The role of agriculture in sustainable development and poverty reduction for the vast majority of developing countries cannot be overemphasized. Forty-five percent of the developing world's population lives in households involved in agriculture, and twenty-seven percent in smallholder households, and most depend on agriculture for their livelihoods. The agricultural sector generates on average twenty-nine percent of gross domestic product (GDP), employs sixty-five percent of the labor force in agriculture-based countries, and is a key to generating overall growth.