Notes:
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Cover title.
Contaminated Karoo canola seed : 1996 : information package for growers -- Farmnote no. 51/96, managing triazine residues in triazine-tolerant canola / Terry Piper -- Farmnote no. 52/96, Weed control in triazine-tolerant canola / Terry Piper -- APB Infonote 3/89, Declared plants and animals.
(En)
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