Indonesia Conference Directory

The study evaluated the quality of organic fertilizer on different ratio of cow manure and laying hens manure. The study used a completely randomized design with five treatments, such as T0 (100% cow manure), T1 (75% cow manure and 25% laying hens manure), T2 (50% cow manure and 50% laying hens manure), T3 (25% cow manure and 75% laying hens manure) and T4 (100% laying hens manure). Parameters observed in this study were contain of nitrogen (N), phosphor (P), potash (K), carbon (C) organic, C/N ratio, temperature and pH. The results showed the ratio of cow manure and laying hens manure had a significant effect (P<0.05) on the content of N, P, and K, C organic and C/N ratio, but no significant effect (P>0.05) on pH. The fertilizer with laying hens manure had the highest (P<0,05) contain of N (1,57%) and K (1,31%, but the lowest of C/N (14,67).