Ammonia volatilization losses in Tanzania grass fertilized with urea
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1519-99402015000100005 http://hdl.handle.net/11449/132975 |
Resumo: | Gaseous losses are the main factors affecting the efficiency of nitrogenous fertilizers in pastures. To evaluate NH3-N volatilization losses in Tanzania grass fertilized with urea in autumn, spring and summer, a completely randomized design with repeated measurements over time and fifteen replicates was used. Plots were represented by urea levels (50; 100 and 150 kg ha-1 N) and subplots by time after fertilization (1; 2; 3; 6; 9; 12 and 15 days). The interaction between fertilization leveland time after urea application was significant for the accumulated NH3-N volatilization. Urea application leads to higher percentage N losses in the first three days after application. The average cumulative NH3- N loss for the three occasions (different seasons of the year) was 28%, 20% and 16% of N applied for fertilizer doses of 50; 100 and 150 kg ha-1 of N, respectively. The season of the year influenced NH3-N loss pattern and volume, with the lowest values recorded in spring, followed by summer and autumn. The cumulative NH3-N volatilization loss varies from 78 to 90% up to the third day after application of the total NNH3 loss. |
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Ammonia volatilization losses in Tanzania grass fertilized with ureaPerdas de amônia por volatilização em capim-Tanzânia adubada com ureiaPanicum maximumNitrogen fertilizerPasturePanicum maximumFertilizante nitrogenadoPastagemGaseous losses are the main factors affecting the efficiency of nitrogenous fertilizers in pastures. To evaluate NH3-N volatilization losses in Tanzania grass fertilized with urea in autumn, spring and summer, a completely randomized design with repeated measurements over time and fifteen replicates was used. Plots were represented by urea levels (50; 100 and 150 kg ha-1 N) and subplots by time after fertilization (1; 2; 3; 6; 9; 12 and 15 days). The interaction between fertilization leveland time after urea application was significant for the accumulated NH3-N volatilization. Urea application leads to higher percentage N losses in the first three days after application. The average cumulative NH3- N loss for the three occasions (different seasons of the year) was 28%, 20% and 16% of N applied for fertilizer doses of 50; 100 and 150 kg ha-1 of N, respectively. The season of the year influenced NH3-N loss pattern and volume, with the lowest values recorded in spring, followed by summer and autumn. The cumulative NH3-N volatilization loss varies from 78 to 90% up to the third day after application of the total NNH3 loss.As perdas gasosas são os principais fatores de ineficiência do uso de fertilizantes nitrogenados nas pastagens. Com o objetivo de estimar a perda N-NH3 por volatilização foi realizado um experimento com capim Tanzânia adubada com ureia nas estações de outono, primavera e verão. Adotou-se um delineamento experimental inteiramente casualizado, com medidas repetidas no tempo com quinze repetições. Nas parcelas, as doses de N-ureia (50, 100 e 150 kg ha-1 de N-ureia) e, nas subparcelas, o período depois da adubação nitrogenada (1, 2, 3, 6, 9, 12 e 15 dias). A interação entre o nível de adubação e o período depois da aplicação de ureia foi significativa para a variável volatilização acumulada de N-NH3. A aplicação da ureia acarreta perdas percentuais mais elevadas de N nos três primeiros dias após a aplicação. A perda média acumulada de N-NH3 no período para as três estações do ano representou 28%, 20% e 16% do N aplicado nas adubações com 50, 100 e 150 kg ha-1 de N-ureia, respectivamente. A estação do ano influenciou no padrão e na quantidade das perdas, com menores valores encontrados na primavera, seguidos do verão e outono. A perda acumulada de N-NH3 por volatilização variou de 78 a 90% até o terceiro dia após aplicação do total perdido.Universidade Estadual de Maringá, Departamento de ZootecniaUniversidade Federal da Bahia, Departamento de Zootecnia, Escola de Medicina Veterinária e ZootecniaUniversidade Estadual Paulista, Departamento de Apoio, Produção e Saúde Animal, Faculdade de Medicina Veterinária de AraçatubaUniversidade Estadual Paulista (Unesp)Universidade Estadual de Maringá (UEM)Universidade Federal da Bahia (UFBA)Soares Filho, Cecilio Viega [UNESP]Cecato, UlyssesRibeiro, Ossival