Analisis Kapasitas Penyangga Kompos dan Biochar Berbahan Dasar Kotoran Sapi

Abstract

This study aims to determine the acidity level, buffer capacity, and functional groups present in compost and biochar derived from cattle manure. The research was conducted at the Soil Chemistry and Biology Laboratory, Faculty of Agriculture, Universitas Sumatera Utara, and at BRIN (National Research and Innovation Agency) in Serpong, South Tangerang, from September 2024 to March 2025. This study used a Completely Randomized Design (CRD) with a non-factorial approach, considering the type of biomass material as the treatment factor, with four replications. The treatment factors included (Bo) pure water, (Bb) cattle manure biochar, and (Bk) cattle manure compost. The observed parameters were pH, pH buffer capacity. The results showed that the application of cattle manure biochar and compost significantly affected the pH buffer capacity. The analysis of pH and buffer capacity showed that cow manure biochar has a better buffering capacity compared to cow manure compost.