In beginning of season I use 14-14-14 fertilizer. What should I be using now that they have fruit

Anyone?

I just learned this myself, low first number "nitrogen" high other two. Bloom booster type fertilizers. There are organics and chemical the choices are endless. Espoma flower tone, is one ive been testing out, along with dyna grow bloom booster, also bat guano. I also throw a little epsom salt and ironite in the mix.

Yeah I read low nitrogen 5 or less, but do the other 2 number matter if they're too low or high

Not really they need to be higher than the nitrogen. Nittrogen makes things grow faster, phosphate and potash make them fruit or flower. My dyna grow bloom booster is 3-12-6, the Espoma flower tone is 3-4-5 bat guano is 0-5-0. https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fertilizer-numbers-npk.htm. This will explain everthing very well!! Just tried it so when you get there type npk in search, scroll down to pic that shows a pallet of fetilizer for some reason it doesnt go directly to it.

Hi,
Are your trees in the ground ? or in pots ?
In the ground, you can use a X-X-X fertilizer. More  you feed them, to some extend, more you'll get them to grow and produce - because they'll grow quicker.
Image in a cold climat, if you hasten the growth you'll hasten the fruit production too - too much fertilizer and you'll burn the trees though ...
I've been using a closed hand full of 10-10-10 (X is 10) per tree every month from March to August.
Now that the trees have matured, I'm trying with 2 or 3 applications in the year ( March - April - and probably this or next month or perhaps just go with 2 times this year).
I'm trying to see if I can get a shorter inter-nodal spacing to have more compact trees.

IMO, what is important is to fertilize early in the season for the trees to take asap advantage of the fertilizer.
Don't forget to water properly too as watering is important too.

So I would continue with the 14-14-14 . In cold climates I need to stop fertilizing as of beginning of August for the stems to have time to harden off.

They're all in pots. I use the 14-14-14 early spring. Was just wondering if I should switch for summer months now that they're fruiting

Hi,
You don't need to switch, but you can if you want.
Just be careful with the quantities you use in the pots .
I only use one type of fertilizer all year long and it is the 10-10-10.

I fertilize early in the season, and use slow release Osmocote and turkey compost and don't fertilize during the heat, but read that you could do liquid feeding every 20 days till August.
You mix one tablespoon of your balanced fertilizer with one gallon of water.

Years ago I almost killed all my fig trees using 13-13-13
in the middle of the summer,all the leaves dropped.I didn't know any better.