LolatoRoma, Claudio Fabricio da CruzBeloni, Tatiane2016-01-28T16:52:58Z2016-01-28T16:52:58Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article253-264application/pdfhttp://dx.doi.org/10.1590/S1519-99402015000100005Revista Brasileira de Saúde e Produção Animal, v. 16, n. 1, p. 253-264, 2015.1519-9940http://hdl.handle.net/11449/13297510.1590/S1519-99402015000100005S1519-99402015000100005S1519-99402015000100005.pdf2245919840729611Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Saúde e Produção Animal0,273info:eu-repo/semantics/openAccess2024-09-04T19:14:54Zoai:repositorio.unesp.br:11449/132975Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-04T19:14:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ammonia volatilization losses in Tanzania grass fertilized with urea Perdas de amônia por volatilização em capim-Tanzânia adubada com ureia |
title |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
spellingShingle |
Ammonia volatilization losses in Tanzania grass fertilized with urea Soares Filho, Cecilio Viega [UNESP] Panicum maximum Nitrogen fertilizer Pasture Panicum maximum Fertilizante nitrogenado Pastagem |
title_short |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
title_full |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
title_fullStr |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
title_full_unstemmed |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
title_sort |
Ammonia volatilization losses in Tanzania grass fertilized with urea |
author |
Soares Filho, Cecilio Viega [UNESP] |
author_facet |
Soares Filho, Cecilio Viega [UNESP] Cecato, Ulysses Ribeiro, Ossival Lolato Roma, Claudio Fabricio da Cruz Beloni, Tatiane |
author_role |
author |
author2 |
Cecato, Ulysses Ribeiro, Ossival Lolato Roma, Claudio Fabricio da Cruz Beloni, Tatiane |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Maringá (UEM) Universidade Federal da Bahia (UFBA) |
dc.contributor.author.fl_str_mv |
Soares Filho, Cecilio Viega [UNESP] Cecato, Ulysses Ribeiro, Ossival Lolato Roma, Claudio Fabricio da Cruz Beloni, Tatiane |
dc.subject.por.fl_str_mv |
Panicum maximum Nitrogen fertilizer Pasture Panicum maximum Fertilizante nitrogenado Pastagem |
topic |
Panicum maximum Nitrogen fertilizer Pasture Panicum maximum Fertilizante nitrogenado Pastagem |
description |
Gaseous losses are the main factors affecting the efficiency of nitrogenous fertilizers in pastures. To evaluate NH3-N volatilization losses in Tanzania grass fertilized with urea in autumn, spring and summer, a completely randomized design with repeated measurements over time and fifteen replicates was used. Plots were represented by urea levels (50; 100 and 150 kg ha-1 N) and subplots by time after fertilization (1; 2; 3; 6; 9; 12 and 15 days). The interaction between fertilization leveland time after urea application was significant for the accumulated NH3-N volatilization. Urea application leads to higher percentage N losses in the first three days after application. The average cumulative NH3- N loss for the three occasions (different seasons of the year) was 28%, 20% and 16% of N applied for fertilizer doses of 50; 100 and 150 kg ha-1 of N, respectively. The season of the year influenced NH3-N loss pattern and volume, with the lowest values recorded in spring, followed by summer and autumn. The cumulative NH3-N volatilization loss varies from 78 to 90% up to the third day after application of the total NNH3 loss. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2016-01-28T16:52:58Z 2016-01-28T16:52:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1519-99402015000100005 Revista Brasileira de Saúde e Produção Animal, v. 16, n. 1, p. 253-264, 2015. 1519-9940 http://hdl.handle.net/11449/132975 10.1590/S1519-99402015000100005 S1519-99402015000100005 S1519-99402015000100005.pdf 2245919840729611 |
url |
http://dx.doi.org/10.1590/S1519-99402015000100005 http://hdl.handle.net/11449/132975 |
identifier_str_mv |
Revista Brasileira de Saúde e Produção Animal, v. 16, n. 1, p. 253-264, 2015. 1519-9940 10.1590/S1519-99402015000100005 S1519-99402015000100005 S1519-99402015000100005.pdf 2245919840729611 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Saúde e Produção Animal 0,273 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
253-264 application/pdf |
dc.source.none.fl_str_mv |
Currículo Lattes reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021360113549312 |