Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates
Autor(a) principal: | |
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Data de Publicação: | 2005 |
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/7069 |
Resumo: | The objetive of this work was to evaluate modifications in the microbial biomass, metabolic quotient, types of mineral nitrogen, C/N ratio, and total organic colloids concentration. The following variations in the substrate composition were utilized: pure cattle manure, pure cattle manure + sugarcane bagasse 1:1 ratio, and pure cattle manure + sugarcane bagasse + leaves of Cajanus cajan 2:1:1 ratio. The mixture was made on volume bases and the substrate composition filled boxes of 0.4 m3. Three hundred earthworms of the species Eisenia foetida and 100 of Eudrillus eugeniae were introduced in the boxes. Every 20 days, approximately, samples were collected for analysis during a total period of 126 days. The experiment was placed in a randomized complete block design, with a factorial 3x8, with three replications and the following treatments: three types of substrate and eight sampling dates. Microbial biomass, metabolic quotient and types of mineral nitrogen concentrations were not good indexes to characterize the maturity point of the vermicomposting process. Based on C/N ratio, the pure cattle manure reached stability in 70 days and sugarcane bagasse and pure cattle manure + sugarcane bagasse + Cajanus cajan leaves in 90 days. The determination of organic colloids was a simple assay, but was not also a good index to characterize the maturity point of the vermicomposting process. |
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Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substratesBiomassa microbiana, colóides orgânicos e nitrogênio inorgânico durante a vermicompostagem de diferentes substratosOligochaeta; earthworms; vermicompost; compost maturityOligochaeta; minhocas; vermicomposto; maturidade do composto The objetive of this work was to evaluate modifications in the microbial biomass, metabolic quotient, types of mineral nitrogen, C/N ratio, and total organic colloids concentration. The following variations in the substrate composition were utilized: pure cattle manure, pure cattle manure + sugarcane bagasse 1:1 ratio, and pure cattle manure + sugarcane bagasse + leaves of Cajanus cajan 2:1:1 ratio. The mixture was made on volume bases and the substrate composition filled boxes of 0.4 m3. Three hundred earthworms of the species Eisenia foetida and 100 of Eudrillus eugeniae were introduced in the boxes. Every 20 days, approximately, samples were collected for analysis during a total period of 126 days. The experiment was placed in a randomized complete block design, with a factorial 3x8, with three replications and the following treatments: three types of substrate and eight sampling dates. Microbial biomass, metabolic quotient and types of mineral nitrogen concentrations were not good indexes to characterize the maturity point of the vermicomposting process. Based on C/N ratio, the pure cattle manure reached stability in 70 days and sugarcane bagasse and pure cattle manure + sugarcane bagasse + Cajanus cajan leaves in 90 days. The determination of organic colloids was a simple assay, but was not also a good index to characterize the maturity point of the vermicomposting process.O objetivo deste trabalho foi avaliar as modificações que ocorrem no substrato durante a vermicompostagem, utilizando-se biomassa microbiana, formas de N mineral, relação C/N e colóides orgânicos totais. As seguintes misturas foram utilizadas como substratos para a vermicompostagem: esterco, esterco + bagaço na proporção de 1:1, e esterco + bagaço + guandu na proporção de 2:1:1. As misturas foram feitas com base em volume e acondicionadas em canteiros de 0,4 m3. Trezentas minhocas da espécie Eisenia foetida e 100 da Eudrilus eugeniae foram introduzidas em cada canteiro. A cada 20 dias, aproximadamente, num total de 126 dias, foram realizadas as amostragens para a realização das análises. O delineamento experimental adotado foi o de blocos ao acaso, com três repetições em esquema fatorial de 3x8 (três substratos e oito épocas de amostragens). As modificações na biomassa microbiana, quociente metabólico e o conteúdo de nitrato e amônio, não possibilitaram caracterizar a época da maturidade dos vermicompostos. O esterco leva cerca de 70 dias para apresentar relação C/N estável, o esterco + bagaço e o esterco + bagaço + guandu levam 90 dias. A determinação dos colóides orgânicos totais é bastante simples, mas não possibilita caracterizar a maturidade dos vermicompostos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirade Aquino, Adriana Mariade Almeida, Dejair LopesGuerra, José Guilherme MarinhoDe-Polli, Helvécio2005-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7069Pesquisa Agropecuaria Brasileira; v.40, n.11, nov. 2005; 1087-1093Pesquisa Agropecuária Brasileira; v.40, n.11, nov. 2005; 1087-10931678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7069/4117info:eu-repo/semantics/openAccess2014-07-14T17:24:41Zoai:ojs.seer.sct.embrapa.br:article/7069Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-14T17:24:41Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates Biomassa microbiana, colóides orgânicos e nitrogênio inorgânico durante a vermicompostagem de diferentes substratos |
title |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
spellingShingle |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates de Aquino, Adriana Maria Oligochaeta; earthworms; vermicompost; compost maturity Oligochaeta; minhocas; vermicomposto; maturidade do composto |
title_short |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
title_full |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
title_fullStr |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
title_full_unstemmed |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
title_sort |
Microbial biomass, organic colloids and inorganic nitrogen, during vermicomposting of some substrates |
author |
de Aquino, Adriana Maria |
author_facet |
de Aquino, Adriana Maria de Almeida, Dejair Lopes Guerra, José Guilherme Marinho De-Polli, Helvécio |
author_role |
author |
author2 |
de Almeida, Dejair Lopes Guerra, José Guilherme Marinho De-Polli, Helvécio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
de Aquino, Adriana Maria de Almeida, Dejair Lopes Guerra, José Guilherme Marinho De-Polli, Helvécio |
dc.subject.por.fl_str_mv |
Oligochaeta; earthworms; vermicompost; compost maturity Oligochaeta; minhocas; vermicomposto; maturidade do composto |
topic |
Oligochaeta; earthworms; vermicompost; compost maturity Oligochaeta; minhocas; vermicomposto; maturidade do composto |
description |
The objetive of this work was to evaluate modifications in the microbial biomass, metabolic quotient, types of mineral nitrogen, C/N ratio, and total organic colloids concentration. The following variations in the substrate composition were utilized: pure cattle manure, pure cattle manure + sugarcane bagasse 1:1 ratio, and pure cattle manure + sugarcane bagasse + leaves of Cajanus cajan 2:1:1 ratio. The mixture was made on volume bases and the substrate composition filled boxes of 0.4 m3. Three hundred earthworms of the species Eisenia foetida and 100 of Eudrillus eugeniae were introduced in the boxes. Every 20 days, approximately, samples were collected for analysis during a total period of 126 days. The experiment was placed in a randomized complete block design, with a factorial 3x8, with three replications and the following treatments: three types of substrate and eight sampling dates. Microbial biomass, metabolic quotient and types of mineral nitrogen concentrations were not good indexes to characterize the maturity point of the vermicomposting process. Based on C/N ratio, the pure cattle manure reached stability in 70 days and sugarcane bagasse and pure cattle manure + sugarcane bagasse + Cajanus cajan leaves in 90 days. The determination of organic colloids was a simple assay, but was not also a good index to characterize the maturity point of the vermicomposting process. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-11-01 |
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/7069 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7069 |
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/7069/4117 |
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.40, n.11, nov. 2005; 1087-1093 Pesquisa Agropecuária Brasileira; v.40, n.11, nov. 2005; 1087-1093 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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1793416714271064064 |