i just wouldnt have a dish...
the soil will hold water. when the cues have used most of that up it will dry out. try half a pint a day, rising to a pint on sunny days. dont let them wilt, ever. however strong you think that feed is, i promise its no where near too strong to hurt them. they will take it neat!! mine is so thick you can hardly pour it!!!
fill a bucket of chicken s..t to about a third of the way up. fill up with water and stir well. let it ferment for a week, then use that badboy
once a week at least, i give mine about a potnoodle pot full every couple of days. try it with one plant first. that feed is good for all cucurbits.