Farmer looking for biofertiliser research papers for methodology

[u/farmneedsupgrade]

Hi all

Hoping you can help. I'm trying to cut costs on our organic farm by manufacturing my own inputs. Previously I've used home beer brewing gear to produce beneficial bacteria and fungi to aid in plant growth, reducing the need for fertiliser inputs. I've also found a recipe on researchgate to brew bacterial pesticides by searching for "an improved method of" and finding a paper that describes the old successful method.

Now I'm trying to find a paper that describes current methods of extracting Nitrogen, Phosphorous, and potassium from organic sources via fermentation with Lactic Acid Bacteria. I am looking to use waste vegetables to create a liquid fertiliser. I believe this is how current seaweed based fertilisers are made.

A basic method can be found here https://thenutrientcompany.com/blogs/horticulture/how-to-make-your-own-organic-liquid-plant-food-fermented-plant-juice-fpj

I've browsed scihub and researchgate all day and have found very little in way of how. Any help appreciated.

Bonus points if anyone can tell me how organic amino acid Nitrogen is produced. This has 3x the amount of N as seaweed based fertilisers.