Inoculation efficiency in Inga edulis with diffeent Bradyrhizobium strains on Oxisol from Amazonia.
2000
SILVA JUNIOR, J. P. DA | SOUZA, L. A. G. | JOSE PEREIRA DA SILVA JUNIOR, CPAA.
This glasshouse study aims to evaluate the inoculation efficiency in inga with 23 different Bradyrhizobium strains, on a Oxisol (Latossolo Amarelo), in Manaus-AM (Brasil) in six months after slash-and-burn and the evaluation at 120 days after sowing. The following parameters were measured in inga seedlings: weight of aboveground dry matter, number and weight of nodules and the concentration of nodules and foliar nitrogen concentration. The number and weight of nodules and the concentration of nitrogen were significantly different between inoculation with different strains. However, the treatments did not have significant effect on growth of inga. The inoculation with strains 529-C9B, 529-C6B and 529-B6A had the best performance. These strains showed good potential to use in inoculum production for inga. No nodulation was found in treatments without inoculation, indicating that it is necessary to use an inoculation technique under the described conditions of land use.
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