PEMBUATAN PUPUK ORGANIK CAIR DARI SAMPAH ORGANIK RUMAH TANGGA DENGAN PENAMBAHAN BIOAKTIVATOR EM4 (EFFECTIVE MICROORGANISMS)

Manufacture of liquid organic fertilizer especially from organic garbage of household with addition of Bioactivator EM4 (Effective Microorganisms) aims to determine the influence of duration of the process of making a liquid organic fertilizer to the content of N, P, K, and C in a liquid organic fertilizer, and determine the influence of the addition of bioactivator EM4 in the process of making a liquid organic fertilizer to the content of N, P, K, and C in a liquid organic fertilizer. The organic garbage of household is separated from inorganic garbage. Then prepared bioaktivator EM4 in sprayer. Organic garbage is cutted entered into composter, then biocktivator sollution sprayed into composter. Intake of sample done pursuant to time variable 11, 14 and 17 days and also variation of addition of amount of bioactivator counted 5 mL, 10 mL, and 15 mL. Parameter which in test are nitrogen (N), phospor (P), kalium (K), and carbon (C). The results indicate that the process of making a liquid organic fertilizer with time variation and addition variation of EM4 effective in increasing the content of N, P, and C. Where the largest value of the content of N, P on day 17th of 0.205% and 0.0074% respectively, while the largest content of C at day 14th of 0.336%. While the addition of volume EM4, the largest content of N, P, C is on addition of volume EM4 of 15 mL at 0.191%, 0.128% and 0.382% respectively. The longer process of composting and the greater addition of volume EM4 tends to reduce the content of K.