Biochar - latest news on results / performance

There are now more than 15,000 published biochar papers.

This new meta-analysis paper is the biggest and most comprehensive meta-analysis of these papers to date. 

The paper is at link:  Biochar in agriculture – A systematic review of 26 global meta-analyses, Hans-Peter Schmidt,Claudia Kammann,Nikolas Hagemann,Jens Leifeld,

The summary table is in the chart below.

The property being measured is in rows/down. Where the bar-chart is to the right of zero line, it is a positive benefit.

• Overall biochar gives a 15-25% increase in growth
• Biochar co-composted with green waste (e.g. SF60!) overcomes many (all!) the priming issues and gives results at the higher end of the range. 

If you want a full briefing then Klaudia and Maria (from the IBI) gave a detailed review presentation on 25th Jan, This is available to all IBI members. If you are not a member, £65.00 a year is 100% worthwhile for those wanting insight into biochar