Understanding the Major Nutrients Series (Nitrogen, Phosphorus, Potassium)

International Plant Nutrition Institute

$ 4.50

Recommended for Grades 4 to 8, these three booklets were created to develop an understanding and knowledge of nitrogen, phosphorus, and potassium and their vital role in our environment and crop production. The full color illustrated booklets can be used separately or together for a complete unit on the three major plant nutrients. 24 pages, 8.5 x 11 in.

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