Why is biochar useful?
When a plant mature it uses water and nutrients from the soil. Fine roots evolve into the tiny spaces between the soil particles and nutrients flow across from the soil water into the cells in the roots. It is a world we cannot see that is reliant on microbial activity in those small soil spaces. Biochar is carbon with a microscopic honeycomb arrangement with the actual size of the pore spaces dependent on the type of biomass used and the method of pyrolysis. This honeycomb arrangement is ideal for both holding water, providing micro-habitat for microbial activity and enhancing nutrient exchange between the soil and plant roots. The carbon in char is fixed and resists further degradation or decomposition even when it has been in the soil for hundreds of years. These equity make biochar an excellent soil amendment that can help improve poor or degraded soils. What we call poor soil is soil that has low height of plant nutrients, or has nutrients locked away in clouds