I had wondered about fertilizing bananas myself, and there still seems to be no consensus on the issue here yet. I'm thinking that something along the 10-10-10 balance makes lots of sense, given that bananas in their natural habitat tend to grow on heavily leached soils,so are wanting for all nutrients. Also, the mention of heavy watering as a necessity (bananas being probably 85% water anyway) is extremely important (imho), since tropical climes usually experience high rainfall amounts on a daily or semi-daily basis. So....as I always say...if you want the plant to thrive, try to "think" like the plant. Provide it the growing environment it thrives in naturally.
