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All Journal Abimanyu: Journal of Community Engagement
Maria Monica Sianita Basukiwardojo
Universitas Negeri Surabaya
Arts Economics, Econometrics & Finance Education Engineering Social Sciences

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Pupuk Organik Cair Kombinasi Kotoran Ternak dan Batang Pisang sebagai Solusi Pengendalian Pencemaran Lingkungan Limbah Hasil Limbah Ternak Samik Samik; Nita Kusumawati; Pirim Setiarso; Maria Monica Sianita Basukiwardojo; I Gusti Made Sanjaya; Nur Hayati
Abimanyu : Jornal of Community Engagement Vol 7 No 1 (2026): February 2026 (In Press)
Publisher : Universitas Negeri Surabaya

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Abstract

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.
Co-Authors I GUST MADE SANJAYA Nita Kusumawati Nur Hayati Pirim Setiarso Samik Samik