I've been using it on my farm for decades and 'Nitrogen Binding' has not been a problem or even noticeable.
If a banana plant loses a small percentage of available nitrogen due to binding, but then increases it's root zone by 200% or 300% due to the loose soil, it's easy to see the net effect is a dramatic increase in nitrogen and other nutrients available to the plant.
There was an earlier discussion about coffee grounds binding nitrogen thus making less available to plants, so I filled a pot with 100% coffee grounds added a banana plant and just water. The plant grew and produced fruit like other bananas, here's a photo of the roots the day it was put in the ground.
Quote:
Originally Posted by Richard
In the studies I've read - including those in the link previously provided - Biochar tends to bind Nitrogen thus making less available to plants.
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