Adsorption characteristics and adsorption behavior of ammonium ions onto rice husk biochar pyrolyzed at different temperatures
The low nitrogen use efficiency of applied fertilizers, often below 50% in most agroecosystems, is a significant concern. Biochar (BC) has large micropore structures, high surface area, and surface charges, which improve soil nutrient retention; these properties depend on pyrolysis conditions and the type of feedstock....