Nitrogen, potassium, and phosphorus are all natural elements in soil. Learn how these elements benefits plants in this free gardening video about how to use organic fertilizers on plants. Expert: Michael Clark Contact: www.tropicofcapricornsantafe.com Bio: Michael Clark is a trained horticulturist with a BS in agriculture and a strong sense of responsibility for the natural world. He is the co-founder of the Santa Fe Botanical Garden. Filmmaker: melissa jenkins
2 Responses to Organic Fertilizing : Organic Materials in Soil