B. van den EndeIrrigation Research Institute, Tatura, Victoria 3616, Australia
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D. J. Chalmers
D. J. ChalmersIrrigation Research Institute, Tatura, Victoria 3616, Australia
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Contributor Notes
Received for publication Sept. 4, 1981.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.