Pengaruh Penambahan Jeroan Ikan Cakalang dan Lama Fermentasi terhadap Mutu Pupuk Organik Cair

Abstract

Pupuk organik cair berbasis jeroan ikan cakalang merupakan pemanfaatan hasil samping yang dibuat sebagai salah satu solusi penanganan limbah dari industri pengolah perikanan. Penelitian ini bertujuan menentukan pengaruh penambahan jeroan ikan cakalang dan waktu fermentasi terbaik terhadap mutu pupuk organik cair. Penelitian dilakukan dengan uji coba penambahan jeroan ikan cakalang dan waktu fermentasi yang berbeda dengan analisis kadar unsur hara, pH, Na, Cl, dan mikroba patogen. Hasil penelitian menunjukkan bahwa pupuk organik cair mengandung pH 4,07–6,54; C-organik 0,69–2,10%; N-total 0,13–0,45%; P 0,03–0,09%; K 0,08–0,11%; rasio C/N 3,82–8,14; Na 627,42–1820,77 ppm; Cl 796,07–2305,48 ppm; dan mikroba patogen (Salmonella sp. dan Escherichia coli) 0 MPN/g. Hasil analisis menunjukkan perlakuan terbaik terdapat pada penambahan jeroan 16% dengan 15 hari fermentasi karena memiliki kandungan hara makro yang tinggi, juga kadar Na dan Cl yang rendah.

Liquid organic fertilizer based on skipjack tuna offal is a utilization of by-products made as one of the solutions for handling waste from the fisheries processing industry. This study aims to determine the effect of adding skipjack tuna offal and the best fermentation time on the quality of liquid organic fertilizer. The study was conducted by testing the addition of skipjack tuna offal and different fermentation times with analysis of nutrient levels, pH, Na, Cl, and pathogenic microbes. The results showed that liquid organic fertilizer contains pH 4.07–6.54; C-organic 0.69–2.10%; N-total 0.13–0.45%; P 0.03–0.09%; K 0.08–0.11%; C/N ratio 3.82–8.14; Na 627.42–1820.77 ppm; Cl 796.07–2305.48 ppm; and pathogenic microbes (Salmonella sp. and Escherichia coli) 0 MPN/g. The analysis results showed that the best treatment was the addition of 16% offal with 15 days of fermentation because it has a high macro nutrient content, as well as low Na and Cl levels.