Fecha de publicación: -- Fuente: WIPO "tomato" The invention relates to a biochar derived from plum biomass. The biochars may also be loaded with one or more nutrients. The invention also relates to methods of maintaining or enhancing the growth of a plant or seed by exposing a growth environment of the plant or seed to a biochar derived from plum biomass. The invention also relates to methods of removing contaminants from an environment by exposing the environment to a biochar derived from plum biomass. Additionally, the invention relates to methods of making biochars by pyrolyzing a plum biomass to form the biochar.