Description
Gypsum (Calcium Sulfate) – The Ultimate Soil Savior for Compacted & Saline Soils
Struggling with hardpan, poor drainage, or salty soil? Gypsum delivers a double-dose of soluble calcium & sulfur—naturally breaking up clay, flushing out sodium, and boosting crop flavor & immunity without altering pH.
Why Every Grower Needs Gypsum
✔ Fixes Sodic Soil – Displaces sodium (reduces soil salinity)
✔ Loosens Compacted Dirt – Improves water infiltration & root penetration
✔ Balances Ca:Mg Ratio – Prevents clay flocculation (no more concrete-like soil)
✔ Sulfur Powerhouse – Essential for terpenes, glucosinolates & nitrogen fixation
The Science of Organic Gardening Solutions Gypsum
1. Structural Benefits
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Calcium → Binds clay particles into crumbly aggregates (better air/water flow)
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Sulfate → Forms soluble complexes that leach away excess sodium
2. Biological Benefits
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Fe-Mo-S Clusters → Activates nitrogenase enzymes (better N-fixation in legumes)
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Glutathione Precursor → Boosts plant immunity against oxidative stress
Pro Tip: For heavy clay soils, apply 1kg/m² gypsum + deep water to 18" depth for maximum effect.
Gypsum vs. Lime vs. Epsom Salt
| Feature | Gypsum (CaSO₄) | Lime (CaCO₃) | Epsom Salt (MgSO₄) |
|---|---|---|---|
| pH Effect | Neutral (no change) | Raises pH | Slightly acidic |
| Primary Use | Soil structure + S | pH correction | Magnesium deficiency |
| Speed | Works in 2-4 weeks | 3-6 months | 1-2 weeks |
| Salt Leaching | Excellent (removes Na) | None | Can increase salinity |
Who Needs Organic Gardening Solutions Gypsum?
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Clay Soil Growers – Turns brick-like dirt into workable loam
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Coastal Farms – Mitigates saltwater intrusion damage
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Cannabis Cultivators – Enhances terpene production via sulfur
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No-Till Farmers – Prevents calcium depletion without tillage
"Applied gypsum before planting tomatoes in compacted soil—yields increased 37% just from improved root growth!" – Regenerative Farmer