Applying Rice Husk Biochar for Carbon Sequestration in Building-Integrated Agriculture for Sustainable Urban Agriculture

Urban Farm DB summary

A study assessed carbon storage in rooftop farming using rice husk biochar (RHB) as a soil amendment. Seven soil supplementation treatments were assayed, including 20 wt.% organic fertilizer (worm casting), RHB (1.5, 2.0, or 2.5 wt.%), and combinations of worm casting with RHB, plus a non-supplemented control. The highest amount of carbon in biomass and soil was observed when using soil supplemented with worm casting plus 2.5 wt.% RHB, which positively impacted carbon sequestration in rooftop agricultural soils and urban food security.