On my honor... stand

Honor stands abound this time of year! The ones I see the most often are selling mikans. I don't know what this one is selling. Manure maybe?

This stand was in the middle of a vast expanse of farmland. This stand had celery, eggplant, and some kind beans. If I wasn't in the middle of my run, I would have bought some celery. Only 100-yen!