Bird, I think you can get an optional fertilizer hopper attachment for them (TIMB mentioned in his post). Seems like it would be good for corn...which needs a lot of nitrogen. I usually side dress my corn after it is up. I always wondered if the fertilizer hopper would make it tipsy. I have knocked my planter over many times and had to pick up spilled beans/corn. They could make a better stand. I still like my old fashion push plow for some things. For peas, I also would make double rows (down each side of the string), however I like to really sow them thick...(I think they do better)...so use the push plow. Your mention of the blackeyed peas...really makes me hungry. My wife has southern roots, and when we got married, I was soon planting crowder peas, blackeyed peas, and collard greens. As a northerner...I'd never grown any of those. Now, I'd take the crowder peas and corn bread, any day over the horticulture shell-outs we planted. Funny, thing, my folks also started enjoying these southern treats as well. Gee, all this garden talk is making me hungry. The defining garden moment for me is picking that first tomato. Sinking my teeth into the sweet corn would have to come in second.
pete