Situmeang, Y. P.; Adnyana, I. M.; Netera Subadiyasa, I. N.; Merit, I. N. Effect of Dose Biochar Bamboo, Compost, and Phonska on Growth of Maize (Zea Mays L.) in Dryland. Int. J. Adv. Sci. Eng. Inf. Technol. 2015, 5, 433-439.