ABSTRACT This study was conducted using a completely randomized factorial design (CRD) consisting of two factors. The first factor was NPKMg fertilizer with three levels: N1: 30.5 g, N2: 36.5 g, and N3: 42.5 g per polybag; the second factor was Petrobio biofertilizer with three levels: P1: 20 g, P2: 40 g, and P3: 60 g per polybag. The parameters observed included the increase in plant height, …