1. Acetylene reduction (nitrogen fixation) associated with corn inoculated with Spirillum;Barber;Appl. Environ. Microbiol.,1976
2. Measurement of nitrogen fixation by direct means;Bergersen,1980
3. Nitrogen fixing bacteria in nonleguminous crop plants;Dobereiner,1987
4. Ecological and physiological studies on the genus Azospirillum from the rhizosphere of maize and rice plants;El-Komy,1992
5. Response of nonleguminous plants to root inoculation with free living diazotropic bacteria;Gaskins,1979