Browse on keywords: crop rotation WA peas
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8608. Young, F.L.. 1990. IPM systems research.. unpublished handout from USDA-ARS Weed Research Unit, Pullman, WA 99164.
The IPM Weeds study near Pullman, WA uses two 3-yr crop rotations, two tillage systems, and three weed management (herbicide) levels. Spring pea average yields after 3 yr were higher with chisel plow than with moldboard plow, slightly responsive to increased weed management level, and highest with maximum weed management/chisel plow combination.