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1 October 2003 Effect of Several Herbicides on Green Pea (Pisum sativum) and Subsequent Crops
TIMOTHY W. MILLER
Author Affiliations +
Abstract

Five herbicides were tested in green pea, and their residual effects on several rotational crops were investigated in northwestern Washington from 1998 through 2000. In both years, imazamox applied postemergence caused 21 and 28% early-season injury at 0.036 and 0.045 kg/ha, respectively, but only in 1999 did early-season injury result in yield loss compared with nontreated, weedy pea. Trifluralin, clomazone, and sulfentrazone caused 15 to 19% injury to pea in 1998 but not in 1999. Although pea treated with sulfentrazone produced more harvestable pods than nontreated pea (5.0 and 4.1 pods/plant, respectively), pod numbers were similar to peas treated with clomazone, pendimethalin, pendimethalin plus imazamox, or trifluralin. All rotationally grown crops were tolerant to herbicides used in green pea, except for strawberry in 1999, in which leaf area was reduced 23% in plots treated with 0.045 kg/ha imazamox compared with nontreated plots. Intensive tillage combined with favorable soil and climatic conditions in this study indicate that western Washington green pea producers may have greater flexibility in their choice of herbicides and rotational crop alternatives than previously believed.

Nomenclature: Clomazone; imazamox; pendimethalin; sulfentrazone; trifluralin; green pea, Pisum sativum L; strawberry, Fragaria × ananassa Duch.

Additional index words: Carry over, rotational crops.

Abbreviations: POST, postemergence; POTR, posttransplant; PPI, preplant incorporated; ppt, precipitation; PRE, preemergence; UAN, urea–ammonium nitrate.

TIMOTHY W. MILLER "Effect of Several Herbicides on Green Pea (Pisum sativum) and Subsequent Crops," Weed Technology 17(4), 731-737, (1 October 2003). https://doi.org/10.1614/WT02-127
Published: 1 October 2003
JOURNAL ARTICLE
7 PAGES


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