1)Fresh C. manure smells from across the parking lot, so it problem composted.
2)How deep do you want it, ? X 738 =???.
I would have my soil tested first & add the compost based on what you needed & add the 17 other elements also.
Organic Garden Magazine has a chart that states:
HEN manure: %N-2.4, %P-1.4, %K 0.6. Not all chicken manure is the same, but this will help.You can use coffee & tea waste,grass clipping, hay,straw,leaves, nut hulls,paper, sawdust(mostly for mulch,slow to break down).
3) If it has some moister then pour it in a 5 gallon bucket & hand spread it( use gloves if you like).
If it is dry & clean use a lawn spreader, if not clean, use the bucket & a dust mask.

Easiest way is to spread on top & let the rain wash nutrients down. The numbers should be on the bag. You want balance not just high nitrogen, so the bag should tell you what you're getting.

Spread on top by the scoop or hand method. You could rake it smooth a bit then let the rains wash it down or just leave the blobs on top of the soil.

Plan your garden space before application:

Heavy feeding crops want more of it than the light feeders. Brassicas & greens love, love, love it!
Peas & beans don't need it.
Carrots & potatoes don't like manure.

Berries also like it in late winter/early spring.

Hope that helps,
Corrine

Aside from the NPK value, it is my understanding that chicken manure also bumps up Manganese and Zinc levels considerably.

Commercial composts made from poultry (chicken) manure should not be "hot". If it does burn plants then it was not composted.
How much you need for any garden depends on that garden. What does a good, reliable soil test say about nutrient levels in your soil?
Spreading should be fairly easy. Sprinkle it around as evenly as possible with a coffee can or something similar. Use a hand held rotary spreader, Use a drop lawn spreader. But try to spread it as evenly as possible.

If it's bagged, it's most likely safe.

FYI, the easiest way to apply it is to offer a teenager pizza.

As to how much, what size bag and how deep? one cubic yard of a material will cover about 400 square feet 1" deep, so if each bag is approx 1/2 ft3...that's about a hundred bags (I'm assuming 40 lb bags).

Mine gets delivered by a semi. You should see the coffee can I use.

Strob - tried offering the SF rugby club a keg of beer to dig their way to a keg.......Yeah right!
A bunch of shovels stuck in the ground and an empty keg! LOL
BTW, I get my manure from local farms, so I don't really know about store bought stuff. Nancy