The Handbook of Plant Nutrition provides a readily accessible source of current information on the nutritional requirements of significant crops. The editors provide an overview of plant nutrients and beneficial elements, explaining diagnostic criteria and current research approaches. Each of the 20 chapters is dedicated to an essential nutrient or beneficial element. Written by eminent researchers, each chapter offers historical information on the specific nutrient, explains how a plant's appearance and composition can be used to assess nutritional status, discusses the value of soil tests, and recommends remedial fertilizers.