Water, either its lack"or excess, is the main factor affecting the yield of crops and pastures in Western Australia.
Department of Agriculture and Food, Western Australia
"Waterlogging : one reason why our crops and pastures are not achieving maximum yields,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 31
, Article 2.
Available at: http://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol31/iss2/2