ABSTRACT
Global food security is threatened by several factors, but most probably by increasing population and increased food demand. Changing life styles and rapid increases in the urbanization have altered the need of food consumption. The major reason of all these issues is yield instability of agricultural crops, this instability is most probably due to the prevailing monoculture methods. Crop diversification is an indispensable drive towards sustainable agriculture and achieving nutritional security. Crop diversification can cause reductions in risks related to climatic variability and to biotic, especially in fragile ecosystems, and fluctuations in commodity by introducing unique varieties or increasing locally adapted varieties and will help to improve food security and generate income for resource-poor farmers (Mahapatra and Behera, 2004). Making space for commercial crops, which includes moringa, stevia, quinoa and soybean in the agro-ecosystem have greater potential to boost household incomes of farmers. Moreover these crops may help to sustain the food consumption demand and reduce poverty around the world. In an agro-ecosystem, crop diversification offers improved household income, creates a chance for alternative foods, and ultimately improves the balance of nutritional diets. Crop diversification reduces the chances of destabilization of income by reducing the failure risks of crops. Crop diversification offers reasonable solutions for the better and improved utilization of agricultural resources such as land and water; it provides a give good opportunity to famers to produce the variety of foods needed to fulfill the food requirements of the empty stomachs of the increasing population. Crop diversification ensures economic livelihood, ecological reliance, and economic security.
