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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
05/11/2001 |
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Data da última atualização: |
05/11/2001 |
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Autoria: |
KANDA, K.; TAKAHSHI, M.; MIRANDA, C. H. B. |
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Afiliação: |
Japan International Research Center for Agricultural Sciences (JIRCAS). |
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Título: |
Nitrogen flow in agropastoral systems, Brazil. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
JIRCAS Journal, Isukuba, n.9, p.23-31, mar. 2001. |
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Idioma: |
Inglês |
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Notas: |
CNPGC. |
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Conteúdo: |
Agropastoral systems that combine soybean and grasses in a crop rotation have been proposed for sustaining grassland productivity in the low-fertility soils of the Brazilian savanna. We studied the nitrogen flow under an agro-pastoral system developed in 1993 in a Purple Red Latosol in Campo Grande, MS. Four cropping systems were included: continuous soybean cropping, soybean cropping after 4 years of grass cultivation. continuous grass cultivation, grass cultivation after 4 years of soybean cropping. The rate of N fixation in soybean was determined by the N difference method and 15N natural abundance method. A non-modulating isoline, T201, was used as a control in both methods. The rate of N2 fixation rangel from 23 to 51% of the total plant N. The amount of N taken out as grains was larger than the amount of fixed N in soybean. the amount of entering the system through rainwater was 6 kgN/ha/yr. Nitrato accumulating in soil from the surface to a deph of 100 cm under soybeans indicated the potential leaching of nitrate. The estimated amount of nitrate leaching from the soybean fields was large compared with that from the grasslands. A large negative N balance of 134-211 kgN/ha/yr was estimated in the soybean fields, whereas the N balance in the grasslands was a sligtly negative. |
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Palavras-Chave: |
Agropastoral systems; Basilisk; Brasil; Brazilian savannas; Campo Grande; Integracao agricultura pecuaria; Mato Grosso do Sul. |
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Thesagro: |
Brachiaria Decumbens; Cerrado; Nitrogênio; Panicum Maximum; Pastagem; Soja. |
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Thesaurus Nal: |
Brazil; nitrogen; pastures; soybeans. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02204naa a2200361 a 4500
001 1324250
005 2001-11-05
008 2001 bl uuuu u00u1 u #d
100 1 $aKANDA, K.
245 $aNitrogen flow in agropastoral systems, Brazil.
260 $c2001
500 $aCNPGC.
520 $aAgropastoral systems that combine soybean and grasses in a crop rotation have been proposed for sustaining grassland productivity in the low-fertility soils of the Brazilian savanna. We studied the nitrogen flow under an agro-pastoral system developed in 1993 in a Purple Red Latosol in Campo Grande, MS. Four cropping systems were included: continuous soybean cropping, soybean cropping after 4 years of grass cultivation. continuous grass cultivation, grass cultivation after 4 years of soybean cropping. The rate of N fixation in soybean was determined by the N difference method and 15N natural abundance method. A non-modulating isoline, T201, was used as a control in both methods. The rate of N2 fixation rangel from 23 to 51% of the total plant N. The amount of N taken out as grains was larger than the amount of fixed N in soybean. the amount of entering the system through rainwater was 6 kgN/ha/yr. Nitrato accumulating in soil from the surface to a deph of 100 cm under soybeans indicated the potential leaching of nitrate. The estimated amount of nitrate leaching from the soybean fields was large compared with that from the grasslands. A large negative N balance of 134-211 kgN/ha/yr was estimated in the soybean fields, whereas the N balance in the grasslands was a sligtly negative.
650 $aBrazil
650 $anitrogen
650 $apastures
650 $asoybeans
650 $aBrachiaria Decumbens
650 $aCerrado
650 $aNitrogênio
650 $aPanicum Maximum
650 $aPastagem
650 $aSoja
653 $aAgropastoral systems
653 $aBasilisk
653 $aBrasil
653 $aBrazilian savannas
653 $aCampo Grande
653 $aIntegracao agricultura pecuaria
653 $aMato Grosso do Sul
700 1 $aTAKAHSHI, M.
700 1 $aMIRANDA, C. H. B.
773 $tJIRCAS Journal, Isukuba$gn.9, p.23-31, mar. 2001.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
27/07/1998 |
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Data da última atualização: |
24/08/2012 |
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Autoria: |
MELO, C. F. M. de; FURLAN JUNIOR, J.; HUHN, S. |
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Afiliação: |
CELIO FRANCISCO MARQUES DE MELO; JOSÉ FURLAN JUNIOR, CPATU; SEBASTIÃO HUHN, CPATU. |
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Título: |
Pimenta-do-reino: óleo essencial e oleorresina. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: SEMINÁRIO INTERNACIONAL SOBRE PIMENTA-DO-REINO E CUPUAÇU, 1996, Belém, PA. Anais... Belém, PA: EMBRAPA-CPATU: JICA, 1997. |
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Páginas: |
p. 307-313. |
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Série: |
(EMBRAPA-CPATU. Documentos, 89). |
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Idioma: |
Português |
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Palavras-Chave: |
Extração do óleo essencial; Extração do oleorresina; Pimenta-do-reino; Processed plant products. |
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Thesagro: |
Piper Nigrum; Tecnologia. |
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Thesaurus NAL: |
essential oils; resins; technology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/64953/1/Doc89-p307.pdf
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Marc: |
LEADER 00823naa a2200265 a 4500
001 1394586
005 2012-08-24
008 1997 bl uuuu u00u1 u #d
100 1 $aMELO, C. F. M. de
245 $aPimenta-do-reino$bóleo essencial e oleorresina.
260 $c1997
300 $ap. 307-313.
490 $a(EMBRAPA-CPATU. Documentos, 89).
650 $aessential oils
650 $aresins
650 $atechnology
650 $aPiper Nigrum
650 $aTecnologia
653 $aExtração do óleo essencial
653 $aExtração do oleorresina
653 $aPimenta-do-reino
653 $aProcessed plant products
700 1 $aFURLAN JUNIOR, J.
700 1 $aHUHN, S.
773 $tIn: SEMINÁRIO INTERNACIONAL SOBRE PIMENTA-DO-REINO E CUPUAÇU, 1996, Belém, PA. Anais... Belém, PA: EMBRAPA-CPATU: JICA, 1997.
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Embrapa Amazônia Oriental (CPATU) |
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