Analisis Ca +2 Mg+2 Dan So+2 Dari Pengomposan Tandan Kosong Kelapa Sawit Menggunakan Limbah Cair Pabrik Kelapa Sawit Dan Em (Effective Microorganism )

Abstract

The escalating areas of palm oil plantation in Riau Province in 2005 due to the demand for crude palm oil that will also producer wastes. Its solid waste (empty bunch),its liquid waste from waste water treatment and EM can be useful as organic fertilizer by composting them for a period about 45 days. To evaluate the quality of compost such a calsium, magnesium, and sulfur are determined after 10, 15, 20, 25, 30, 35,40, and 45 days of incubation. The result show that there is the increment of Ca and Mg contents but not for S because sulfur in the form S04'^ could be oxidized to develop SO2 and reduce to H2S. The highest Ca obtained after 30 days, Mg obtained after 20 days, and S obtained after 10 days incubation period. For Ca is 7,81 % (w/w), Mg is 1,57 % (w/w), and S is 3,68 % (w/w). From the resuh, shows that the compost can be used as organic fertilizer for the need of Ca, Mg, and S for plants and corps in Riau Province areas.