Here you go .....
LOVE and Earth Worm Castings ..... I feed my worms (Reds, Euros and Africans)
Karanja / Neem / Kelp / Barley / Alfalfa / Horse Poop / Bananas and Chopped Soaked Oak and Walnut Leaves along with some brown cardboard and occasional dried grass clippings ..... That’s it .....
Allow room in your container for top dressings and if your rain water is good, use that - my rain water has ppm of 23 and PH in below 7 - 6.5 or something like that but I never worry about PH in LOS, especially when soil contains 5% biochar .... Mulch over top dressings and watch soil moisture, do NOT allow pot to cycle dry / wet - rather keep in the 100-140 millibar range for entire grow until last days!