The study was made in Manfla. Optimization of sowing calendar corn and Bambara groundnut (Vigna subterranea) was made. This study aimed to evaluate the effect of corn seeding calendar on agronomic parameters of voandzou. A series of pure cultures device of offset and simultaneous planting seedling was taken. These provisions are voandzou sown 15 days before maize (M15JAPV), voandzou sown 30 days before maize (M30JAPV), voandzou sown 15 days after maize (M15JAVV) voandzou sown 30 days after maize (M30JAVV) and simultaneous sowing. The production of each association system was evaluated on the basis of measurements on the yield and yield components. Thus, it is noted that the most important voandzou production is obtained when voandzou sown 15 and 30 days before maize maize.