presença e eficiência de rhizobium japonicum em solos cultivados ou não com soja, no estado desão paulo presence and efficiency of rhizobium japonicum in soils previously cultivated and never cultivated with soybeans
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ID: 243404
1976
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Abstract
Foi conduzido um ensaio em solução nutritiva sem nitrogênio, com condições assépticas, usando-se como inoculantes para as plantas amostras de solos LR e LB coletadas em locais já cultivados e não com soja, com o objetivo de verificar a presença de Rhizobium capaz de nodular o cultivar santa-rosa. Verificou-se que solos ainda não cultivados com a leguminosa são desprovidos de Rhizobium japonicum, e também que essa bactéria é encontrada em solos previamente cultivados, fixando nitrogênio em quantidades equivalentes à de uma estirpe selecionada.
An experiment was carried out in Leonard jars using Latosolic B Terra Roxa and Dark Red Latosol soil samples as inoculum to detect the presence and efficiency of rhizobia able to nodulate cultivar Santa-Rosa of soybean (Glycine max. (L) Merrill). Results have shown that no rhizobia were present in those soils. Rhizobium japonicum with efficiency comparable to a selected strain survived in the same soils, when they were previously cropped with inoculated soybeans.
An experiment was carried out in Leonard jars using Latosolic B Terra Roxa and Dark Red Latosol soil samples as inoculum to detect the presence and efficiency of rhizobia able to nodulate cultivar Santa-Rosa of soybean (Glycine max. (L) Merrill). Results have shown that no rhizobia were present in those soils. Rhizobium japonicum with efficiency comparable to a selected strain survived in the same soils, when they were previously cropped with inoculated soybeans.
| Reference Key |
lopes1976bragantiapresena
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|---|---|
| Authors | ;Eli Sidney Lopes;Antônio Roberto Giardini;Romeu A. S. Kiihl |
| Journal | revista espanola de salud publica |
| Year | 1976 |
| DOI |
10.1590/S0006-87051976000200013
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| URL | |
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