2.  Basin irrigation is still used today. It consists of a field enclosed by a raised bank called a dike. The water is allowed to flood the field and the sediment forms a deep layer of mud.  Basin irrigation was the preferred method of distribution in ancient civilizations, specifically ancient Egypt.

3.  Water runs on a sloping ground from one end of the field to another.  This method is often combined with furrows to enhance efficiency.

4.  Furrowed irrigation is created by cutting channels (ditches) within the field by a plow. Water runs down the channels.

5.  Overhead irrigation distributes water from above using a sprinkler system.

6.  Drip irrigation is created by running water into tubes at ground level that have drip emitters (small holes) near the base of the plants.  Delivers water nearly directly to the plants’ roots.

7.  Sub soil irrigation relies on buried water lines that deliver water underground with no surface evaporation.