Effect of nitrogen and lime on Massai grass subjected to intensive cutting

Detalhes bibliográficos
Autor(a) principal: Cardoso, Sandro
Data de Publicação: 2016
Outros Autores: Volpe, Edimilson, Macedo, Manuel Claudio Motta
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/38132
Resumo: Soil acidity and lack of nitrogen fertilization limit the yield of forage grasses. This study aimed at evaluating the effects of lime (0 kg ha-1; 2,000 kg ha-1; 4,000 kg ha-1; and 8,000 kg ha-1) and nitrogen (0 kg ha-1, 20 kg ha-1, 40 kg ha-1, 80 kg ha-1 and 160 kg ha-1) doses on forage accumulation, soil chemical properties and macronutrient concentrations in leaf blades of Massai grass (Panicum maximum cv. Massai). A randomized blocks design in a 4 x 5 factorial scheme, with four replications, was used. Lime and nitrogen doses positively affected the accumulation of green dry mass in the Massai grass as well as the base saturation in the soil. The maximum yield was obtained at nitrogen doses close to 587 kg ha-1 year-1 for nitrogen and 5,796 kg ha-1 for lime, which produced the greatest accumulation of green dry mass (15,267 kg ha-1 year-1) in the first year of assessment. The demand for lime increased from the first to the second year. Lime increased the base saturation, whereas nitrogen reduced it. The nitrogen applied to the soil raised the nitrogen, magnesium and calcium contents (g kg-1) in the leaf blades of Massai grass. Thus, Massai grass reacted positively to nitrogen and lime doses, with significant effects on the accumulation of green dry mass and soil characteristics assessed.
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spelling Effect of nitrogen and lime on Massai grass subjected to intensive cuttingEfeito de nitrogênio e calcário em capim-massai sob cortes intensivosPanicum maximum cv. Massainitrogen fertilizationliming.Panicum maximum cv. Massaiadubação nitrogenadacalagem.Soil acidity and lack of nitrogen fertilization limit the yield of forage grasses. This study aimed at evaluating the effects of lime (0 kg ha-1; 2,000 kg ha-1; 4,000 kg ha-1; and 8,000 kg ha-1) and nitrogen (0 kg ha-1, 20 kg ha-1, 40 kg ha-1, 80 kg ha-1 and 160 kg ha-1) doses on forage accumulation, soil chemical properties and macronutrient concentrations in leaf blades of Massai grass (Panicum maximum cv. Massai). A randomized blocks design in a 4 x 5 factorial scheme, with four replications, was used. Lime and nitrogen doses positively affected the accumulation of green dry mass in the Massai grass as well as the base saturation in the soil. The maximum yield was obtained at nitrogen doses close to 587 kg ha-1 year-1 for nitrogen and 5,796 kg ha-1 for lime, which produced the greatest accumulation of green dry mass (15,267 kg ha-1 year-1) in the first year of assessment. The demand for lime increased from the first to the second year. Lime increased the base saturation, whereas nitrogen reduced it. The nitrogen applied to the soil raised the nitrogen, magnesium and calcium contents (g kg-1) in the leaf blades of Massai grass. Thus, Massai grass reacted positively to nitrogen and lime doses, with significant effects on the accumulation of green dry mass and soil characteristics assessed.A acidez do solo e a ausência de adubação nitrogenada limitam a produtividade de gramíneas forrageiras. Objetivou-se avaliar os efeitos de doses de calcário (0 kg ha-1, 2.000 kg ha-1, 4.000 kg ha-1 e 8.000 kg ha-1) e nitrogênio (0 kg ha-1, 20 kg ha-1, 40 kg ha-1, 80 kg ha-1 e 160 kg ha-1) no acúmulo de forragem, atributos químicos do solo e teor de macronutrientes, em lâminas foliares de capim-massai (Panicum maximum cv. Massai). O delineamento experimental foi o de blocos casualizados, em arranjo fatorial 4 x 5, com quatro repetições. As doses de calcário e nitrogênio influenciaram positivamente o acúmulo de massa seca verde do capim-massai e a saturação por bases do solo. A máxima eficiência agronômica foi obtida nas doses estimadas próximas a 587 kg ha-1 ano-1 de nitrogênio e 5.796 kg ha-1 de calcário, que, no primeiro ano de avaliações, proporcionaram os maiores acúmulos de massa seca verde, com 15.267 kg ha-1 ano-1. Ocorreu elevação na demanda por calcário do primeiro para o segundo ano. Enquanto o calcário elevou a saturação por bases, o nitrogênio causou a redução da