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Journal of the Department of Agriculture, Western Australia, Series 4
Weed control, Irrigation channels, Western Australia
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Probably the major task involved in maintaining drainage and irrigation channels is the regular removal of weed growth.
The cost of hand chipping a standard head channel is approximately 10s. per chain.
The use of suitable chemicals could reduce this cost considerably.
Pearce, Geoffrey A.
"Weed control in irrigation channels,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 6:
2, Article 8.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol6/iss2/8