Easy Pick Squash

I got an easy pick squash start today.
I usually get lots of leaves but hardly any squash.
I've been told its one of two things:
-Too much nitrogen, not enough phosphorus.
-Inadequate pollination.

I'm not gonna hand pollinate, but I was planning on using bone char or stewed bones in the planting hole, to promote blooming.

Any other ideas on how to get a bumper crop like so many people seem to?

We just started a huge pot of bone broth, I'm hoping to get plenty of softened bone from the process.
Does anyone know if it will still have phosphorus in it?

William Bronson wrote: We just started a huge pot of bone broth, I'm hoping to get plenty of softened bone from the process.
Does anyone know if it will still have phosphorus in it?

My understanding is that the physical matrix of bones is comprised mainly of calcium and phosphorus. I know that the point of bone broth is to extract the minerals, but I'd suspect that what's left is still fairly high in phos.

Hmm, what a great idea! It sounds like something I should do, too... But here, feral dogs come through once in a while, and I'm sure they'd dig any buried bones up, which might be less than optimal for the plants over them. If I were to do it, I'd try to grind the softened bones, mix them with compost, and keep them for at least a week to compost before putting them in the garden soil under precious plants...

Good point about the dog!
I actually have a doggo, she is pretty nose deaf,  but the raccoons and possums  are not, so...
Hmm, maybe I will use pee as well as bone mush, to scare them off...