cheap and easy.. All these items are easy to find.. the bat guano might be some trouble to find..
4 parts:Soybean meal
1 part:Bone meal
1 part:Agricultre lime/1 part:Dolmitic lime..
1/2 part:Seaweed extract
1 part:Wormcasting
1/2 part:Gypsum
1 part:Bat guano (phos) (1/2 if you are shisty.)...
instead of using seaweed.. i got some seaweed extract, you can usally find it at a garden shop.. its all oragnic.. and super potent. i mix it with my bat guano..