ANALISIS KUALITAS KOMPOS DARI CAMPURAN LIMBAH AMPAS SAGU, KOTORAN AYAM DAN SERBUK GERGAJI HASIL FERMENTASI DENGAN EM-4

Abstract

Sago (sago Metroxylon Rottb.) can be used for food, housing and industrial raw materials. A byproduct of the use of starch in the form of solid waste, which is already used in a simple to feed livestock and composting. Traditionally, sago waste composting takes a long time about 3 months with varying quality. Research on optimum composting time necessary for effective use of raw materials Microorganism 4 (EM-4) as a starter. In this research, the composition of the raw material consists of sago pulp, chicken manure and sawdust in the ratio (1:2:1) fermented with EM-4 on time variations 0, 5, 10, 15, 20 and control of well water at 0 and of 20 days. Analysis of the quality parameters of fermented compost consists of the availability of nutrients N, P, K, organic C and C/N ratio. They are compost quality parameters. The method used is the determination of N-nitric acid with phenol disulfonic acid pickling, P by using Olsen, K using flame photometry, C-organic by using Willey Black, N-total with kedjhal and C/N ratio by mathematical methods. The results showed that the optimum level for N, P, K, organic C and C/N ratio of composting make different on composting day. From fermentation with optimum level of EM-4 N-nitrate, C-organic and C/N ratio was obtained as the day 5 which are 0.1496%, 3.0229%, and 10.9854. The optimum levels for N-total, P and K are in day 10 which are 0.2768%, 0.1590% and 0.98%. Well water as control has increased all parameters at the day 20. The changes which occur is due to the lack of activity of microorganism that works on the composting. Composting sago pulp, chicken manure and sawdust fermented with EM-4 delivers quality compost in the range of 5- 10 days. Composting can be used as organic fertilizer because it is in the range of C/ N ratio of humus (10-20)