This easy-to-follow book is an ideal source of information for anyone interested in learning the science behind plant nutrition, but reluctant to do so for fear of the daunting nature of the scientific world and incomprehensible jargon. Giving step by step formulation instructions and calculation shortcuts, this book provides the information needed to create a customized hydroponic nutrient formula. Also included are information regarding deficiency and toxicity symptoms, scientifically tested nutrient recipes for some of the most popular crops, and pH relations. You will never look at your nutrient solution the same way again.