Pupuk Organik Cair Kombinasi Kotoran Ternak dan Batang Pisang sebagai Solusi Pengendalian Pencemaran Lingkungan Limbah Hasil Limbah Ternak

Samik Samik (Universitas Negeri Surabaya)
Nita Kusumawati (Universitas Negeri Surabaya)
Pirim Setiarso (Universitas Negeri Surabaya)
Maria Monica Sianita Basukiwardojo (Universitas Negeri Surabaya)
I Gusti Made Sanjaya (Universitas Negeri Surabaya)
Nur Hayati (Universitas Negeri Surabaya)

Abimanyu: Journal of Community Engagement
Vol 7 No 1 (2026): February 2026 (In Press)

Livestock manure is a resource that is rich in nutrients, but can also cause environmental pollution if not managed properly. This research aims to make liquid organic fertilizer from cow manure with the addition of banana stem. The methods used are aerobic composting and anaerobic digestion. The results show that liquid organic fertilizer has a pH of 5.9, N 4.9%, C 30.2%, P2O5 6.8%, and K2O 8.1%. Overall, the nutritional content is in accordance with the standards given and has a good impact on plant growth. Furthermore, this research also analyzed the content of heavy metals such as Cd, Pb, Hg and As in liquid organic fertilizer. The results show the respective values of Cd 1.5 mg/kg, Pb 2.1 mg/kg, Hg 0.3 mg/kg, and As 0.6 mg/kg. The heavy metal content in this liquid organic fertilizer is still below the threshold set by SNI 2803:2012 and SNI 4958:2015. This shows that liquid organic fertilizer is safe to use and has no potential to pollute the soil and plants. Apart from that, this liquid organic fertilizer can be used as an economical, environmentally friendly and efficient fertilizer to increase plant productivity.