 Numerous measures were undertaken by the Ayyubids to increase agricultural production . Canals were dug to facilitate the irrigation of agricultural lands throughout the empire . Cultivation of sugarcane was officially encouraged to meet the great demand of it by both the local inhabitants and the Europeans . Several new plants were introduced to Europe in trade with both the Zengids and Ayyubids , including sesame , carob , millet , rice , lemons , melons , apricots , and shallots . 
