Compostkwaliteit

Compostkwaliteit refers to the characteristics of compost that determine its suitability for various applications, primarily in agriculture, horticulture, and soil improvement. Key aspects of compostkwaliteit include its physical, chemical, and biological properties. Physically, good quality compost is crumbly, dark brown, and has an earthy smell, indicating that decomposition is complete. It should be free of large undecomposed material, stones, and glass. Chemically, mature compost has a stable, near-neutral pH and a low salt content, which prevents harm to plants. A desirable nutrient content, particularly nitrogen, phosphorus, and potassium, contributes to its value as a soil amendment and fertilizer. The presence of stable organic matter, specifically humic substances, is crucial for improving soil structure, water retention, and aeration. Biologically, high-quality compost is teeming with beneficial microorganisms that continue to enrich the soil. It should be free from pathogens, weed seeds, and harmful substances like heavy metals or persistent organic pollutants. The absence of phytotoxicity is also a critical measure, ensuring the compost does not inhibit plant growth. Standards and regulations often define specific parameters for compostkwaliteit to ensure safe and effective use, distinguishing between different compost grades based on their intended purpose, such as garden compost or agricultural compost.