Thanks to the several folks who responded to my questions about 
field pea planting times and summer green manure crops. Several 
suggested Lakeview  and some other sources, and it seems that there are 
actually lots of non-GMO and even organic soybeans around. One outfit 
that really impressed me was American Organic Seed in Illinois. They 
have a bunch of interesting seeds for green manures and Art Scheele, who 
I think must be the owner or partner is a very interesting and 
knowledgeable guy. They've worked with all kinds of combinations of 
green manure crops and seem to do a lot of pretty creative stuff. One 
crop he suggested is Lablab purpureus! I never heard of it, but my wife 
Liz knows it as a bedding plant. Anyhow, it's this crazy aggressive 
vining bean that fixes a lot of N and is used mostly for deer pasture. ( 
maybe NOT what I need!)  They suggest seeding it with Sudan or millet or 
something like that so it has something to climb on. I'm going to give 
it a try. They assure me that it will not become invasive.  The 
inoculent is really expensive, but if it works, I don't care.
     Another thing I tried early in the spring was seeding field peas 
into over-wintered rye. I broadcast the peas then went over the rye 
quickly and shallow with my 8' tiller. Just enough to set the rye back 
some to keep it from taking over the peas but deep enough to scuff in 
the peas. Worked really slick until several families of Canada geese 
moved in.
     Again, thanks for the input.... very helpful. I guess this is what 
this list serve is for.... Jake