Reason for trying to understand cow flow chemicals. NMSU claims that chiles like a nitrogen level of 1.5 and phosphorus at 1.5. Reading all the chemical combinations at NMSU, Cow manure come the closest to the ideal for chiles at 1.74-0.5-1.5. Feeding some potted plants, 2 oz of manure tea per gal of water These plants seem to do the best of any combination of low nitrogen fertilizers that I have tried. If bagged composted cow manure cost $1.99 in your area this means the cost per gal of fertilizer is $0.000032+ per gal Or if you can it by the pick up load you can make a little over 16,000,000 gals. BTW Feeding plants with this 1. Cats don't seem to play in it 2. The plants are the greenest I have ever seen under growlights. 3. Don't think you need mag sulphate or calcium carbonate. Byron