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| DOI: | 10.1016/j.soilbio._|n_Pending_DOI_Completion |
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| Web URL(s): | http://www.sciencedirect.com/science/journal/00380717
Last checked: 11/03/2015
Notes: Pending URL completion |
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| Publication Type:
| Refereed |
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| Author(s): | De-Polli, H.;
Matsui, E.;
Dobereiner, J.;
Salati, E. |
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| Author Affiliation: | Centro de Energia Nuclear da Agricultura, Piracicaba, SP, Brazil |
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| Title: | Confirmation of nitrogen fixation in two tropical grasses by 15N2 incorporation |
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| Source: | Soil Biology & Biochemistry. 1977, p. 119-123. |
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| Publishing Information: | Amsterdam, The Netherlands: Elsevier |
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| Keywords: | TIC Keywords: Nitrogen fixation; Digitaria eriantha; Paspalum notatum; Isotopes; Nitrogen
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| Geographic Terms: | Brazil |
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| Abstract/Contents: | Intact soil cores containing plants of Paspalum notatum or Digitaria decumbens were selected with the acetylene reduction method, and then exposed to 15N2 to confirm nitrogen fixation in tropical grass-bacteria associations. In a preliminary experiment with P.notatum 15N2 incorporation was slow but progressive during 24 h in roots but translocation to rhizomes and leaves ceased after 17 h. With improved assay chambers, enrichments of 0.151 and 0.563 15N atom % excess were obtained in roots of D.decumbens cv. transvala and P.notatum systems respectively, after 3 days. Enrichments in rhizomes were similar to those of roots; however in the leaves only 8% of root enrichment was observed. The addition of sucrose to the soil doubled N2 fixation in roots in both species but did not result in increased incorporation into the leaves of P.notatum. |
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| Language: | English |
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| References: | 12 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
De-Polli, H., E. Matsui, J. Dobereiner, and E. Salati. 1977. Confirmation of nitrogen fixation in two tropical grasses by 15N2 incorporation. Soil Biol. Biochem. p. 119-123. |
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| DOI: 10.1016/j.soilbio._|n_Pending_DOI_Completion |
| Web URL(s):
http://www.sciencedirect.com/science/journal/00380717
Last checked: 11/03/2015
Notes: Pending URL completion |
| 
MSU catalog number: b2217194 |
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