I have 60 gallons of depleted soil i used last year and this year im looking to move up to a 100 gallon pot. Im going 100% organic. Im going to fill the rest of the pot up with compost and im going to lay cover crop and ammend the soil. Im also going to add worms directly to the soil. My question is how much amendments shoukd i add to it and what. And when shoukd i start the cover crops. Btw i live in central california
cover crops don't do much unless they are nitro-binding legumes, and even those need to be grown, tilled, and composted for you to get that nitrogen.
If you are doing it to establish a soil web, then you'll need to mix all your soil up, age it, then fill your containers, THEN plant the cover crop.
But they'll use your available nutrients...
I gather you are using one 100 gallon pot?
I'd gather as much leaves as you can, layer in alfalfa meal, kelp meal, and crab meal, and compost it directly in the container.
I don't use cover crops on prepped soil.
Also what is the old soil?