About 53% of global cotton fields are irrigated, producing 73% of global cotton production.

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Notes:

NSI has not been able to access the primary source and would note that this information is old.

Primary Source:

1994 - Hearn, A.B., 1995: The Principles of Cotton Water Relations and their Application to Management. In: Constable, G.A.; Forrester, N. W.: Proceedings of World Cotton Research Conference - 1: Challenging the Future. Brisbane, Australia, 14-17 Feb. 1994.v

Secondary Source:

https://wwf.panda.org/?3686/The-impact-of-cotton-on-fresh-water-resources-and-ecosystems