Organic fruit tree fertilizer for containers

[PunaGreenTree]

What do you all recommend? Looking for something higher in Nitrogen to promote vigorous growth. We have been using neem cake for 6-1-2, and a happy frog product for 6-4-5 and are happy with those but looking for other options, preferably less expensive. Thanks!

[spaugh]

EB stone and fox farms both have organic 7-3-3 avocado food.  And theres fish emulsion 5-1-1.

None of it is going to be cheap especially if you are having it shipped to HI. 

[RodneyS]

For long term, compile your own compost piles.  Doesn't get cheaper than that.

[Finca La Isla]

Worm compost.
Aged chicken manure, best what comes from laying hens rather than meat birds.

[RodneyS]

I also use worm castings from my worm compost bin, but I didn't recommend it because he specifically wanted something high in N. 

[K-Rimes]

I have used Dr Earth natural solid fertilizers with good success, it's not cheap.
I have used Fox Farm liquid nutrients with admirable success, very expensive.
I have used worm castings, I didn't see a huge growth flush, and sort of expensive.
I have used chicken manure, cheap as S*it, and works great. This one really makes them go, and at $6 a bag it's hard to ignore. It does smell bad for a week or so though.

[SeaWalnut]

Urine has 10-1-1 .I use that in my orchards thogh not for potted trees.Needs to be diluted 10:1 .Has a little salt in it but thats not a problem because over time the humic acid will neutralise the salt.
Second option its urea fertiliser ,non explosive one not urea nitrate ( this is explosible half the power of TNT).It has like 40-0-0 but its not organic( meaning its not bio).
I only need to add nitrogen fertiliser for my trees,the Pand K are easy to get from.dead vegetation,leaves,grass clippings ,etc.

[PunaGreenTree]

Thank you for all of the great suggestions!