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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
13/12/2013 |
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Data da última atualização: |
20/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JOSLIN, A. H.; MARKEWITZ, D.; MORRIS, L. A.; OLIVEIRA, F. de A.; FIGUEIREDO, R. O.; KATO, O. R. |
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Afiliação: |
AARON H. JOSLIN, Warnell School of Forestry and Natural Resources, The University of Georgia; DANIEL MARKEWITZ, Warnell School of Forestry and Natural Resources, The University of Georgia; LAWRENCE A. MORRIS, Warnell School of Forestry and Natural Resources, The University of Georgia; FRANCISCO DE A. OLIVEIRA, UFRA; RICARDO DE OLIVEIRA FIGUEIREDO, CPATU; OSVALDO RYOHEI KATO, CPATU. |
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Título: |
Soil and plant N-budget 1 year after planting of a slash-and-mulch agroforestry system in the eastern Amazon of Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Agroforestry Systems, v. 87, n. 6, p. 1339-1349, Dec. 2013. |
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DOI: |
10.1007/s10457-013-9641-x |
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Idioma: |
Inglês |
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Conteúdo: |
Nutrient losses during slash-and-burn clearing in tropical forests, coupled with demand by food crops, can deplete nutrients and result in crop abandonment after 1?2 years. Slash-and-mulch technology prevents nutrient losses from burning, while mulch decomposition may serve as a nutrient source. This research investigates the release of nutrients from the mulch and potential uptake of released N by plant biomass after a multi-species agroforestry system was planted in June 2005, following the clearing of a 1 ha of 7-year-old forest with a mulching tractor in Igarapé Açu, Brazil. The study evaluated soil conditions, mulch decomposition, and nutrient concentrations of Manihot esculenta and native vegetation under treatments of P+K fertilization in combination with four native tree species and N-fixing Inga edulis, or with three native tree species without I. edulis. Mulch layer N, Ca and Mg content decreased in response to fertilization, while mulch layer P and K content increased. Nutrient content increased in M. esculenta stems and tubers with fertilization and in the presence of I. edulis, and in competing vegetation with fertilization. Estimated tree N content increased 311 % with fertilization, but by 154 % in the presence of I. edulis. Fertilization with P+K, as well as the presence of I. edulis, increased N stocks in total biomass. |
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Palavras-Chave: |
Fertilização; Queima e corte; Sistema agroflorestal. |
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Thesagro: |
Nitrogênio. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02117naa a2200241 a 4500
001 1973805
005 2022-10-20
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s10457-013-9641-x$2DOI
100 1 $aJOSLIN, A. H.
245 $aSoil and plant N-budget 1 year after planting of a slash-and-mulch agroforestry system in the eastern Amazon of Brazil.$h[electronic resource]
260 $c2013
520 $aNutrient losses during slash-and-burn clearing in tropical forests, coupled with demand by food crops, can deplete nutrients and result in crop abandonment after 1?2 years. Slash-and-mulch technology prevents nutrient losses from burning, while mulch decomposition may serve as a nutrient source. This research investigates the release of nutrients from the mulch and potential uptake of released N by plant biomass after a multi-species agroforestry system was planted in June 2005, following the clearing of a 1 ha of 7-year-old forest with a mulching tractor in Igarapé Açu, Brazil. The study evaluated soil conditions, mulch decomposition, and nutrient concentrations of Manihot esculenta and native vegetation under treatments of P+K fertilization in combination with four native tree species and N-fixing Inga edulis, or with three native tree species without I. edulis. Mulch layer N, Ca and Mg content decreased in response to fertilization, while mulch layer P and K content increased. Nutrient content increased in M. esculenta stems and tubers with fertilization and in the presence of I. edulis, and in competing vegetation with fertilization. Estimated tree N content increased 311 % with fertilization, but by 154 % in the presence of I. edulis. Fertilization with P+K, as well as the presence of I. edulis, increased N stocks in total biomass.
650 $aNitrogênio
653 $aFertilização
653 $aQueima e corte
653 $aSistema agroflorestal
700 1 $aMARKEWITZ, D.
700 1 $aMORRIS, L. A.
700 1 $aOLIVEIRA, F. de A.
700 1 $aFIGUEIREDO, R. O.
700 1 $aKATO, O. R.
773 $tAgroforestry Systems$gv. 87, n. 6, p. 1339-1349, Dec. 2013.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
30/10/2007 |
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Data da última atualização: |
30/10/2007 |
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Autoria: |
LINHARES, A. G.; EICHELBERGER, L. |
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Afiliação: |
Embrapa Trigo. |
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Título: |
Procedimentos adotados na produção de semente genética de cereais de inverno na Embrapa Trigo. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Passo Fundo: Embrapa Trigo, 2005. |
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Páginas: |
8 p. html. |
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Descrição Física: |
Publicação Online. |
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Série: |
(Embrapa Trigo. Documentos Online, 46). |
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ISSN: |
1518-6512 |
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Idioma: |
Português |
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Categoria do assunto: |
-- |
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URL: |
https://www.infoteca.cnptia.embrapa.br/infoteca/bitstream/doc/852499/1/pdo46.pdf
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Marc: |
LEADER 00481nam a2200145 a 4500
001 1852499
005 2007-10-30
008 2005 bl uuuu u0uu1 u #d
022 $a1518-6512
100 1 $aLINHARES, A. G.
245 $aProcedimentos adotados na produção de semente genética de cereais de inverno na Embrapa Trigo.
260 $aPasso Fundo: Embrapa Trigo$c2005
300 $a8 p. html.$cPublicação Online.
490 $a(Embrapa Trigo. Documentos Online, 46).
700 1 $aEICHELBERGER, L.
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Embrapa Trigo (CNPT) |
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