With so many people wanting to know the hows, whys and wherefores, I thought it would be good to do up a post on how to make fermented milk fertiliser.
Sorry... Petunia is only precise when it comes to real work. Hobbies are approached with utmost artistic agaration. Cover and let ferment for 5 days... or 4... or 6... Ummm.... agaration, remember? Every once in a while, you take a scoop and then "tarik" the solution to introduce air into the mixture.
When you are ready to use it, draw out one pail (normal laundry pail size) of the fermented solution and keep it aside to start the next lot of fermented milk solution. This way, you don't have to use anymore Yakult/yoghurt/acidophilus capsules for the next batch.
By the time it is ready to use, the milk would have coagulated into a sedimentary layer at the bottom of the huge pail. Use a bamboo pole to mix it up. Dilute your solution with one part water and one part ferment. Water to soil. This solution seems to kill soil mealies and fungus gnat babies real good too.
Don't give to plants more than 3 days successively. And oh yes... once in a while, I throw in a packet of baker's yeast. The whole idea is to grow as much bacteria or yeast as you can, that will break down the milk and release the nutrients in a form the plant can absorb.