Rice growing, biochar trial in Thailand

Gordon Hirst has sent me a link to a Facebook page that is recording a 5-year rice growing field trial in Thailand which includes biochar.
https://www.facebook.com/onetonperrai/

The page needs an introduction to set the scene but if you scroll to the start (3 July 2017), you can review progress via video posts and trial records...

"A field experiment using both a biochar fertilizer/ soil enhancement and SRI (system of rice intensification) to attempt to double the yield of a working farm, from 500 Kg/Rai to 1000 Kg/Rai. The farm is paddy rice farm located in Nakhon Ratchasima province ten Rai (1.6 Ha). The experiment will last for five years"