Co-inoculation rhizobia and Bacilus subtilis in cowpea and Leucaena: effects on nodulation, [N.sub.2] fixation and plant growth/Coinoculacao rizobio e Bacillus subtilis em feijao-caupi e leucena: efeito sobre a nodulacao, a fixacao de [N.sub.2] e o crescimento das plantas

This research aimed to evaluate co-inoculation of Bradyrhizobium and Bacillus subtilis on nodulation, N fixation and growth of cowpea (Vigna unguiculata) and leucaena (Leucaena leucocephala) grown in a red Oxisol. Treatments consisted by: a) control; b) NPK; c) inoculation with Bradyrhizobium + PK;...

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Bibliographic Details
Published in:Ciência rural 2010-01, Vol.40 (1)
Main Authors: de Araujo, Ademir Sergio Ferreira, Carneiro, Romero Francisco Vieira, Bezerra, Antonio Aecio Carvalho, de Araujo, Fabio Fernando
Format: Article
Language:Spanish
Subjects:
Chlorophyll
Legumes
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Summary:This research aimed to evaluate co-inoculation of Bradyrhizobium and Bacillus subtilis on nodulation, N fixation and growth of cowpea (Vigna unguiculata) and leucaena (Leucaena leucocephala) grown in a red Oxisol. Treatments consisted by: a) control; b) NPK; c) inoculation with Bradyrhizobium + PK; d) co-inoculation Bradyrhizobium + Bacillus subtilis + PK. There was an increase in nodulation of cowpea with co-inoculation. The shoot dry weight, N accumulation and chlorophyll were higher in both co-inoculated and fertilized (NPK) treatments. For leucaena, there were not differences between NPK, inoculated and co-inoculated treatments. The dry weight roots of cowpea and leucaena increased with co-inoculation. The co-inoculation Bradyrhizobium and Bacillus subtilis favored the increase in nodulation of cowpea and it has potential to increase biological [N.sub.2] fixation and plant growth.
ISSN:0103-8478