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well served on these kinds of studies where we're looking at this is a work is
done it for shubh endeavor legal system university of georgia
when we started out in nineteen eighty we started out in the system
it wasn't to make a system that had been in the end
conventional agriculture for approximately
thirty thirty five years
then using all the standard pesticides herbicides fertilizers
tidwell
has had success in all
uh... rotating crops corn soybeans or gone back to corn now so there was a
sequence for you
at one of a curse was converted to sustainable back in nineteen eighty
houdini u_s_d_a_ define sustainable and
first and all
whisenand somewhere
no tail
just cuz you stop killing
something that had been in conventional practices for thirty years
are you putting the biology back into the system
where they come from
they've been killed for thirty years
where does organisms going to come back from
there's nothing surrounding
these two acres
that would have any other proper not kill a minute
surrounded by other aren't that's been treated with this decides for the last
thirty years
so just as we stopped tilling up over here does that mean we got the biology
back into the soil and the first year after going
sustainable it was a total disaster
it was horrible
we planted corn made not born until but not here
because in the fall
mahato we plan to the green cover crop agreement miller's what's called an
outcrop
and then when we tell them all
and when we mark that copied down the next spring
we had a bad
ten centimeters dap
of green plant material sydney on the surface of the silent start serene
georgia rains all landline trains on-screen mom
so what happened is that from the plant material
sap bear on the surface of the soil
started getting all stinky
anaerobic
one went out there with a contractors to try to plant a crop into the field
and all that happened with the tractor tires was ages spun
no traction
kazi trying to drive something over salami
anaerobic cuter find
so of course are first crop was a very good thing about when that when we did
get into any derailed
and we plan to balance corn seeds
and a sad and injuring ground airing in indiana rolled it cuter find material
now it just turned the corner seedlings into anaerobic defying material
now we can make a very good crop the first year
just as a staff telling
doesn't mean pics anything
mountains so well
fellow at the end of that first growing season we put compost out
we put the proper biology back into that soil
rightward
and their dosti on the surface of exile but
the plant material started decomposing right away
obvious leftovers slime sitting on the surface of the soil started decomposing
we started rebuilding soil structure
so nineteen eighty one
it was a severe drought you that your was sore soybean
they've gone back into the system so that both sides with soy bean
women almost no yield over here at all
and we made normal yields here
because we are starting to build structure in the sun we were holding
water
this i don't know structure dot there was no way to hold water
water all over here at the water just flesh a strike through himself and
groundwater
we held water
and when they'd normally elves
by nineteen eighty four d no pesticides were required
we got rid of the past problems we still have a
if it's we had
all kinds of scaling insect we had grasshoppers we had
does a slew of different kinds of insect pests
by nineteen eighty six we had we developed a whole a_b_c_ horizons in
that so well
good structure
down until couple of years within the soil
so from that time
four pounds of fertilizers per acre four kilograms per hectare
of fertilizer the growth of our foreign
you can do that because i still system
yes conventional system it takes four
kilograms a fertilizer per hectare
to grow a crop
and we were on better cropped
on four
kilograms
over the years
even that's disappeared
because out of the green cover cropping because of the nitrogen fixation that
now goes on that so we don't use any fertilizer at paul
and labor better you know
these papers are published in these different kinds of journals you want to
go talk to somebody whose continuing this where dave colon polyp hendricks at
the university of georgia
go talk with them