Decomposition and nutrient release from soybean cut at different growth stages
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/7190 |
Resumo: | The objective of this work was to evaluate the dynamics of decomposition and release of nutrients from aerial plant parts of the soybean cultivar Celeste used as green manure. A randomized block design was adopted with five replications. Soybean plants were cut close to the soil surface 55, 85 and 115 days after emergency (DAE), and analysed to determine their decomposition and release of N, P, K, Ca and Mg, by placing 60 g of fresh material of the aerial part in nylon screen bags, that were distributed on field plots surface . The rates of loss of dry matter and of nutrient release were monitored in the 5, 10, 15, 30, 60, 90, 120 and 150 days after plant cut. The exponential model X = X0e-kt demonstrated that the dynamics of the material cut in the 55, 85 and 115 DAE were not so contrasting. The climate could have interfered on the results, principally on K release rates, however it did not cause mean differences on the biomass decomposition and N and P release. Soybean plant material from cut plants, at different growth stages, present similar rates of decomposition and nutrient release. |
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Decomposition and nutrient release from soybean cut at different growth stagesDecomposição e liberação de nutrientes de soja cortada em diferentes estádios de desenvolvimentoGlycine max; decomposition dynamics; half-life time; organic agricultureGlycine max; dinâmica de decomposição; tempo de meia-vida; agricultura orgânicaThe objective of this work was to evaluate the dynamics of decomposition and release of nutrients from aerial plant parts of the soybean cultivar Celeste used as green manure. A randomized block design was adopted with five replications. Soybean plants were cut close to the soil surface 55, 85 and 115 days after emergency (DAE), and analysed to determine their decomposition and release of N, P, K, Ca and Mg, by placing 60 g of fresh material of the aerial part in nylon screen bags, that were distributed on field plots surface . The rates of loss of dry matter and of nutrient release were monitored in the 5, 10, 15, 30, 60, 90, 120 and 150 days after plant cut. The exponential model X = X0e-kt demonstrated that the dynamics of the material cut in the 55, 85 and 115 DAE were not so contrasting. The climate could have interfered on the results, principally on K release rates, however it did not cause mean differences on the biomass decomposition and N and P release. Soybean plant material from cut plants, at different growth stages, present similar rates of decomposition and nutrient release.O objetivo deste trabalho foi avaliar a dinâmica de decomposição e a liberação de nutrientes da parte aérea de plantas de soja cultivar Celeste, para fins de adubação verde. Utilizou-se o delineamento experimental de blocos ao acaso com cinco repetições. Nas parcelas, as plantas foram cortadas rente ao solo aos 55, 85 e 115 dias após a emergência (DAE) e foram analisadas quanto à decomposição do material vegetal e liberação de N, P, K, Ca e Mg, colocando-se 60 g de matéria fresca da parte aérea em sacos de tela, distribuídos sobre a superfície das parcelas no campo. Nas subparcelas, as taxas de redução de massa de matéria seca e de liberação de nutrientes foram monitoradas mediante análises aos 5, 10, 15, 30, 60, 90, 120 e 150 dias após os cortes das plantas. O modelo exponencial X = X0e-kt demonstrou dinâmicas não muito contrastantes, para os materiais cortados aos 55, 85 e 115 DAE. Apesar de o clima possivelmente ter influenciado na liberação de K, não causou diferenças significativas na decomposição de matéria seca e na liberação de N e fósforo. As plantas de soja, cortadas em diferentes estádios de desenvolvimento, apresentam taxas similares de decomposição e de liberação de nutrientes.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPadovan, Milton ParronAlmeida, Dejair Lopes deGuerra, José Guilherme MarinhoRibeiro, Raul de Lucena DuarteOliveira, Fábio Luiz deSantos, Leandro AzevedoAlves, Bruno José RodriguesSouto, Sebastião Manhães2006-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7190Pesquisa Agropecuaria Brasileira; v.41, n.4, abr. 2006; 667-672Pesquisa Agropecuária Brasileira; v.41, n.4, abr. 2006; 667-6721678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7190/4235info:eu-repo/semantics/openAccess2014-09-29T18:03:41Zoai:ojs.seer.sct.embrapa.br:article/7190Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-29T18:03:41Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Decomposition and nutrient release from soybean cut at different growth stages Decomposição e liberação de nutrientes de soja cortada em diferentes estádios de desenvolvimento |
title |
Decomposition and nutrient release from soybean cut at different growth stages |
spellingShingle |
Decomposition and nutrient release from soybean cut at different growth stages Padovan, Milton Parron Glycine max; decomposition dynamics; half-life time; organic agriculture Glycine max; dinâmica de decomposição; tempo de meia-vida; agricultura orgânica |
title_short |
Decomposition and nutrient release from soybean cut at different growth stages |
title_full |
Decomposition and nutrient release from soybean cut at different growth stages |
title_fullStr |
Decomposition and nutrient release from soybean cut at different growth stages |
title_full_unstemmed |
Decomposition and nutrient release from soybean cut at different growth stages |
title_sort |
Decomposition and nutrient release from soybean cut at different growth stages |
author |
Padovan, Milton Parron |
author_facet |
Padovan, Milton Parron Almeida, Dejair Lopes de Guerra, José Guilherme Marinho Ribeiro, Raul de Lucena Duarte Oliveira, Fábio Luiz de Santos, Leandro Azevedo Alves, Bruno José Rodrigues Souto, Sebastião Manhães |
author_role |
author |
author2 |
Almeida, Dejair Lopes de Guerra, José Guilherme Marinho Ribeiro, Raul de Lucena Duarte Oliveira, Fábio Luiz de Santos, Leandro Azevedo Alves, Bruno José Rodrigues Souto, Sebastião Manhães |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Padovan, Milton Parron Almeida, Dejair Lopes de Guerra, José Guilherme Marinho Ribeiro, Raul de Lucena Duarte Oliveira, Fábio Luiz de Santos, Leandro Azevedo Alves, Bruno José Rodrigues Souto, Sebastião Manhães |
dc.subject.por.fl_str_mv |
Glycine max; decomposition dynamics; half-life time; organic agriculture Glycine max; dinâmica de decomposição; tempo de meia-vida; agricultura orgânica |
topic |
Glycine max; decomposition dynamics; half-life time; organic agriculture Glycine max; dinâmica de decomposição; tempo de meia-vida; agricultura orgânica |
description |
The objective of this work was to evaluate the dynamics of decomposition and release of nutrients from aerial plant parts of the soybean cultivar Celeste used as green manure. A randomized block design was adopted with five replications. Soybean plants were cut close to the soil surface 55, 85 and 115 days after emergency (DAE), and analysed to determine their decomposition and release of N, P, K, Ca and Mg, by placing 60 g of fresh material of the aerial part in nylon screen bags, that were distributed on field plots surface . The rates of loss of dry matter and of nutrient release were monitored in the 5, 10, 15, 30, 60, 90, 120 and 150 days after plant cut. The exponential model X = X0e-kt demonstrated that the dynamics of the material cut in the 55, 85 and 115 DAE were not so contrasting. The climate could have interfered on the results, principally on K release rates, however it did not cause mean differences on the biomass decomposition and N and P release. Soybean plant material from cut plants, at different growth stages, present similar rates of decomposition and nutrient release. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-04-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7190 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7190 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7190/4235 |
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 |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.41, n.4, abr. 2006; 667-672 Pesquisa Agropecuária Brasileira; v.41, n.4, abr. 2006; 667-672 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416688441491456 |