We use this in our orchard for all trees (both in our experimental orchard and nursery stock) as part of our holistic spray system. You can download the holistic spray recipe here.

Cold-pressed, live and nutrient-rich, this liquid fish hydrolysate is not sterilized with high heat like an emulsion. 100% no chemicals added, suitable for organic production. Excellent source of probiotics and mycorrhizae that aid the roots in nutrient and water absorption, and for earthworms that increase organic matter in the soil. 

Bottle contains 1L.  Enough to make 50L of spray mix.