Agronomic efficiency of a new rhizobial inoculant formulation for use in cowpea

Authors

  • Elson Barbosa da Silva Júnior UFRRJ
  • Paulo Ivan Fernandes Júnior EMBRAPA Semi árido
  • Paulo Jansen de Oliveira ufrrj
  • Norma Gouvêa Rumjanek Embrapa Agrobiologia
  • Robert Michael Boddey Embrapa Agrobiologia
  • Gustavo Ribeiro Xavier Embrapa Agrobiologia

DOI:

https://doi.org/10.1590/S1678-3921.pab2012.v47.11344

Keywords:

Vigna unguiculata, biological nitrogen fixation, inoculation, polymer, inoculant technology

Abstract

The objective of this work was to evaluate the agronomic efficiency of the polymer formulation
IPC 2.2 as a carrier for inoculation in cowpea. Cell survival at 180 days storage was evaluated. The polymer
formulation was compared with peat and liquid carriers and with nitrogen rates of 50 and 80 kg ha‑1 N and
absolute control, in a field experiment. The formulation IPC 2.2 kept a cell concentration higher than 109 g‑1,
after 180 days and, in the field experiment, it provided a yield higher than that of the treatment absolute and
equal to those of the nitrogen treatments and to the peat and liquid carriers.

Author Biography

Gustavo Ribeiro Xavier, Embrapa Agrobiologia

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Published

2012-03-22

How to Cite

da Silva Júnior, E. B., Fernandes Júnior, P. I., de Oliveira, P. J., Rumjanek, N. G., Boddey, R. M., & Xavier, G. R. (2012). Agronomic efficiency of a new rhizobial inoculant formulation for use in cowpea. Pesquisa Agropecuaria Brasileira, 47(1), 138–141. https://doi.org/10.1590/S1678-3921.pab2012.v47.11344

Issue

v.47, n.1, jan. 2012

Section

SCIENTIFIC NOTES