Factories produce urea [CO(NH₂)₂] from ammonia and carbon dioxide under high pressure/temperature. Ammonia is highly volatile—requires specialized equipment. Impossible safely at home.
No. Urea is not made from N₂ + H₂SO₄. The Haber-Bosch process makes ammonia from N₂ + H₂; then ammonia + CO₂ → urea.
Black Specks on Cut Roses: Insect Frass, Not Current Infestation
Why Urea and Heavy Fertilizer Regimens Harm Roses: Stick to Slow-Release
Honeydew Causes and Persistence: Insect-Driven, Not Weather
Windthrow: Act of God or Preventable Failure?
Kiddie Pool Bog Gardens: Black Plastic, Natural Ecosystems, and Heat Management
Coriander (Cilantro) Bolting Solutions and Year-Round Growing
American Ginseng (Panax quinquefolius): Traditional Use and Modern Dosage Guidelines
Herb-Birth Control Interaction: Vitex/Wild Yam with Ortho-Cept
Oleanders Yellowing & Dropping Leaves in SW Florida? Likely Overwatering—Ease Off Irrigation
Best Ground-Hugging Perennials for Sun: Sedums and Ice Plants Under 2 Inches
Pruning Unknown Clematis: Safe Strategy for 3-Year-Old Vines
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