This study hypothesized that the biochar can
be used as a substrate to regulate the adsorption and
desorption of pattern of different forms of N (NH N, NH N, NO N 4 2 + 3 − − −−
NH N, NH N, NO N 4 2 + 3 − − −− , combined NO N, NH N 4+ 3−− − that can serve as a base to develop biochar based slow
release fertilizers.