Contents: 1.Cropping System 2.Mixed Cropping and Intercropping 3.Farming System- Scope, Importance and Concept 4.Farming System Research 5.Multiple Cropping Farming 6.Types of Farming Systems 7.Crop Diversification 8.Sustainable Agriculture 9.Organic Farming 10.Natural Farming Concept and Components 11.Recycling and Crop Residue Management 12.Natural Resources 13.Farming System in relation to Environmental Degradation 14.Research Needs for Sustainable Agriculture 15.Above-ground and Below-ground Linkages Glossary