GroBud
Well-Known Member
Just research the difference in clay soil vs quality soil. Not nutrients like manure but what's in dirt that is natural to the environment and helps life grow. Then add that to the clay soil. Clay soil is compact so aeration will be a must. Biochar and rice hulls would suffice. There mineral rocks azomite has over 60 minerals either the rock dust, or granular. Soil has humic and fulvic acid ( I use granular humic and a soluble fulvic ). As you said worm castings, is a must. Also green sand, this takes like over a year to start breaking down but if you're reusing soil it helps loosen soil, improve moisture retention, soften hard water, increase root growth, with 20 to 30 trace minerals while being high in iron, potassium, and magnesium. As mentioned gypsum will help aeration however with biochar and rice hulls that shouldnt be needed. Gypsum will give calcium without effecting soil ph however using worm castings and tap you'll have enough calcium. Plus other things added will contain small amounts of calcium. Also look up amendments that wont burn plants like worm castings and humic acid.i would make sure to not add so much in my mix i am just looking to create some nice soil where they could grow easily
Not saying you'll never need gypsum I have a couple bags just incase its needed. Good luck bud