The Ubaid period in the south was associated with intensive irrigated hydraulic agriculture, and the use of the plough, both introduced from the north, possibly through the earlier Choga Mami, Hadji Muhammed and Samarra cultures.
Ubaid-perioden i syd var forbundet med intensivt hydraulisk kunstvandings-landbrug, og brugen af ​​ploven, begge indført fra nord, eventuelt gennem de tidligere Choga Mami-, Hadji Muhammed- og Samara-kulturer.