Karakteristik Bokashi Kombinasi Residu Garam Sea Lettuce dan Sekam Menggunakan Mikroorganisme Lokal Jeroan Kakap Merah

Abstract

Residu garam rumput laut dapat dimanfaatkan kembali dalam bidang non pangan salah satunya pada pembuatan pupuk organik karena rumput laut memiliki unsur hara nitrogen, fosfor dan kalium yang dibutuhkan tanaman serta zat pemacu tumbuh (ZPT) mencakup (auksin, sitokinin, dan giberelin). Penelitian ini bertujuan menentukan formula terpilih pupuk bokashi yang sesuai standar dengan rasio kombinasi bahan residu garam sea lettuce dan sekam dengan penambahan mikroorganisme lokal jeroan ikan kakap merah. Penelitian ini terdiri dari penumbuhan mikroorganisme lokal, pembuatan pupuk bokashi, analisis kandungan unsur hara makro yaitu rasio C/N, C-organik, kadar air, pH, N-total, P2O5, K2O, dan NPK pada mikroorganisme lokal jeroan ikan kakap merah dan pupuk bokashi. Hasil penelitian pupuk bokashi kombinasi residu garam sea lettuce dan sekam didapatkan formula terpilih sesuai standar yaitu rasio C/N 25,35, C-organik 42,33%, kadar air 26,84%, pH 8,35, N-total 1,68%, P2O5 0,27%, K2O 1,93%, dan NPK 3,87%. Hasil analisis menunjukkan bahwa formula terpilih dan sesuai standar didapatkan pada perlakuan F2 yaitu kombinasi residu garam sea lettuce dan sekam (27:36%), 3% dedak, dan 34% MOL.

Seaweed salt residue can be reused in the non-food sector, one of which is in the manufacture of organic fertilizer, as seaweed contains the necessary nutrients for plants, including nitrogen, phosphorus, and potassium, as well as growth-promoting substances (ZPT), such as auxins, cytokinins, and gibberellins. This research aims to determine the selected bokashi fertilizer formula that meets the standards, utilizing a combination ratio of sea lettuce salt residue and husk, with the addition of local red snapper fish microorganisms. This research involves growing local microorganisms, producing bokashi fertilizer, and analyzing the content of macronutrients, including C/N ratio, C-organic, moisture content, pH, N-total, P2O5, K2O, and NPK in local microorganisms derived from snapper offal and bokashi fertilizer. The results of research on bokashi fertilizer, combining sea lettuce salt residue and rice husks, yielded a selected formula that meets the standards, namely a C/N ratio of 25.35, C-organic content of 42.33%, moisture content of 26.84%, pH of 8.35, N-total of 1.68%, P2O5 of 0.27%, K2O of 1.93%, and NPK of 3.87%. The analysis results indicate that the selected formula meeting the standards was obtained in treatment F2, which combines sea lettuce salt residue and rice husk (27:36%), 3% bran, and 34% MOL.