Phosphorus-laden Mg/Fe Layered Double Hydroxide Dispersed on Douglas fir Biochar as a Controlled Release Fertilizer and its effect on the growth of bush beans (Phaseolus vurlagris).
Researchers created a slow-release phosphorus fertilizer by coating wood-derived charcoal with a mineral compound that holds and gradually releases phosphorus. Bush beans grown with this material outperformed those given conventional fertilizers in yield, biomass, and nutrient uptake.