I did this once buy accident want to put a couple strips of oats on edge of field . I ended up forgetting to shut off a tank that had peas in it.... I never spray any thing on it. Stayed super clean seemed like they were both ready at same time. I think oats did help peas stay up right . I think the shade maybe extended the pea maturity....? I did not separate them sold as feed I think it would be pretty easy to separate. I plan on trying it on purpace this year. We'll see how it goes.