Pasture Cropping + Biochar. A marriage made in heaven?
This is a programme on Pasture Cropping.
The idea of sowing your crop directly into unploughed fields full of grasses.
The object is to increase soil organic carbon.
Again, another counter-intuitive idea as for Biochar/ Terra Preta--"burning" things to reduce greenhouse gasses.
Won't the grass take away water and soil nutrients from the crop?
Quite the opposite say the proselytisers of this idea.
But what if you sell your carbon for credits and you let your soil carbon fall? Do you have to pay your carbon credits back?
Good question; but will that happen if you spread char on the soil at the same time as sowing?
It seems to me Biochar works best in soil with high levels of organic carbon.
This looks to me like a marriage made in heaven.
Quite along video, but well worth the time looking at it, if you are a farmer or interested in solutions to Global Warming. It is intersting that mining companies like Rio Tinto and The Qld. DPI are helping fund some research.
I feel the same about terra preta gardening/farmingANNE KRUGER, PRESENTER: There's a great deal of unease across rural Australia about the cost farmers will bear when agriculture is eventually included in an emissions trading scheme. For every carbon credit, such as planting trees and leaving pasture intact, there's a debit, the cost of using fuel, fertiliser and other farm chemicals. While it's fair to say soil-carbon sceptics still outnumber supporters, one scientist claims it's the key to farming profitably in a carbon economy.
PIP COURTNEY: What keeps you going?
CHRISTINE JONES: A belief that it will work. Yeah... I, absolutely, at a very deep level, I fundamentally believe and I actually know at a deep level that it does work.
PIP COURTNEY: Christine Jones's message is simple:
CHRISTINE JONES: Rebuilding carbon-rich agricultural soils is the only real productive permanent solution to taking excess carbon dioxide from the atmosphere.
http://www.abc.net.au/landline/content/ ... 490568.htm