[Terrapreta] FIeld and Nursery Trials

[Tom Miles]

Jim,

 

Richard explained quite a bit in July. See:

/2007-July/
date.html

 

For example July 29 to Eduard Someus:


 

Hello Richard,

 

1.	What dosis are using for charcoal to mix into the soil? What grain
size?

 We used 30 gallons of charcoal in each 5 foot by 17 foot plot, rototilled
in a single pass to 6 inches.
John Flottvik's charcoal is a fine powder and conifer source. 

Larry's Charcoal is about 1/2" minus and is made from hardwoods primarily
alder, with some maple, birch and cherry.




1.	What is the organic volatile residual content in the char? Is that
hard wood or soft wood you are using for  char?

We are not releasing analysis of John's charcoal. Ours is 11.22%
Volatile,46.5% fixed C and 42.2 % Ash. It is as we put it in the soil. The
high ash is because of our earth covered mound method of production and with
a followup test of clean charcoal the Volatile component might be
considerably higher. 




1.	What is your irrigation programme during tests? 

 

We are using overhead irrigation in this section. Rate is high because
adjacent seedbeds are moist habitat native shrubs, willow, etc. 

 

Tom

 

 

Seems strange that Fourth Corner Nursery doesn't know how much charcoal they
applied . . . maybe they don't want to tell anyone?




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