Evaluasi Kualitas Bokashi Feses Domba yang diperkaya Legum Indigofera zollingeriana terhadap Pertumbuhan dan Produksi Brachiaria humidicola

Abstract

Penelitian ini bertujuan mengevaluasi kualitas bokashi berbahan dasar feses domba yang diperkaya legum Indigofera zollingeriana serta pengaruhnya terhadap pertumbuhan dan produksi Brachiaria humidicola. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) 6 perlakuan dan 4 ulangan, dan terdiri atas dua tahapan. Tahap pertama, yaitu K (feses domba 100% tanpa fermentasi), P0 (feses domba 100% difermentasi), dan P1–P4 dengan proporsi feses domba berturut-turut 70%, 65%, 60%, dan 55%, serta penambahan legum indigofera masing-masing 5%, 10%, 15%, dan 20%; P1–P4 mengandung sisa pakan 5%, sekam bakar 18%, dan kapur 2%. Tahap kedua, yaitu NPK (urea, SP-36, dan KCl) serta P0-P4 dengan formulasi bokashi yang sama seperti pada tahap pertama. Hasil penelitian ini menunjukkan bokashi memiliki kualitas yang ideal. Penambahan I. zollingeriana berpengaruh nyata terhadap tinggi tanaman dan jumlah anakan (p<0,05), tetapi tidak terhadap panjang dan jumlah stolon, serta produksi biomassa. Simpulan penelitian ini adalah bokashi feses domba 100% difermentasi (P0) dan penambahan legum indigofera 10% (P2) merupakan perlakuan terbaik dengan menghasilkan produksi B. humidicola yang setara dengan NPK. Kata kunci: hijauan pakan, indigofera, limbah peternakan, nitrogen, pupuk organik.

This study aimed to evaluate the quality of bokashi made from sheep manure enriched with the legume Indigofera zollingeriana and its effects on the growth and production of Brachiaria humidicola. The study used a Completely Randomized Design (CRD) with 6 treatments and 4 replications and consisted of two stages. The first stage consisted of K (100% unfermented sheep manure), P0 (100% fermented sheep manure), and P1–P4 containing 70%, 65%, 60%, and 55% sheep manure, respectively, with 5%, 10%, 15%, and 20% Indigofera, respectively; P1–P4 also contained 5% feed residue, 18% rice husk charcoal, and 2% lime. The second stage consisted of NPK (urea, SP-36, and KCl) and P0–P4 with the same bokashi formulations as in the first stage. The results showed that the bokashi had ideal quality. The addition of I. zollingeriana significantly affected plant height and tiller number (p<0.05), but did not affect stolon length, stolon number, or biomass production. The study concluded that 100% fermented sheep manure bokashi (P0) and bokashi enriched with 10% Indigofera (P2) were the best treatments, producing B. humidicola biomass comparable to NPK. Keywords: forage, indigofera, livestock waste, nitrogen, organic fertilizer.