Abstract
The use of corn cob agricultural waste as a material for making Biochar is an alternative to the abundant utilization of corn cob, where until now, corn cob waste has become waste piled up and burned in corn sheller refineries without being utilized. This study aims to evaluate the vegetative Growth of mini elephant grass given different doses of corn cob biochar. This research was conducted experimentally using the complete randomized design (CRD) method, five treatments, and four replications, namely treatment P0 = control; P1 = corn cob biochar 5% polybag-1; P2 = Biochar 10%; P3 = Biochar 15%; and P4 = Biochar 20%. Parameters observed were plant height, number of tillers, number of leaves, and fresh and dry weight. The results showed that the application of corn cob biochar had a good effect on the Growth of plant height, number of tillers, number of leaves, and fresh and dry weight. The best results were obtained by applying 10% corn cob biochar, which produced an average number of tillers 238% more than the control, the number of leaves 275% more than the control, and fresh weight 394% higher than the control treatment.
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