Dr. Russell Sharp explains what acid rain is, how sulfur dioxide and nitrogen oxides form strong acids, and why this matters for plant health both outdoors and in hydroponic systems.
The episode covers direct leaf damage, nutrient leaching (especially calcium), soil and root impacts, and why acidic foliar sprays can mimic acid rain and harm your crops.
Practical advice: be aware of air-quality sources, test the pH of foliar sprays before use, and avoid applying highly acidic products to leaves.
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