This study aims to determine the effect of bioferlizer application on vegetatif growth and yield of sugarcane (Saccharum officinarum L.) and its optimal concentration for sugarcane plants. This research used a Randomized Group Design (RGD) with 1 faktor, namely biofertilizer. The treatments used consisted of P1 (Inorganik fertilizer/control), P2 (2 kg/l Biofertilizer), P3 (3 kg/l Biofertilizer)…