Shallot (Allium ascalonicum L.) is one of the leading horticultural crops that has a high value because it is widely consumed and used as a food additive in Indonesia and in several countries in the world. Efforts need to implement for the increase of shallot production, one of which is by providing organic fertilizer. Provision of organic fertilizers also aims to reduce the use of inorganic fertilizers in cultivated plants. This study aims to determine the effect of cow manure combined with the addition of husk charcoal biochar on the growth and yield of shallot plants. The research design used was a randomized block design consisting of two factors, namely the administration of cow manure which consisted of four stages; P0 (without cow manure); P1 (31 gr manure cow); P2 (42 gr cow manure); P3 (52 gr cow manure) and rice husk biochar consisting of three levels; B0 (0 gr husk charcoal biochar); B1 (42 gr biochar husk charcoal); and B2 (84 gr biochar husk charcoal). The results showed that the administration of cow manure had a significant effect on the variable total leaf length at 42 hst and fresh weight of the tubers, the administration of husk charcoal biochar had also a significant effect on the tuber diameter and root length variables, and the interaction of the treatments of the administration of cow manure and charcoal biochar Husk significantly affects the variable fresh weight of shallot (Allium ascalonicum L.) bulbs.