Organic, Botany, Ecology 

A 2014 Garden Writers Association Media Award Winner Just as he demystified the soil food web in his ground-breaking book Teaming with Microbes, in this new work Jeff Lowenfels explains the basics of plant nutrition from an organic gardener’s perspective. Most gardeners realize that plants need to be fed but know little or nothing about the nature of the nutrients and the mechanisms involved. In his trademark down-to-earth, style, Lowenfels explains the role of both macronutrients and micronutrients and shows gardeners how to provide these essentials through organic, easy-to-follow techniques. Along the way, Lowenfels gives the reader easy-to-grasp lessons in the biology, chemistry, and botany needed to understand how nutrients get into  the plant and what they do once they’re inside. - from Amzon