<![CDATA[Slurry can potentially be used as a basic material in composting. This is due to the high organic matter and nitrogen level of the slurry. Slurry has a low C/N ratio of 7.4, which might cause nitrogen loss via NH3 and NO2. Slurry handling requires management, such as the addition of baglog raw ingredients. Baglog is a waste media in mushroom production. Baglog has a C:N ratio of 35.21. Compost raw materials with a high C/N ratio smell because the primary bacteria are not present. As a result, composting raw materials with the lowest C/N ratio must be combined with materials with a high C/N ratio. The purpose of this research is to determine the combination of compost raw materials, such as baglog and slurry, to produce compost that satisfies quality standards. The composting research experiment consists of six treatments, including K1 (25 liters of slurry + 25 kg of baglog + 0 ml of decomposer), K2 (25 liters of slurry + 25 kg of baglog + 3 ml/1000 mL of decomposer), K3 (30 liters of slurry + 20 kg of baglog + 3 ml/1000 mL of decomposer), K4 (40 liters of slurry + 30 kg of baglog + 3 ml/1000 mL of decomposer), K5 (50 liters of slurry + 25 kg of baglog + 3 ml/1000 mL of decomposer), and K6 (25 liters of slurry + 50 kg of baglog + 3 ml/1000 mL of decomposer). The compost quality standards of Minister of Agriculture Regulation No. 01 (2019) are satisfied by treatments K1 until K4. Application K2 (slurry 25 liters + baglog 25 kg + decomposer 3 ml/1000 mL) a higher nitrogen value compared to other treatments.]]>
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