Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system
The objective was to evaluate nutrient absorption in Marandu grass influenced by levels of eucalyptus shading in a silvopastoral system (SSP) and N doses, during two years of cultivation. The experimental design adopted was randomized blocks, with four replications. The experiment was conducted in...
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Universidade Estadual de Londrina
2024-12-01
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| Series: | Semina: Ciências Agrárias |
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| Online Access: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/50093 |
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| author | Josiane Aparecida de Souza Barboza Márcia Vitória Santos Francisco Cláudio Lopes de Freitas Paulo Roberto Cecon Rodinei Facco Pegoraro Arnon Henrique Campos Anésio Herminia Emilia Prieto Martinez Mariana Almeida Dumont |
| author_facet | Josiane Aparecida de Souza Barboza Márcia Vitória Santos Francisco Cláudio Lopes de Freitas Paulo Roberto Cecon Rodinei Facco Pegoraro Arnon Henrique Campos Anésio Herminia Emilia Prieto Martinez Mariana Almeida Dumont |
| author_sort | Josiane Aparecida de Souza Barboza |
| collection | DOAJ |
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The objective was to evaluate nutrient absorption in Marandu grass influenced by levels of eucalyptus shading in a silvopastoral system (SSP) and N doses, during two years of cultivation. The experimental design adopted was randomized blocks, with four replications. The experiment was conducted in a 3 x 7 factorial arrangement, corresponding to three nitrogen doses (0, 100, and 200 kg ha-1 year-1 in the form of ammonium sulfate), six shading intensities of Marandu grass in SSP (SSP 40-45, SSP 35-40, SSP 30-35, SSP 25-30, SSP 20-25, SSP 15-20%), and one treatment with Marandu grass cultivated in full sun (monoculture). Chemical analyzes were performed to obtain macro and micronutrient concentrations in the Marandu grass material. The adoption of the integrated SSP system and N doses showed interaction (P <0.05) for phosphorus (P), potassium (K), and sulfur (S) levels in Marandu grass. Shading does not affect the dry mass production of Marandu grass. The increase in N doses and shading in the SSP favor the levels of phosphorus, potassium, sulfur, nitrogen, calcium, magnesium, iron, zinc, copper, manganese and boron in Marandu grass, compared to full sun. The presence of 40-45% shade provides the highest levels, demonstrating greater benefits for forage quality in SSPs compared to monoculture pastures.
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| format | Article |
| id | doaj-art-11cc056e2e99428686f518938b92928c |
| institution | Kabale University |
| issn | 1676-546X 1679-0359 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj-art-11cc056e2e99428686f518938b92928c2024-12-13T06:47:05ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592024-12-0146110.5433/1679-0359.2025v46n1p37Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral systemJosiane Aparecida de Souza Barboza0https://orcid.org/0000-0003-1734-1066Márcia Vitória Santos1Francisco Cláudio Lopes de Freitas2Paulo Roberto Cecon3https://orcid.org/0000-0001-8213-0199Rodinei Facco Pegoraro4https://orcid.org/0000-0002-8692-9296Arnon Henrique Campos Anésio5Herminia Emilia Prieto Martinez6https://orcid.org/0000-0002-2184-374XMariana Almeida Dumont7https://orcid.org/0000-0001-6809-8161Universidade Federal dos Vales do Jequitinhonha e MucuriUniversidade Federal dos Vales do Jequitinhonha e MucuriUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de Minas GeraisInstituto Federal de Educação, Ciência e Tecnologia de Minas GeraisUniversidade Federal de ViçosaUniversidade Federal dos Vales do Jequitinhonha e Mucuri The objective was to evaluate nutrient absorption in Marandu grass influenced by levels of eucalyptus shading in a silvopastoral system (SSP) and N doses, during two years of cultivation. The experimental design adopted was randomized blocks, with four replications. The experiment was conducted in a 3 x 7 factorial arrangement, corresponding to three nitrogen doses (0, 100, and 200 kg ha-1 year-1 in the form of ammonium sulfate), six shading intensities of Marandu grass in SSP (SSP 40-45, SSP 35-40, SSP 30-35, SSP 25-30, SSP 20-25, SSP 15-20%), and one treatment with Marandu grass cultivated in full sun (monoculture). Chemical analyzes were performed to obtain macro and micronutrient concentrations in the Marandu grass material. The adoption of the integrated SSP system and N doses showed interaction (P <0.05) for phosphorus (P), potassium (K), and sulfur (S) levels in Marandu grass. Shading does not affect the dry mass production of Marandu grass. The increase in N doses and shading in the SSP favor the levels of phosphorus, potassium, sulfur, nitrogen, calcium, magnesium, iron, zinc, copper, manganese and boron in Marandu grass, compared to full sun. The presence of 40-45% shade provides the highest levels, demonstrating greater benefits for forage quality in SSPs compared to monoculture pastures. https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/50093Tropical forageLivestock-forest integrationAgroforestry systemsUrochloa brizantha. |
| spellingShingle | Josiane Aparecida de Souza Barboza Márcia Vitória Santos Francisco Cláudio Lopes de Freitas Paulo Roberto Cecon Rodinei Facco Pegoraro Arnon Henrique Campos Anésio Herminia Emilia Prieto Martinez Mariana Almeida Dumont Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system Semina: Ciências Agrárias Tropical forage Livestock-forest integration Agroforestry systems Urochloa brizantha. |
| title | Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| title_full | Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| title_fullStr | Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| title_full_unstemmed | Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| title_short | Nutrient absorption by Marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| title_sort | nutrient absorption by marandu grass subjected to shading levels and nitrogen doses in a silvopastoral system |
| topic | Tropical forage Livestock-forest integration Agroforestry systems Urochloa brizantha. |
| url | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/50093 |
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