There is a lot being said of biochar currently, but I have my doubts. First, since things run in cycles, it is an opportunity to bring up an old topic and champion its use. It will be some time before the theory will be disproven.
What tells me it's not all that good is that people in the South American forests have been burning the forest to raise beef for US consumption, and then every few years they have to move to another locale. So, what happened to all those benefits of bio char.
Next question: what is available in the char that is not available in the wood, and over a longer period of time?
So, basically I can't prove anything, but, since biochar DOES rely on burning some portion of the wood, there goes some of that straight into the air instead of the soil.
Personal, but very educated and experience, biochar is pure bunk, but is soneome's great bandwagon. No offense intended.
Loren Luyendyk wrote:
then cover with the hay.