Re: RE: Fertilizer - growth inhibitors

>But I couldn't find anything which would
>indicate that corn by-products would inhibit growth of other plants

It is my understanding that corn gluten meal (not regular old corn meal) 
with at least 60% protein content is commonly used as an organic 
pre-emergent herbicide.  It is also my understanding that it is the high 
protein that produces the herbicidal activity, so CGM with less than 60% 
protein is not effective.

Laurie


-----------------
laurief@paulbunyan.net
http://www.geocities.com/lfandjg/
http://www.angelfire.com/mn3/shadowood/irisintro.html
USDA zone 3b, AHS zone 4 - northern MN
normal annual precipitation 26-27"
slightly acid clay soil

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