The amounts should be given to you by the laboratory that did your soil analysis. Card payments, bank transfers, and Bitcoin are all accepted by Herbies. In addition, the company also supports grassroots operations that offer small-batch strains from their independently-owned farms.  Source: <a href=https://foro.turismo.org/trusted-and-reliable-seed-banks-t107350>https://foro.turismo.org/trusted-and-reliable-seed-banks-t107350</a>