Baskin

Bellinder

Crutchfield

De Almeida

Kain

Luis E. Lanfranconi

Nelson

Putnam

Robin R. Bellinder

Russell W. Wallace

Shilling

Sieczka

Somody

Sweet

Van Gessel

Wall

Wallace

Experiments were conducted to evaluate the effect of tillage, rye residue levels, and control strategies on weed suppression and potato yield. Reduced tillage (RT) yields in 1989 were lower than in conventional tillage (CT) due to high hairy galinsoga populations. However, in 1990, potato yields were greater in RT when early emerging weeds were suppressed. Increasing residue levels up to 2300 kg ha−1had no effect on weeds or yields in either year. In a separate study, preemergence herbicides (linuron plus metolachlor, 1.7 kg ai ha−1each) applied 10 d after planting (DAP) in reduced tillage controlled weeds for 6 wk, but efficacy decreased after hilling. Metribuzin applied postemergence (0.19 kg ai ha−1) 7 d after hilling controlled late germinating weeds. Potato yields were greatest when the preemergence herbicides were applied.</jats:p

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Weed Technology

Grain Rye Residues and Weed Control Strategies in Reduced Tillage Potatoes

Grain Rye Residues and Weed Control Strategies in Reduced Tillage Potatoes

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