For People and the Environment Series (Nitrogen, Phosphorus, Potassium)

International Plant Nutrition Institute

$ 4.50

Three (3) colorful booklets explain the origins of nitrogen, phosphorus, and potassium in an easy-to-understand format. Photographs, illustrations, and text demonstrate the role of these nutrients in our environment. 8 pages, 8.5 x 11 in. Note: For customized order sizes contact:

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