A staple in organic farming for years, fish protein hydrolysate is a form of broken-down fish protein. Fish protein releases a controlled level of nitrogen that won’t be lost into the atmosphere like some synthetic fertilizers can when they become volatile. Additionally, fish protein works together with the microbiology of your soil, and feeds nitrifying bacteria so that additional bioavailable nitrogen can be readily available for plants. Traditionally, fish was used to rejuvenate soil and provide the necessary nutrients for heavy nitrogen feeders, such as corn and squash.
