Yes like I said I totally agree that it improves the growing potential of the soil in a lasting way but in an artificial way.
The soil and the communities of plants, fungi, bacteria, collembola, nematodes, acari and algae are a living thing that is
not something you can put in a bag. Every aspect of our biosphere was intentionally created by some organism or another.
If the stromatolites had not created our atmosphere of oxygen the air would be full of heavy metal hydrides and most things
would mutate and die before they had a chance to evolve any structures of use. Organisms everywhere are battling unbelievable
odds to create the right balance of clean air and water and micronutrient availability.
The soil is from 5-10% Iron but Iron availability is the limiting factor in all biological systems. A fungus creates a large complex molecule
just to capture a single atom of Iron. The solubility of iron is so low that it reminds me of the recipe for homeopathics, one atom/molecule
in a sphere the size of the orbit of Jupiter.
What I am saying here is that all of the things that biochar does are done better by biological systems for free.
If you farm without utilizing the biological system then you will just have a dead, energy and inputs hungry system.
There is a lot of big money going into researching the potential of biochar and I am glad to say that the science has
prevailed. Even carbon sequestration in farmland, which was being pushed by the big corporate farmers of the U.S. and
australia, was knocked back at Kyoto because everyone saw it for what it was, an attempt by these companies to turn
any future carbon credits scheme into their own slush fund.
When oil is finally too expensive to carry on the wasteful madness of the past century then the monster companies that
have grown around it will start to die. I wouldn't expect them to go without a fight though.