This study was aimed to elucidate the effect of the application of urea fertilizer and goat manure on some soil chemical properties and yield of a green mustard plant (Bressicca juncea L). This study was conducted with a randomized block design consisting of two factors. The first factor was the application of goat manure (K) consisting of three levels, ie (K1) 1 t goat manure ha-1,(K2) 1.5 t goat manure ha-1, and (K3) 2 t goat manure ha-1. The second factor was the application of urea fertilizer consisting of two dose levels, ie (U1 75 kg) urea fertilizer ha-1, and (U2) 100 kg urea fertilizer ha-1. The measured parameters were soil organic-C content, soil total N content, and fresh weight of the green mustard plant. Results of the study showed that the combination of 2 t goat manure ha-1 and 100 kg urea fertilizer ha-1 was the best treatment that significantly affected soil organic-C content, soil total N, soil C/N r atio, and yield of fresh weight of the mustard green plant.