I've got about 25 cubic feet of used Edna's Best Potting from the last few grows. I assume all nutrients are depleted. I used organic fertilizers during the grows (Earth Juice).
Per Edna: "contains Aged Fir Bark, Sphagnum Peat Moss, Aged Redwood, Volcanic Pumice, Earthworm Castings, Washed Sand, Kelp Meal, Bat Guano, Feather Meal, Gypsum and Mycorrhizae.Oyster Shell Lime and Dolomite Lime are added as pH adjusters. A natural wetting agent, Yucca shidegera saponin, has been added to help remoisten the product."
What additives and in what amounts should I use per gallon of this used soil. (worm castings, dolomite lime, nitrogen source, etc)
Or should I just continue to buy new bags each year?
Per Edna: "contains Aged Fir Bark, Sphagnum Peat Moss, Aged Redwood, Volcanic Pumice, Earthworm Castings, Washed Sand, Kelp Meal, Bat Guano, Feather Meal, Gypsum and Mycorrhizae.Oyster Shell Lime and Dolomite Lime are added as pH adjusters. A natural wetting agent, Yucca shidegera saponin, has been added to help remoisten the product."
What additives and in what amounts should I use per gallon of this used soil. (worm castings, dolomite lime, nitrogen source, etc)
Or should I just continue to buy new bags each year?