Researchers at JCUⁱ have developed methods for generating biochar (charcoal) that can provide direct nutrient benefits when applied to soils.  The algal biochar is derived from fast-growing species of algae, making it an attractive solution for sequestering carbon as well as capturing the high levels of nutrients such as nitrogen and phosphorous stored within the algae.

Direct benefits of applying algal biochar to soils include increased soil nutrition, improved water holding capacity and enhanced microbial activity, leading to greater crop productivity.  Algal biochar is particularly effective in acidic soils.  Globally, agricultural industries consume more than 200 million tonnes of fertilisers annually.  A significant portion of these fertilisers find their ways into surrounding water bodies.  Algal biochar derived from the remediation of the wastewater from agriculture, aquaculture, impacted natural waterways or saline waste water could provide a significant long-term carbon sequestration solution and a valuable soil rehabilitation product.

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