The products or physical matter that is extracted from plants are known as natural materials, such as cotton, vegetable, grains and timber. It studies sustainable methods of making plants more productive and resistant to diseases as well as maintaining soil nutrition and quality. This book contains some path-breaking studies in the field of plant production. Those with an interest in plant production would find this book helpful. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge. This book will serve as a reference to a broad spectrum of readers.