Co-inoculation of Anabaena cylindrica with Azospirillum brasilense increases grain yield of maize hybrids

Freddy Zambrano Gavilanes, Diva Souza Andrade, Claudemir Zucareli, Eduardo Hélder Horácio, João Yúnes, André Prechlak Barbosa, Luiz Abílio Ribeiro Alves, Luz García Cruzatty, Naga Raju Maddela, María de Fátima Guimarães