posted 7 years ago
I like the idea of the 50/50 biochar/compost split because there's a better chance of microorganisms continuing to thrive if there's compost for them to eat and to retain moisture.
I also think that perhaps it's compost you should be selling, as that's what people will be familiar with, the biochar acting as a substantial additive with serious benefits to microbiology and soil structure. If it's all organic, you can sell it at organic compost prices, at least. Those will vary by region, so check those out, too.
I could be wrong, but I think this approach will offer a larger initial client base of at least somewhat clued-in gardeners. Once those notice the benefits of your biochar-laden compost and start talking about it amongst themselves, you might at that point get demand for a straight biochar product, for use in domestic compost, which will obviate the need to keep delicate microbiology alive in the biochar in the absence of food and moisture.
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein