Cereals, Weed control, Herbicides
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PROBABLY the simplest way of obtaining an increase in crop yield is to control the weeds present.
Nearly a million acres of cereal crops are sprayed by aircraft each year and when the area treated by ground units is added, something like 20 per cent of the total area sown is sprayed with herbicides.
Pearce, Geoffrey A.
"The control of weeds in cereals,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 8
, Article 3.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol8/iss4/3