Effects of inoculation with Bradyrhizobium and urea application on nitrogen fixation and growth of yam bean (Pachyrhizus erosus) as affected by phosphorus fertilisers in an acid soil
Cruz, G.N.; Stamford, N.P.; Silva, J.A.A.; Chamber Perez, M.
Tropical Grasslands 31(6): 538-542
1997
ISSN/ISBN: 0049-4763 Accession: 003119012
A glasshouse pot-experiment was conducted to evaluate the effects of Bradyrhizobium strains (NFB 442 and NFB 450, seed-inoculated) and N fertilizer applied as urea at different levels (0, 50, 100 and 200 kg/ha N) on nodulation, N2 fixation, P and N uptake and dry matter production of yam bean grown in an infertile soil, as affected by different soluble P fertilizers (single superphosphate-SSP; triple superphosphate-TSP; and fosmag thermophosphate-FTP) applied at 70 kg/ha P.