How often to feed 'blind' daffodils?

Hi. My potted daffodils grew blind this year, sadly (apart from one?!). Last year I left all the foliage to completely die down (and I didn't tie the foliage in knots!). However, I didn't feed the bulbs and I think this may account for the lack of flowers this year. I fed them a couple of days ago with tomato food but I'm wondering if I have to keep doing this, or once is enough? Many thanks in advance.

0
Posts
Are they very congested? If so, splitting them up might get them back into flower (next year).
can you plant them out in the garden? They’ll probably be happier and will flower next year.