The potato cultivar was Marfona that is extensively grown in the region. The experiment was a factorial with three
factors arranged in a randomized complete block design with four replications. Factors including biofertilizer two
levels: control (no tuber inoculation) and tuber inoculated with a Nitragin, that is a biofertilizer containing Azospirillum
Spp and Azotobacter Spp. urea two levels: control (0kg/ha) and application (500 kg/ha) and the HB-101 three levels:
non-use, once sprayed and twice sprayed.