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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
03/05/1999 |
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Data da última atualização: |
03/05/1999 |
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Autoria: |
DOBEREINER, Johanna. |
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Título: |
Biological nitrogen fixation in the tropics: Social and economic contributions. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Soil Biology and Biochemistry, Oxford, v. 29, n. 5/6, p. 771-777, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil has become the world leader in replacing N fertilisers by biological N2 fixation (BNF). Even though agriculture in Brazil is one of the main export-producing activities, it has become the country which uses the lowest N applications (mean 10 kg ha-1). Soybeans selected with zero N applications have become the country's largest export product. Cereals, also selected with N supplies much below their need, unknowingly were selected for associations with diazotrophic bacteria and can obtain up to 30% of their N from BNF when fertilised with ample PK and minor elements. The largest effect in this group was obtained with sugar cane, which can obtain up to 150 kg N ha-1 from BNF. This has become the key to the success of the Brazilian Bio-fuel programme wherebecause of increases in the energy balance when the cane is planted without any N fertiliser and without burning the leaves, the energy produced is more than 5 times that required to produce it. Recently possibilities of expanding this biofuel programme to diesel oil are arising from the isolation of probably new diazotrophs which colonise the stems of oil palms, of the Brazilian palm genotypes which usually are not fertilised with N. |
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Palavras-Chave: |
BNF; Cereals; FBN; Feed crops; Fixação biologica de nitrogênio; Nitrogen fixing bacteria. |
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Thesagro: |
Gramínea Forrageira. |
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Thesaurus Nal: |
grasses. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01832naa a2200217 a 4500
001 1621088
005 1999-05-03
008 1997 bl uuuu u00u1 u #d
100 1 $aDOBEREINER, Johanna.
245 $aBiological nitrogen fixation in the tropics$bSocial and economic contributions.
260 $c1997
520 $aBrazil has become the world leader in replacing N fertilisers by biological N2 fixation (BNF). Even though agriculture in Brazil is one of the main export-producing activities, it has become the country which uses the lowest N applications (mean 10 kg ha-1). Soybeans selected with zero N applications have become the country's largest export product. Cereals, also selected with N supplies much below their need, unknowingly were selected for associations with diazotrophic bacteria and can obtain up to 30% of their N from BNF when fertilised with ample PK and minor elements. The largest effect in this group was obtained with sugar cane, which can obtain up to 150 kg N ha-1 from BNF. This has become the key to the success of the Brazilian Bio-fuel programme wherebecause of increases in the energy balance when the cane is planted without any N fertiliser and without burning the leaves, the energy produced is more than 5 times that required to produce it. Recently possibilities of expanding this biofuel programme to diesel oil are arising from the isolation of probably new diazotrophs which colonise the stems of oil palms, of the Brazilian palm genotypes which usually are not fertilised with N.
650 $agrasses
650 $aGramínea Forrageira
653 $aBNF
653 $aCereals
653 $aFBN
653 $aFeed crops
653 $aFixação biologica de nitrogênio
653 $aNitrogen fixing bacteria
773 $tSoil Biology and Biochemistry, Oxford$gv. 29, n. 5/6, p. 771-777, 1997.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 69 | |
| 8. |  | BALDANI, V. L. D.; DÖBEREINER, Johanna. Alternativas importantes para uma agricultura mais ecológica. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 23.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 7., SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 5., REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 2., out. 1998, Caxambu. Resumos... Lavras: UFLA / SBCS / SBM, 1998. p. 9. FERTBIO 98.| Biblioteca(s): Embrapa Agrobiologia. |
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| 9. | | BALDANI, V. L. D.; DOBEREINER, Johanna. Alternativas para uma agricultura mais ecologica. In: SIQUEIRA, J.O.; MOREIRA, F.M.S.; LOPES, A.S.; GUILHERME, L.R.G.; FAQUIN, V.; FURTINI NETO, A.E.; CARVALHO, J.G., eds. Inter-relacao fertilidade, biologia do solo e nutricao de plantas. Vicosa: SBCS; Lavras: UFLA/DCS, 1999. p.171-174.| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 69 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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