some plants, especially corn, are tricky to grow in pots. Usually plants start to flower if they run out of space to grow, even more if they run out of nutrients. If you apply fertilizer regularly, it should continue growing, but you_ll have the problem that the plant will need a lot of water as it becomes too big for its pot. And if they are too dry all the time, they'll also start to flower as "emergency measure". But I understand too well that space is limited, and bigger pots are not always an option! If you have the chance try to plant the corn outdoors, if thats not possible, be sure to fertilize and water it regularly! Concerning the beans, there are certain varieties that have been designed to grow well in pots. I had one of those last year, and although the pot was not huge, I could harvest a decent amount of beans! Let me know if you need specific advise, I am always happy to help a fellow gardener!
RE: Dysprosium grows: The Milpa Experiment