Pemanfaatan Limbah Blotong Sebagai Pupuk Organik Padat di PT PG Rajawali II Unit PG Sindanglaut Cirebon

Abstract

PT PG Rajawali II Unit PG Sindanglaut menghasilkan limbah blotong yang belum ada pengelolaan. Salah satu upaya pengelolaan dengan menjadikan pupuk organik. Tujuan penelitian mengidentifikasi karakteristik fisik pupuk organik blotong dan menganalisis pengaruh pupuk organik blotong terhadap pertumbuhan tanaman. Metode penelitian meliputi pembuatan pupuk secara anaerob selama 28 hari dengan komposisi P1 (blotong murni 100%), P2 (limbah blotong 50% kotoran sapi 50%), dan P3 (limbah blotong 50% abu ketel 50%). Uji pengaruh pupuk organik blotong terhadap pertumbuhan tanaman dengan metode Rancangan Acak Kelompok (RAK) Non Faktorial dengan taraf perlakuan M0 (tanah 1 kg), M1 (tanah 500 gr : pupuk P1 500 gr), M2 (tanah 500 gr : pupuk P2 500 gr), dan M3 (tanah 500 gr : pupuk P3 500 gr). Hasil penelitian karakteristik fisik pupuk organik blotong sudah sesuai dengan literatur. Berdasarkan hasil uji pengaruh pada pertumbuhan tanaman menunjukan adanya pengaruh yang signifikan terhadap tinggi tanaman dan jumlah daun. Hasil analisa kandungan pupuk blotel pada parameter C–organik, unsur hara makro (N total P2O5 K2O) dan pH sudah sesuai, namun pada parameter rasio C/N belum sesuai dengan SNI 7763:2018.

PT PG Rajawali II PG Sindanglaut Unit produces filter cake waste which has no management. One management effort is to make organic fertilizer. The aim of the research is to identify the physical characteristics of filter cake organic fertilizer and analyze the effect of filter cake organic fertilizer on plant growth. The research method includes making fertilizer anaerobically for 28 days with the composition P1 (100% pure filter cake), P2 (50% filter cake waste 50% cow dung), and P3 (50% filter cake waste 50% boiler ash). Test the effect of organic filter cake fertilizer on plant growth using the Non Factorial Randomized Block Design (RAK) method with treatment levels M0 (1 kg soil), M1 (500 gr soil : 500 gr P1 fertilizer), M2 (500 gr soil : 500 gr P2 fertilizer ), and M3 (500 gr soil : 500 gr P3 fertilizer). The results of research on the physical characteristics of organic filter cake are in accordance with the literature. Based on the results of the influence test on plant growth, it shows that there is a significant influence on plant height and number of leaves. The results of the analysis of the blotter fertilizer content on the C-organic parameters, macro nutrients (total N P2O5 K2O) and pH are appropriate, but the C/N ratio parameter is not in accordance with SNI 7763:2018.