Organic fertilizers

Organic fertilizersare fertilizers that occur naturally in nature (e.g. compost, manure) or artificially made fertilizers composed from natural substances.

• Dolomite
• Kelp Meal
• Azomite
• Bat Guano
• Boron
• Glacial Rock Dust
• Greensand
• Gypsum
• Limestone
• Oyster Shell Lime
• Sulfate of Potash
• Worm Castings
• Zinc Sulfate
• Blood Meal
• Bone Meal
• Fish Emulsion
• Compost Tea
• Yucca Extract

• http://en.wikipedia.org/wiki/Organic_fertilizer