Composting Standard: After composting with the Fertilizer Fertilizer Fertilizer Compost, the quality of the final product can be assessed using several key indicators. These include color, odor, straw texture, leachate characteristics, volume reduction, carbon-to-nitrogen ratio, and the humification coefficient. Here’s a detailed breakdown of the evaluation criteria:
1. Color and Odor: The compost should have a dark brown or brownish appearance, with a blackish liquid forming at night. A mild ammonia smell is normal, and this can be confirmed using an ammonium reagent, which will show an increase in ammonium nitrogen content.
2. Straw Hardness: When wet, the composted material should feel soft and elastic. Once dried, it becomes brittle and breaks easily, indicating that the organic matter has fully decomposed and lost its original structure.
3. Leachate Analysis: Take a sample of the decomposed compost and mix it with fresh water in a 1:8 ratio. Let it sit for 3–5 minutes. The resulting leachate should be pale yellow, indicating proper decomposition and nutrient release.
4. Volume Reduction: The compost volume should decrease by approximately 2/3 to 1/2 compared to the original amount of material used. This reduction is a sign of effective decomposition and stabilization.
5. Carbon-Nitrogen Ratio (C:N): A well-balanced compost typically has a C:N ratio around 28:1. This ratio ensures that the compost is mature and ready for use without causing nitrogen depletion in the soil.
6. Humification Coefficient: This measures the proportion of organic matter that has been transformed into stable humus. A value of about 30% indicates good humification and long-term soil improvement potential.
These tests provide a comprehensive understanding of the compost's maturity and quality. For more information or detailed guidelines, you can visit our website or reach out to our team directly. Whether you're a farmer, gardener, or environmental enthusiast, these standards help ensure your compost is both effective and sustainable.
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