Soybean (Glycine max (L) Merrill is one of the oldest crops of the world. Nutritionally, soybean seed has been considered to be the best of all pulses because of its high protein contents. Today, it is the largest source of oil for human consumption as well as protein for livestock feed. This book reviews the soybean crop, its nutritive value, seed description, anatomy and growth, nodulation, complete production technology and various biotic diseases. This book also covers part of original research on biological control of charcoal rot (Macrophomina phaseolina) (Tassi.) Goid of soybean.