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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/08/1992 |
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Data da última atualização: |
28/04/2005 |
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Autoria: |
DANSO, S. K. A.; HERA, C.; DOUKA, C. |
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Afiliação: |
FAO/IAEA, Vienna, Austria. |
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Título: |
Nitrogen fixation in soybean as influenced by cultivar and rhizobium strain. |
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Edição: |
2.ed. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON GENETIC ASPECTS OF PLANT MINERAL NUTRITION, 2, 1985, Madison. Genetics aspects of plant mineral nutrition: proceedings. Dordrecht: Martinus Nifhoff, 1987. p.511-522 |
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ISBN: |
90-247-3494-0 |
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Idioma: |
Inglês |
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Notas: |
Editado por W.H. Gabelman e B.C. Loughman. |
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Conteúdo: |
The 15N-substratum labeling technique and other indirect methods were used to compare nitrogen (N2) fixation in soybean varieties grown in the field in Greece and Romania. Significant variation in the amount (Ndfa) and proportion of N derived from fixation (% Ndfa) was found in different varieties. With 20 kg N/ha applied to soil, N2 fixed ranged from 22 to 236 kg N/ha in Greece and from 17 to 132 kg N/ha in Romania. In generalm varieties of treatmentswith higher dry matter yield supported greater fixation. Also, varieties with Ndfa had high % Ndfa and vice versa. Breeding N2-fixing legumes for high yields at low soil N levels therefore appers to be a reasonable strategy for enchancing N2 fixation. Heavy applications of inorganic N fertilizer severely depressed N2 fixation in two out of the three varieties used in Romania. One variety, F 74-412, however, derived slightly higher amounts of N2 from fixation at 100kg N/ha rate than when fertilized with 20 kg N/ha. In greece, Chippewa, Williams and Amsoy-71 inoculed with a Nitragin inoculant fixed similar amounts of N2 at both 20 and 100 kg N/ha fertilizer rates. However, when Chippewa and Williams were inoculated with another, locally-isolated rhizobium strain, N2 fixation was substantially depressed at the higher N rate. |
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Palavras-Chave: |
Cultivar; Dry matter yield; Soybean; Variety. |
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Thesagro: |
Bradyrhizobium Japonicum; Matéria Seca; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02146naa a2200265 a 4500
001 1452229
005 2005-04-28
008 1987 bl uuuu u00u1 u #d
020 $a90-247-3494-0
100 1 $aDANSO, S. K. A.
245 $aNitrogen fixation in soybean as influenced by cultivar and rhizobium strain.
250 $a2.ed.
260 $c1987
500 $aEditado por W.H. Gabelman e B.C. Loughman.
520 $aThe 15N-substratum labeling technique and other indirect methods were used to compare nitrogen (N2) fixation in soybean varieties grown in the field in Greece and Romania. Significant variation in the amount (Ndfa) and proportion of N derived from fixation (% Ndfa) was found in different varieties. With 20 kg N/ha applied to soil, N2 fixed ranged from 22 to 236 kg N/ha in Greece and from 17 to 132 kg N/ha in Romania. In generalm varieties of treatmentswith higher dry matter yield supported greater fixation. Also, varieties with Ndfa had high % Ndfa and vice versa. Breeding N2-fixing legumes for high yields at low soil N levels therefore appers to be a reasonable strategy for enchancing N2 fixation. Heavy applications of inorganic N fertilizer severely depressed N2 fixation in two out of the three varieties used in Romania. One variety, F 74-412, however, derived slightly higher amounts of N2 from fixation at 100kg N/ha rate than when fertilized with 20 kg N/ha. In greece, Chippewa, Williams and Amsoy-71 inoculed with a Nitragin inoculant fixed similar amounts of N2 at both 20 and 100 kg N/ha fertilizer rates. However, when Chippewa and Williams were inoculated with another, locally-isolated rhizobium strain, N2 fixation was substantially depressed at the higher N rate.
650 $aBradyrhizobium Japonicum
650 $aMatéria Seca
650 $aSoja
653 $aCultivar
653 $aDry matter yield
653 $aSoybean
653 $aVariety
700 1 $aHERA, C.
700 1 $aDOUKA, C.
773 $tIn: INTERNATIONAL SYMPOSIUM ON GENETIC ASPECTS OF PLANT MINERAL NUTRITION, 2, 1985, Madison. Genetics aspects of plant mineral nutrition: proceedings. Dordrecht: Martinus Nifhoff, 1987. p.511-522
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Registro original: |
Embrapa Soja (CNPSO) |
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