Moreira Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status Semina: Ciências Agrárias Diazotrophic bacteria Nitrogen Growth promoting Pasture Urochloa brizantha. |
| title | Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status |
| title_full | Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status |
| title_fullStr | Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status |
| title_full_unstemmed | Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status |
| title_short | Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status |
| title_sort | azospirillum inoculation of marandu palisade grass seeds effects on forage production and nutritional status |
| topic | Diazotrophic bacteria Nitrogen Growth promoting Pasture Urochloa brizantha. |
| url | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36211 |
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