Overview
High-temperature composted vegetable and fruit waste is produced through controlled aerobic decomposition at 50–70°C, which accelerates breakdown while eliminating pathogens and weed seeds. This thermophilic process is distinct from traditional composting due to its faster turnover (2–4 weeks) and higher nutrient retention. The product is valued for improving soil structure, water retention, and microbial diversity. Industrial-scale production often uses windrow or in-vessel systems with mechanical aeration. The raw materials typically include discarded vegetables, fruits, and crop residues from food processing industries, making it a sustainable waste-to-resource solution.
Physical and Chemical Properties
The compost exhibits a stable, humus-like consistency with a pH range of 6.5–8.0, suitable for most crops. Its electrical conductivity (EC) is moderate (2–4 dS/m), requiring dilution for salt-sensitive plants. Key nutrients include nitrogen (1–2%), phosphorus (0.5–1.5%), and potassium (1–3%), along with secondary elements like calcium and magnesium. Microbial analysis reveals dominant thermophilic bacteria (e.g., Bacillus spp.) and fungi (e.g., Aspergillus), which contribute to disease suppression in soils. The carbon-to-nitrogen (C:N) ratio stabilizes at ≤20:1 post-composting, ensuring immediate nutrient availability.
Main Applications
In agriculture, the compost is applied at 5–10 tons/hectare as a basal fertilizer, notably for organic vegetable and fruit production. It reduces dependency on synthetic fertilizers while mitigating soil degradation. Greenhouse growers use it as a substrate component (20–30% blend) for seedling nurseries. Municipal landscaping projects utilize it for turf establishment and park soil rehabilitation. Recent innovations include pelletized forms for precision farming and biofortification with additional micronutrients like zinc or selenium.
Safety and Storage
Properly composted material poses minimal biosafety risks, but immature compost can release phytotoxic compounds. Suppliers should provide lab tests confirming the absence of Salmonella and E. coli (≤3 MPN/4g). Storage piles must not exceed 2m height to prevent anaerobic hotspots and spontaneous combustion. During transportation, moisture content should be maintained at 30–50% to minimize dust. Regulatory compliance varies by region; in the EU, it must meet EN 13432 standards for organic fertilizers.
B2B Procurement Guide
Bulk buyers should prioritize suppliers with composting facility certifications (e.g., USCC Seal of Testing Assurance or equivalent). Key quality parameters include stable organic matter content (≥30%), seed germination index (≥80%), and low heavy metal levels (e.g., ≤50 ppm lead). Contract terms often include moisture-adjusted pricing and batch testing. For international shipments, fumigation-free phytosanitary documentation is essential. Large-scale users may invest in on-site composting to reduce logistics costs.
Related Manufacturers
- 主营：有机肥、生物有机肥、微生物菌剂、复合微生物肥料、微生物菌肥、羊粪、羊粪有机肥、颗粒有机肥、525、884、高标准农田项目、大田用肥、招投标合作、微生物肥料、发酵鸡粪、高标农田、有机肥料、鸡粪