Mick Jones, head of research & development at Woodtek Biochar attended the BIO360 expo in Nantes, France in February 2023 where Mick presented a case study "Biochar use on the farm and small woodland". The case study was well received and here you can see the video: https://www.youtube.com/live/UafaewXQpEI?feature=share
Mick's talk starts at 1:11:00
Some of the key media from the talk:
Spreading biochar on our farm in early June 2021 after the first cut on a small strip as an initial observation trial. Whilst there was no visible immediate improvement in areas without clover there was around a 25% increase in yield of the second cut in areas with a good covering of clover.
Bacteria living on the roots of the clover are the hidden agents that produce nitrogen. These microbes occur naturally in most soils and clovers will produce significantly more nitrogen than other plants. Nitrogen is accumulated in small nodules on the roots of clover as they grow. When the roots die, nitrogen is released into the soil.
Early indication is that biochar is an excellent fertilizer for clover, improving the ability of clover to fix nitrogen which in turn increases nitrogen availability for grass.
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