Sand-based fertilizer mined from dried ocean deposits. Helps loosen clay soils. Apply in autumn. Broadcast 10 lbs. High in potassium and micronutrients.
Solid form adds organic matter.
For the solid, work about 10 lbs. For the liquid, follow label directions for dilution. Also adds magnesium and sulfur. Broadcast up to 1 lb. The easily dissolved potassium can burn plants if you apply too much.