mesma. O nitrogênio aplicado ao solo elevou a concentração de nitrogênio, magnésio e cálcio (g kg-1) nas lâminas foliares do capim-massai. Portanto, o capim-massai respondeu positivamente a doses de nitrogênio e calcário, com efeitos significativos no acúmulo de massa seca verde e nas características de solo avaliadas.Escola de Agronomia - Universidade Federal de Goiás2016-03-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/38132Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 1, Jan./Mar. 2016; 19-27Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 1, jan./mar. 2016; 19-27Pesquisa Agropecuária Tropical; v. 46, n. 1, jan./mar. 2016; 19-271983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/38132/20617Cardoso, SandroVolpe, EdimilsonMacedo, Manuel Claudio Mottainfo:eu-repo/semantics/openAccess2020-07-13T17:44:31Zoai:ojs.revistas.ufg.br:article/38132Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:10.515789Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Effect of nitrogen and lime on Massai grass subjected to intensive cutting
Efeito de nitrogênio e calcário em capim-massai sob cortes intensivos
title Effect of nitrogen and lime on Massai grass subjected to intensive cutting
spellingShingle Effect of nitrogen and lime on Massai grass subjected to intensive cutting
Cardoso, Sandro
Panicum maximum cv. Massai
nitrogen fertilization
liming.
Panicum maximum cv. Massai
adubação nitrogenada
calagem.
title_short Effect of nitrogen and lime on Massai grass subjected to intensive cutting
title_full Effect of nitrogen and lime on Massai grass subjected to intensive cutting
title_fullStr Effect of nitrogen and lime on Massai grass subjected to intensive cutting
title_full_unstemmed Effect of nitrogen and lime on Massai grass subjected to intensive cutting
title_sort Effect of nitrogen and lime on Massai grass subjected to intensive cutting
author Cardoso, Sandro
author_facet Cardoso, Sandro
Volpe, Edimilson
Macedo, Manuel Claudio Motta
author_role author
author2 Volpe, Edimilson
Macedo, Manuel Claudio Motta
author2_role author
author
dc.contributor.author.fl_str_mv Cardoso, Sandro
Volpe, Edimilson
Macedo, Manuel Claudio Motta
dc.subject.por.fl_str_mv Panicum maximum cv. Massai
nitrogen fertilization
liming.
Panicum maximum cv. Massai
adubação nitrogenada
calagem.
topic Panicum maximum cv. Massai
nitrogen fertilization
liming.
Panicum maximum cv. Massai
adubação nitrogenada
calagem.
description Soil acidity and lack of nitrogen fertilization limit the yield of forage grasses. This study aimed at evaluating the effects of lime (0 kg ha-1; 2,000 kg ha-1; 4,000 kg ha-1; and 8,000 kg ha-1) and nitrogen (0 kg ha-1, 20 kg ha-1, 40 kg ha-1, 80 kg ha-1 and 160 kg ha-1) doses on forage accumulation, soil chemical properties and macronutrient concentrations in leaf blades of Massai grass (Panicum maximum cv. Massai). A randomized blocks design in a 4 x 5 factorial scheme, with four replications, was used. Lime and nitrogen doses positively affected the accumulation of green dry mass in the Massai grass as well as the base saturation in the soil. The maximum yield was obtained at nitrogen doses close to 587 kg ha-1 year-1 for nitrogen and 5,796 kg ha-1 for lime, which produced the greatest accumulation of green dry mass (15,267 kg ha-1 year-1) in the first year of assessment. The demand for lime increased from the first to the second year. Lime increased the base saturation, whereas nitrogen reduced it. The nitrogen applied to the soil raised the nitrogen, magnesium and calcium contents (g kg-1) in the leaf blades of Massai grass. Thus, Massai grass reacted positively to nitrogen and lime doses, with significant effects on the accumulation of green dry mass and soil characteristics assessed.
publishDate 2016
dc.date.none.fl_str_mv 2016-03-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/38132
url https://revistas.ufg.br/pat/article/view/38132
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/38132/20617
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 1, Jan./Mar. 2016; 19-27
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 1, jan./mar. 2016; 19-27
Pesquisa Agropecuária Tropical; v. 46, n. 1, jan./mar. 2016; 19-27
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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