[Terrapreta] FIeld and Nursery Trials

[Tom Miles]

Jim,


It's not always very clear. A discussion of how the appropriate application
rate is determined would be welcome. 

 

The applications appear to be from 5-10 tones/ha or about 2.2-4.4 tons per
acre. The highest is probably equal to 3% C in the top 10 cm (4 in) of soil.


 

1 mt = 1.102311 short tons; 1 ha=2.471044 acres; 1 mt/ha = 0.446091 t/a.

 

I used 5-10 t/ha to calculate some carbon sequestration rates:

http://terrapreta.bioenergylists.org/carbondioxide

 

The tests in the Oil Mallee charcoal project in Australia used a rate of 6
t/ha (2.68 t/a) in a  100 mm (3.94 in)  wide band, equal to a broadcast rate
of 1 t/ha (.45 t/a) for a row spacing of 600 mm (23.6 in ). See
http://terrapreta.bioenergylists.org/oilmalleeiai07

 

Tom  

 

 

 

 

 

From: terrapreta-bounces at bioenergylists.org
[mailto:terrapreta-bounces at bioenergylists.org] On Behalf Of Jim Joyner
Sent: Friday, November 23, 2007 8:25 AM



 

It may have been stated but I can't find anyplace where the amount of
charcoal applied on the trial beds is reported. Anyone know?

Thanks,

Jim

-------------- next part --------------
An HTML attachment was scrubbed...
URL: /pipermail/terrapreta_bioenergylists.org/attachments/20071123/1ae3b7f7/attachment.html