by "Vito" <vito@[EMAIL PROTECTED]
>
Apr 8, 2008 at 08:07 AM
"Lee" <lee@[EMAIL PROTECTED]
> wrote in message news:ftelff$r8u$1@[EMAIL PROTECTED]
> http://video.google.com/videoplay?docid=-842180934463681887
>
I used to use "No Till" cultivation to grow feed corn without plowing
circa
1970. After harvest, one disks the stalks into the soil for fertilizer.
In
late winter or very early spring one plants Rye grass. It grows knee-high
quickly holding moisture in the soil and choking out weeds. As soon as the
soil is dry enough one sprays the grass with a non-persistent herbicide -
Paraquat IIRC. In a few days the grass dies and 'lodges up'. Then you
plant corn using a special drill (planter). The dead grass keeps the sun
from drying the soil until the corn can provide its own shade. This
method
provides the same yields per acre as conventional tillage in a good year
and
a much better yield in dry years. The cost and any harm the herbicide
might
do is more than offset by saving the 1000s of gallons of diesel oil
otherwise burned to plow and harrow. Everything's a trade off ....