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Sojka, R.E. (1996) Irrigation. In: McGraw Hill Yearbook of Science & Technology - 1997. pp. 258-259. McGraw-Hill Inc., New York.

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Recent inventories suggest that about 15-17% of
the world's cultivated cropland is irrigated. About
40% of these acres were developed after 1960 to
meet the food and fiber needs of the world's population,
which grew rapidly after World War II in
response to medical and hygienic advances. The
lack of significant new water resources and the cost
of developing present ones have caused irrigated
acreage to plateau at around 6 x 10^8 acres (2.4 x 10^8
hectares) since the late 1980s. Recent advances in
irrigation include the further development of sprinkler

Item Type: Book Section
NWISRL Publication Number: 0918
Subjects: Mass Import - unclassified
Depositing User: Dan Stieneke
Date Deposited: 20 Nov 2010 21:55
Last Modified: 22 Nov 2016 22:43
Item ID: 795