Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process so that it contains all the nutrients, vitamins, enzymes and natural growth hormones. It is filtered down to 120 mesh and can be used in drip line systems. Phosphoric acid is used as a pH stabilizer and as a source of phosphorus that plants need. Can be sprayed as a foliar spray or watered into plants.