The value of soil enrichment media

Yusuf Adam, Syd Ramdhani, Sershen Naidoo - University of KwaZulu-Natal

The plant biowaste generated by removal of invasive alien plants species is generally disposed of, even though it represents a potential resource for resource enrichment through composing.

This study investigated the value of soil media generated from biowaste of four invasive species in South Africa which are Pearl acacia (Acacia podalyriifolia), Kahili ginger lily (Hedychium gardnerianum), Indian laurel (Litsea glutinosa) and Mexican sunflower (Tithonia diversifolia).

These species were harvested and then tested for allelopathic effects: leachates produced from biomass of all four taxa had no marked effects on Zea mays (maize) and Pisum sativum (Pea) seed germination.

Soil enrichment media was then produced by composting by these species in four combinations (one woody with one herbaceous species); commercial compost was also assessed for comparative purposes.

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