Agroecology is the science of applying ecological concepts and principles to the design, development, and management of sustainable agricultural systems. Agroecology is a scientific discipline that uses ecological theory to study, design, manage and evaluate agricultural systems that are productive but also resource conserving. Agroecological research considers interactions of all important biophysical, technical and socioeconomic components of farming systems and regards these systems as the fundamental units of study, where mineral cycles, energy transformations, biological processes and socioeconomic relationships are analyzed as a whole in an interdisciplinary fashion. Agroecology is a concept that inspires more and more people, but also means different things to different people. There is no single way to define or practise agroecology, but the concept unifies different groups of scientists, practitioners in the food system, and social movements. The book demonstrates how to use an ecosystem approach to design and manage agro-ecosystems for sustainability.

Dr. Raghvendra Singh Sengar, is Associate Research Scientist- I at Maharashtra Hybrid Seeds (MAHYCO), since 2007 till now, handled Regulatory Trials as well as Multi Location & Product Evaluation Trials to develop new products in the Agricultural market. Since May 1994 to 2007 worked at Quality Assurance as Regional Head (North Zone) in the same organization, apart from this since 2001 also participated as internal Auditor for ISO 9001-2000 in North Zone. He has completed his Master of Science (Botany) from Kanpur University, Kanpur presently Chhatrpati Shahu Ji Maharaj University (CSJMU), with specialization in Plant Pathology. Awarded Ph.D. in Aquatic Environmental Sciences in 1994 from University of Rajasthan, Jaipur. Dr. Sengar has published many research papers in National & International Journals. He is also life time member of Green Earth Foundation, Jaipur.