Pengaruh Kapur terhadap Pelepasan Gas H2S dan Unsur Hara pada Manur Ayam Petelur

Abstract

Air pollution caused by chicken manure is considered to be a disturbing environmental problem. The odor caused by the manure might be reduced with lime powder. The chicken manure examined was layer type which were given four different concentrations of lime: 0 (control), 1, 3, and 5%. Examination included the change of moisture content and pH plus H2S released from chicken manure during 14 days with every other days of determination. Nitrogen, phosphorus, and potassium in chicken manure were also determined on the first and 30th day. The lime administration affected the change of moisture content, pH, and H2S release. The result from variance analysis and Duncan test showed that lime with the concentrations of 1, 3, and 5% affected significantly the change of moisture content on the 4th and 8th day, the change of pH on day-10, and the decrease of H2S release on the 4th day. The greatest content of nitrogen, phosphorus, and potassium on the 1st day in chicken manure was found at 5% concentration of lime which were 2.68, 0.59, and 0.22%, respectively. The greatest content of nitrogen, phosphorus, and potassium on the 30th day was found at 5% concentration of lime as well: 1.77, 0.56, and 0.20%, respectively.