Straw degradation and nitrogen release from cover crops under no-tillage.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/989720 |
Resumo: | Crops used to cover the ground may also release nitrogen into the soil during mineralization. However, it is necessary to identify species that combine fast nutrient release and longer permanence of the straw on the soil surface. The aim of this study was to investigate straw degradation and nitrogen release from cover crops under no-tillage cropping systems. The field trial was performed during two growing seasons in summer (2008/2009 and 2009/2010) in the Cerrado region of Brazil. The experimental design was a randomized block in factorial arrangement. Treatments were the combination of five plants (four cover crops species, 1 - Panicum maximum, 2- Brachiaria ruziziensis, 3. Brachiaria brizantha and 4. Pennisetum glaucum [millet], and fallow as a control) with six sampling times (first six weeks after application of glyphosate on the cover crops). Pennisetum glaucum and fallow showed faster straw degradation and nitrogen release. The cover crops Panicum maximum, Brachiaria brizantha and Brachiaria ruziziensis stood out in biomass production and in the amount of nitrogen in their shoots but had the lowest coefficients of degradation and persisted longer on the soil surface than Pennisetum glaucum and fallow. |
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Straw degradation and nitrogen release from cover crops under no-tillage.MilhetoPlanta forrageiraPlantio diretoPalhadaNitrogênioPlanta de coberturaCrops used to cover the ground may also release nitrogen into the soil during mineralization. However, it is necessary to identify species that combine fast nutrient release and longer permanence of the straw on the soil surface. The aim of this study was to investigate straw degradation and nitrogen release from cover crops under no-tillage cropping systems. The field trial was performed during two growing seasons in summer (2008/2009 and 2009/2010) in the Cerrado region of Brazil. The experimental design was a randomized block in factorial arrangement. Treatments were the combination of five plants (four cover crops species, 1 - Panicum maximum, 2- Brachiaria ruziziensis, 3. Brachiaria brizantha and 4. Pennisetum glaucum [millet], and fallow as a control) with six sampling times (first six weeks after application of glyphosate on the cover crops). Pennisetum glaucum and fallow showed faster straw degradation and nitrogen release. The cover crops Panicum maximum, Brachiaria brizantha and Brachiaria ruziziensis stood out in biomass production and in the amount of nitrogen in their shoots but had the lowest coefficients of degradation and persisted longer on the soil surface than Pennisetum glaucum and fallow.ADRIANO STEPHAN NASCENTE, CNPAF; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; LUIS FERNANDO STONE, CNPAF.NASCENTE, A. S.CRUSCIOL, C. A. C.STONE, L. F.2014-07-03T11:11:11Z2014-07-03T11:11:11Z2014-07-0320142014-07-03T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Caatinga, Mossoró, v. 27, n. 2, p. 166-175, abr./jun. 2014.1983-2125http://www.alice.cnptia.embrapa.br/alice/handle/doc/989720enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:44:04Zoai:www.alice.cnptia.embrapa.br:doc/989720Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:44:04falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:44:04Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Straw degradation and nitrogen release from cover crops under no-tillage. |
title |
Straw degradation and nitrogen release from cover crops under no-tillage. |
spellingShingle |
Straw degradation and nitrogen release from cover crops under no-tillage. NASCENTE, A. S. Milheto Planta forrageira Plantio direto Palhada Nitrogênio Planta de cobertura |
title_short |
Straw degradation and nitrogen release from cover crops under no-tillage. |
title_full |
Straw degradation and nitrogen release from cover crops under no-tillage. |
title_fullStr |
Straw degradation and nitrogen release from cover crops under no-tillage. |
title_full_unstemmed |
Straw degradation and nitrogen release from cover crops under no-tillage. |
title_sort |
Straw degradation and nitrogen release from cover crops under no-tillage. |
author |
NASCENTE, A. S. |
author_facet |
NASCENTE, A. S. CRUSCIOL, C. A. C. STONE, L. F. |
author_role |
author |
author2 |
CRUSCIOL, C. A. C. STONE, L. F. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
ADRIANO STEPHAN NASCENTE, CNPAF; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; LUIS FERNANDO STONE, CNPAF. |
dc.contributor.author.fl_str_mv |
NASCENTE, A. S. CRUSCIOL, C. A. C. STONE, L. F. |
dc.subject.por.fl_str_mv |
Milheto Planta forrageira Plantio direto Palhada Nitrogênio Planta de cobertura |
topic |
Milheto Planta forrageira Plantio direto Palhada Nitrogênio Planta de cobertura |
description |
Crops used to cover the ground may also release nitrogen into the soil during mineralization. However, it is necessary to identify species that combine fast nutrient release and longer permanence of the straw on the soil surface. The aim of this study was to investigate straw degradation and nitrogen release from cover crops under no-tillage cropping systems. The field trial was performed during two growing seasons in summer (2008/2009 and 2009/2010) in the Cerrado region of Brazil. The experimental design was a randomized block in factorial arrangement. Treatments were the combination of five plants (four cover crops species, 1 - Panicum maximum, 2- Brachiaria ruziziensis, 3. Brachiaria brizantha and 4. Pennisetum glaucum [millet], and fallow as a control) with six sampling times (first six weeks after application of glyphosate on the cover crops). Pennisetum glaucum and fallow showed faster straw degradation and nitrogen release. The cover crops Panicum maximum, Brachiaria brizantha and Brachiaria ruziziensis stood out in biomass production and in the amount of nitrogen in their shoots but had the lowest coefficients of degradation and persisted longer on the soil surface than Pennisetum glaucum and fallow. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-03T11:11:11Z 2014-07-03T11:11:11Z 2014-07-03 2014 2014-07-03T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Caatinga, Mossoró, v. 27, n. 2, p. 166-175, abr./jun. 2014. 1983-2125 http://www.alice.cnptia.embrapa.br/alice/handle/doc/989720 |
identifier_str_mv |
Revista Caatinga, Mossoró, v. 27, n. 2, p. 166-175, abr./jun. 2014. 1983-2125 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/989720 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503391664144384 |