Note: Depending on your shipping address, 50-pound items may ship as two 25-pound bags. Dolomite Lime Powder for Soil pH Up treats acidic soil by sweetening it and, when added before planting, acts slowly to support vegetation. It contains 22.7% calcium and 11.8% magnesium, nutrients some organisms need to adjust soil pH. In addition to pH adjustment, this lime serves as a component in fertilizer mixes, speeds composting, and can enrich animal feed or aid magnesium-deficient terrain. Apple, citrus, and pear trees respond to its addition. For garden beds, apply 2β10 pounds per 100 sq ft and repeat after 6 months if needed. For lawns, apply the same amount in winter as your total yearly lawn food. π Product summary: Composition: 22.7% calcium and 11.8% magnesium. Slow-acting lime; add to soil well before planting. Uses: pH adjustment; component in a nutritious fertilizer mix; speeds up composting; enriches animal feed; helps magnesium-deficient terrain; beneficial for apple, citrus, and pear trees. Application guidelines: garden beds 2β10 pounds per 100 sq ft (lower for sandy soils, higher for heavy soils); lawns receive the same amount in winter as total annual lawn feeding; pH-tuning amounts per 100 sq ft to reach 6.5β6.8: 4β12 lb, 4.5β10 lb, 5β7 lb, 5.5β5 lb. Current Soil pH Level Desired Soil pH Level Amount of Dolomite Required per 100 sq.ft. 4 6.5-6.8 12 Pounds 4.5 6.5-6.8 10 Pounds 5 6.5-6.8 7 Pounds 5.5 6.5-6.8 5 Pounds