Analisis Potensi Penggunaan Kotoran Kerbau sebagai Pupuk Organik pada Sistem Pertanian Bawang Merah di Desa Pasir, Mijen, Demak

Abstract

The use of artificial fertilizers in onion farming has contributed to soil quality degradation. Incorporating organic materials such as buffalo feces can enhance soil nutrient content, particularly carbon (C) and nitrogen (N). This community service initiative aimed to evaluate the potential of buffalo feces as an organic fertilizer for onion farming systems in Pasir Village, Mijen, Demak. The activity was conducted between April and July 2024. The buffalo farming system in the area was assessed, and 500-gram samples of fresh and dried buffalo feces were collected and analyzed at the Faculty of Animal Science, IPB University. The analyses was included the dry matter (DM), nitrogen (N), and carbon (C) content. The results showed that fresh buffalo feces contained 17.3% DM, 1.9% N, and 30% C, while the C/N ratio ranged between 15 and 18. In Pasir Village, Mijen, the buffalo population is approximately 408 heads. Based on these findings, the total annual feces production is estimated at 7,446 tons, with 1,266 tons of dry matter and 24 tons of nitrogen.  These results highlight the significant potential of buffalo feces as an organic fertilizer to support sustainable onion farming. The application of buffalo feces can improve soil fertility while optimizing the C/N ratio, promoting environmentally friendly agricultural practices and reducing dependence on synthetic fertilizers. Further studies are suggested to explore field-level implementation and long-term impacts on soil health and crop productivity.