Care should be taken that the charcoal be well pulverized, for it has been ascertained that during the process of burning the wood to get it, the openings of the pores become closed by a vitreous matter – probably caused by the fire melting the silicate of potash – and thus deprive it of the power of absorbing gases. By crushing it other openings are made, which unless the charcoal is again subjected to fire, will not become closed.

Two management directives led us to a bio-extensive design. First, because our staff is small, we required a system that would provide inherently good weed control. Bermuda grass was a particular concern. Our second directive demanded a reduced dependence on outside fertility inputs, particularly industrial poultry litter. Many, if not most, of the organic market farms in our region depend on broiler or layer litter for annual supplies of nitrogen and organic matter. We wanted an alternative that would be more independent and sustainable.

Our farmstead is nestled at 1500 feet in the hills of Northeast Vermont. Vermont hill farms have a history of hard scrabble living, away from the fertile soils of the valley farms. Ours was no exception. Since the 1790’s our farm has seen 15 families come and go, each unable to keep the land due mainly to a declining fertility in the soils. Clear-cutting, overgrazing and a sandy soil base that leaches out in heavy rains left no cushion against the extremes of the Vermont farming year. When our house foundation was dug 20 years ago the excavator operator asked if we wanted to change our plans and open a gravel quarry instead of building a house.