This is an audio version of the Wikipedia Article:
00:01:13 1 History
00:06:01 1.1 China
00:07:16 1.2 Korea
00:08:00 1.3 North America
00:09:59 2 Present extent
00:11:25 3 Types of irrigation
00:11:53 3.1 Surface irrigation
00:13:34 3.2 Micro-irrigation
00:14:18 3.2.1 Drip irrigation
00:16:15 3.3 Sprinkler irrigation
00:18:35 3.3.1 Center pivot
00:20:12 3.3.2 Irrigation by lateral move (side roll, wheel line, wheelmove)sup/supsup/sup
00:22:22 3.3.3 Lawn sprinkler systems
00:25:04 3.3.4 Hose-end sprinklers
00:25:36 3.4 Subirrigation
00:27:28 3.4.1 Subsurface textile irrigation
00:28:26 4 Water sources
00:32:41 5 Efficiency
00:33:10 6 Technical challenges
00:35:40 7 Impact on society
00:38:17 8 See also
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Speaking Rate: 0.7973125703770247
Voice name: en-GB-Wavenet-B
“I cannot teach anybody anything, I can only make them think.”
Irrigation is the application of controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation. In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed or dry land farming.
Irrigation systems are also used for cooling livestock, dust suppression, disposal of sewage, and in mining. Irrigation is often studied together with drainage, which is the removal of surface and sub-surface water from a given area.
Irrigation has been a central feature of agriculture for over 5,000 years and is the product of many cultures. Historically, it was the basis for economies and societies across the globe, from Asia to the Southwestern United States.