Composting and vermicomposting have attracted attention in relation to both waste management and the potential to produce organic amendments that could improve soil quality. The main differences between compost depend on the feedstock, the production process, and the degree of maturity. In the present study, samples of compost of different origin (food and green waste, livestock waste, algae waste, urban waste or sewage sludge) or subjected to different composting methods (traditional or using earthworms) were collected for analysis. Additionally, samples collected at various stages of the composting process were compared (raw material, 15 and 30 days of composting, and final compost). Different analysis and techniques were used to establish the chemical composition, physicochemical and acid-base properties of compost samples and the organic matter extracts. The correlations obtained (between the abundance of acid groups in different extracts of the compost or between the cation exchange capacity and the C/N atomic ratio) would allow for predicting the compost behaviour based on certain characteristics, and a reduction in the number of parameters determined experimentally, thus facilitating comparisons between different compost. In addition, the potential value of the compost as amendment was tested with a Haplic Cambisol from a mining area. The application of compost increased the pH, the organic matter and nutrient content, and promoted seed germination and root growth.

堆肥和蚯蚓堆肥在废物管理和生产可改善土壤质量的有机改良剂的潜力方面引起了人们的关注。堆肥之间的主要区别取决于原料、生产过程和成熟度。在本研究中，收集了不同来源（食物和绿色垃圾、牲畜垃圾、藻类垃圾、城市垃圾或污水污泥）或采用不同堆肥方法（传统或使用蚯蚓）的堆肥样品进行分析。此外，还比较了在堆肥过程的各个阶段收集的样品（原材料、堆肥 15 天和 30 天以及最终堆肥）。使用不同的分析和技术来确定化学成分，堆肥样品和有机物提取物的理化和酸碱特性。获得的相关性（堆肥不同提取物中酸基团的丰度之间或阳离子交换能力与 C/N 原子比之间）将允许基于某些特征预测堆肥行为，并减少参数数量实验确定，从而促进不同堆肥之间的比较。此外，用来自矿区的 Haplic Cambisol 测试了堆肥作为改良剂的潜在价值。堆肥的施用提高了pH值、有机质和养分含量，促进了种子发芽和根系生长。获得的相关性（堆肥不同提取物中酸基团的丰度之间或阳离子交换能力与 C/N 原子比之间）将允许基于某些特征预测堆肥行为，并减少参数数量实验确定，从而促进不同堆肥之间的比较。此外，用来自矿区的 Haplic Cambisol 测试了堆肥作为改良剂的潜在价值。堆肥的施用提高了pH值、有机质和养分含量，促进了种子发芽和根系生长。获得的相关性（堆肥不同提取物中酸基团的丰度之间或阳离子交换能力与 C/N 原子比之间）将允许基于某些特征预测堆肥行为，并减少参数数量实验确定，从而促进不同堆肥之间的比较。此外，用来自矿区的 Haplic Cambisol 测试了堆肥作为改良剂的潜在价值。堆肥的施用提高了pH值、有机质和养分含量，促进了种子发芽和根系生长。从而促进不同堆肥之间的比较。此外，用来自矿区的 Haplic Cambisol 测试了堆肥作为改良剂的潜在价值。堆肥的施用提高了pH值、有机质和养分含量，促进了种子发芽和根系生长。从而促进不同堆肥之间的比较。此外，用来自矿区的 Haplic Cambisol 测试了堆肥作为改良剂的潜在价值。堆肥的施用提高了pH值、有机质和养分含量，促进了种子发芽和根系生长。