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The Control of volunteer potatoes in the autumn in cereal stubbles.
Author(s) -
LUTMAN P. J. W.
Publication year - 1979
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1979.tb04725.x
Subject(s) - biology , glyphosate , agronomy , volunteer , weed control
SUMMARY Many of the volunteer potato plants present in two winter barley crops continued to grow after the cereal harvest. Aminotriazole applied to this regrowth resulted in 50–69% fewer potato plants emerging in the year following treatment. Glyphosate gave better control, averaging 72% in one experiment and 88% in the other. Few of the potato plants regrew after harvest of two spring barley crops and with the same two herbicides over 70% of the tubers survived. Herbicide response was not affected by dose (glyphosate 0.5‐3.0 kg/ha and aminotriazole 1.5‐4.0 kg/ha). With adequate time for the potatoes to start regrowing after harvest (3–4 wk), there was no improvement in performance from further delay. The potential use of these two herbicides in cereal stubbles for groundkeeper potato control is discussed