Reusing Soil Between Grows
Throwing out fifty litres of soil after every CBD run gets expensive, and a used mix that had no pests or disease can be broken up, amended again with compost and minerals and left to rest before the next round. The risks are carried over fungus gnat larvae, salt buildup from bottled feeds and a pH that has drifted. A recycling recipe, plus the point at which soil is better composted than reused, is set out on https://calmcbdseeds.com. Living soil growers do this for years, bottle feeders mostly should not.
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