sentences:  This woreda has been the major center of cotton production inside Ethiopia since the 1950s.In 2003/2004, 21.1 square kilometers were planted in cotton, yielding 168,592 qt of crop.Gum arabic and incense are important cash crops in this woreda; the principal species which produce incense is "Boswellia papyrifera", while "Acacia seyal" and "A. polyacantha" are harvested for their gum.