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Plant Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2019

Kansas State University Libraries

Residual control

Articles 1 - 3 of 3

Full-Text Articles in Plant Sciences

Split Applications Of Coyote And Lumax For Efficacy In Grain Sorghum, R. S. Currie, P. W. Geier Jan 2019

Split Applications Of Coyote And Lumax For Efficacy In Grain Sorghum, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

In an effort to determine the efficacy of herbicide application timing in sorghum, full herbicide rates were applied 14 days preplant, and compared with split applications of half rates applied at two timings. Generally, weed control was best when half of the labeled rates were applied 14 days preplant followed by the other half preemergence, compared to full rates applied 14 days preplant. However, control of velvetleaf and common sunflower was excellent (95% or more) regardless of when the treatments were applied. Grain sorghum yields were similar among all herbicide treatments, and each treatment increased yield from 2 to 2.5-fold …


Comparison Of Preemergence Herbicides For Residual Weed Control In Grain Sorghum, R. S. Currie, P. W. Geier Jan 2019

Comparison Of Preemergence Herbicides For Residual Weed Control In Grain Sorghum, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

Herbicides were studied to determine preemergence efficacy in grain sorghum. Velvetleaf and quinoa control did not differ between herbicides late in the season, and no treatment controlled puncturevine more than 81%. The three-way mixture of Callisto, atrazine, and Dual Magnum controlled Palmer amaranth and green foxtail as well as or better than any herbicide tested, whereas most herbicides controlled kochia 88% or more. Compared to the nontreated controls, all herbicides increased sorghum yield 46–146% except Callisto alone at 6 oz/a.


Anthem Maxx Tank Mixture Comparisons In Irrigated Corn, R. S. Currie, P. W. Geier Jan 2019

Anthem Maxx Tank Mixture Comparisons In Irrigated Corn, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

The use of multiple herbicide modes of action in single versus sequential applications was examined for efficacy in corn. Common sunflower control was complete with all early postemergence and postemergence herbicides late in the season. Control of Russian thistle, Palmer amaranth, and green foxtail were 95% or more with all early postemergence and postemergence herbicides except Halex GT. All herbicide treatments increased grain yield 15–33% compared to the nontreated controls except Halex GT applied early postemergence.