In ancient time, the three basic needs of human being namely food, cloth and shelter were fulfilled using the plants. However, as time passed away the human requirements increased many folds. The population explosion, industrial revolution and development of transport facilities created tremendous pressure on the natural resources and some of them are depleting at an alarming rate.
If this situation continues, the future generation will have to suffer for lack of resources. There may be a lack of fresh air for breathing, pure and potable water for drinking and lack of nutritive food. Now, we have started thinking globally that how the present human needs are fulfilled without creating an imbalance in nature and without compromising the needs of the further generation. Looking into this context, the concept of sustainable agriculture has developed.