Don't just take our word for it.... some great articles below
Wood biochar increases nitrogen retention in field settings mainly
Biochar2014-15 Primary Production Innovation Grant Interim Report
World Bank report on Carbon Sequestration in Agricultural Soils
Livestock Research for Rural Development Journal - Improvement of growth performance of goats
Livestock Research for Rural Development Journal - Biochar reduces enteric methane and improves growth and feed conversion
MLA Report on Livestock Productivity Cost Benefit
Whole-farm biochar system boosts productivity, stores carbon, cuts inputs and emissions