Soil fertility is an integral part of agriculture and this book unravels the recent studies in this field. Key characteristics of soil like porosity, aeration, texture and drainage determine the quality of the soil. The presence of organic matter, nutrition and soil biota are also essential for the growth of crops. Methods that increase soil nutrition are also important topics of this area of study. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject. Students, researchers, experts and all associated with soil science and agriculture will benefit alike from this book.