Here is the SANET thread on chicken shit +
weeds + humus
manure and weeds
Preston Sullivan (prestons_at_ncatfyv.uark.edu)
Thu, 12 Sep 1996 14:21:17
http://www.sare.org/htdocs/hypermail/html-home/15-html/0206.html
c-litter and weeds II
Preston Sullivan (prestons_at_ncatfyv.uark.edu)
Fri, 13 Sep 1996 11:37:31
http://www.sare.org/htdocs/hypermail/html-home/15-html/0221.html
Re: c-litter and weeds II
Steve Diver (steved_at_ncatfyv.uark.edu)
Fri, 13 Sep 1996 17:40:32
http://www.sare.org/htdocs/hypermail/html-home/15-html/0230.html
Re[2]: c-litter and weeds II
D. Eric Hanson (hansonde_at_ccmail.orst.edu)
Mon, 16 Sep 1996 08:02:23
http://www.sare.org/htdocs/hypermail/html-home/15-html/0247.html
Re: Re[2]: c-litter and weeds II
Steve Diver (steved_at_ncatfyv.uark.edu)
Mon, 16 Sep 1996 13:26:01
http://www.sare.org/htdocs/hypermail/html-home/15-html/0245.html
People observed that weeds often flourish in an
agricultural field following poultry litter
application. Yet, researchers have thoroughly
dissected chicken shit and determined this
material has no weeds seeds, due to the chicken
gizzard.
So where do the weeds come from?
The hypothesis I proposed is that raw humic
substances signal weed seeds in the soil
to jump up and grow.... because the soil is
bare and Nature reads the situation as a
disturbed soil site that needs to be covered.
However, humified compost applied to
agricultural fields that are managed
by tillage send a different signal. The
feedback says this is a mature soil ecosystem,
so weed seeds you can just lay still and sleep
for now.... no need to jump up and grow.
This is NOT about weeds seeds that are killed
in the composting process.
I share these in regards to agricultural fields,
fyi, not as a suggestion to control roadside
vegetation.
Shifting weed populations with soil fertility
management is for agricultural fields managed
under eco-farming guidelines. These are "shifts"
in weed populations, supported by integrated
weed management techniques like rotations, tillage,
cover crops, and mechanical cultivation.
For roadside vegetation, focus on the kick-ass
weed control methods: steam and vinegar and goats.
Geotextile weed barriers are for specialized
bio-island plantings near homes, schools, churches,
street corners, and heavily traveled by-ways.
Steve Diver
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Received on Mon Mar 24 2003 - 23:50:39 EST