Continuous-feeding vermicomposting as a recycling management method to revalue tomato-fruit wastes from greenhouse crops.

摘要: Abstract Huge quantities of discarded fruits generated from greenhouse crops represent a worldwide environmental problem. The aim this work was to assess the efficiency vermicomposting as recycling management option for biotransforming tomato-fruit wastes greenhouses into an organic nutrient-rich product available agricultural purposes. A pilot vermireactor constructed. It provided with manure layer, where initial population Eisenia fetida introduced and fed continuously at high loading rate (13.6 kg TOC m−3 wk−1) 150 days. Vermicompost chemical enzymatic parameters well bacterial fungal community structure were determined 210 days (vermicomposting plus maturation period). Earthworm biomass increased after 90 days, then declined due increasing pH, electrical conductivity ammonium concentration. temporal patterns dehydrogenase, β-glucosidase, protease urease related earthworm growth stabilization matter. Bacterial DGGE profiles differed between period degradation labile substrates step. Fungal communities stage maximum most, suggesting gut passage effect. end chemically stable enriched in nutrients, demonstrating that can be successfully vermicomposted valuable soil amendment. We suggest continuous-feeding environmentally sound wastes.