Trials of agrichar - a product hailed as a saviour of Australia’s carbon-depleted soils and the environment - have doubled and, in one case, tripled crop growth when applied at the rate of 10 tonnes per hectare.
Agrichar is a black carbon byproduct of a process called pyrolysis, which involves heating green waste or other biomass without oxygen to generate renewable energy.
http://www.dpi.nsw.gov.au/research/updates/issues/may-2007/soils-offer-new-hope
http://www.abc.net.au/science/broadband/catalyst/asx/Agrichar_hi.asx
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