In Australia, cotton is generally grown using furrow irrigation on cracking grey clays with slow drainage, and is therefore usually subjected to some degree of waterlogging. This problem is made worse by imperfect land preparation or by rainfall after irrigation. Yield reduction of 10 to 40% have been reported (Hodgson & Chan, 1982), resulting in millions of dollars annual loss to fanners (Dennis et al 2000). Therefore, ameliorating this problem would be highly beneficial to the industry