Application of Bacillus subtilis for baby corn seed production

Abstract

The objective of this study was to select highly effective Plant Growth Promoting Rhizobacteria(PGPR) for maize (Pacific 283) cultivation. The PGPR were isolated from maize rhizosphere from Chiang Mai,Lampang, Nakhon Sawan, Saraburi and Nakhon Ratchasima provinces. From 153 isolates, the isolates SUT2 andSUT3 showed the highest plant growth promotion from pot experiments. The true isolates selected for further studyin the field experiment were mixed with the 25% and 50% reduction from the recommended chemical fertilizer rate.The results showed that the plant yield and biomass reduced amount of chemical fertilizer mixing with isolate SUT3of was not significantly different from these of recommended chemical fertilizer rate. In addition, the isolate SUT3was identified as one closely related to Bacillus subtilis sp., and there was reasonable evidence to show this isolateSUT3 could reduce the amount of chemical fertilizer used in maize field.