Hi Carolyn, there appear to be a range of ways of doing it including feeding livestock with it, mixing it with fertilisers or applying on its own as a top dressing, using it with seed coatings, mixing it with the topsoil when tilling, adding it to compost extracts or other liquid amendments to name a few. We would recommend that you head to the Australia New Zealand Biochar Industry Group (ANZBIG) website – they have a fantastic guide available for download in the resources section which will give you some answers. https://anzbig.org/farmers-guide-2024/