Nodulation of Trifolium subterraneum L. by Introduced Rhizobia in Southwest Oregon Soils1
- Charles Hagedorn2
The establishment of Trifolium subterraneum L. in response to inoculation and fertilization treatments was determined at five field sites in southwest Oregon. Both strains of Rhizobium trifolii (TA1 and C6) were capable of successful nolulation of subclover (c. v. Mt. Barker) at all sites although differences in performance of the strains occurred at three locations. Fertilization (P, S, and Mo) significantly increased the overall nodulation of the plants as well as the proportion of nodules occupied by the inoculum strains. Both plant dry weights and total N levels reflected an additive effect of inoculation and fertilization. Results indicated that subclover appeared to be a suitable crop for hill pastures in western Oregon and, with adequate fertilization and a suitable inoculum, the subclover and the amended rhizobia can become established and productive during the first growing season.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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