Our county offers compost. ($20 for 6 yards.) They've had it
analyzed,
https://ocrra.org/app/webroot/img/ga...-q2-071414.pdf

The reported nitrogen value seems quite high (2% by dry weight).
However, our retail soil tester, says the N is quite low.
Possibilities I can imagine:
(a) "organic nitrogen" is not really available, and we should add
something that is.
Or,
(b) Our soil tester is just looking for ammonium, and misses the
"organic"

If anyone knows more about this, I'd appreciate hearing.

G