Stephen Joseph - International Biochar Initiative

THE RESEARCH CHALLENGEDeveloping a thorough understanding of howdifferent types of agrichar react in different types ofsoils, with different types of plants, in differentclimatic conditions, with different input and tillagepractice when they are first put into the soil.Quantifying how the weathering/aging of theagrichar affects both plant health and growth rates,soil carbon content, water retention andgreenhouse gas emissions over the lifetime of thechar.

Draft Char Process Model; Food For Thought

Some Concluding QuestionsWill All New Chars Replicate the Properties of Terra Preta OverTime?What is the Relative Importance of Biotic versus Abiotic Processes?Are Chemical Enhancements Necessary to Ensure the Long TermStability and Activity of the Char (e.g. addition of Calcium Salts)Especially When Adding Low Ash Chars to Soils?RecommendationResearch is Required to Generate Sufficient Data ToDevelop Comprehensive Models.This needs to be A Global Co-operative Effort

BEST Energies Australia Pty Ltd56 Gindurra Road SomersbyNSW 2250, Australiaphone: +61 2 4340 4911fax: +61 2 4340 4878email: info@bestenergies.com.au