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ARS Home » Southeast Area » Stoneville, Mississippi » Crop Production Systems Research » Research » Publications at this Location » Publication #302693
Title: Effect of drift control adjuvants on glyphosate spray drift and weed control

Author
item JIANG, JUNFENG - Northeast Agricultural University
item DING, WEI - Northeast Agricultural University
item Huang, Yanbo
item WANG, HUAIBIAO - Northeast Agricultural University
item LI, HUI - Northeast Agricultural University

Submitted to: Crops
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/15/2014
Publication Date: 6/15/2014
Citation: Jiang, J., Ding, W., Huang, Y., Wang, H., Li, H. 2014. Effect of drift control adjuvants on glyphosate spray drift and weed control. Crops. 2:146-150.

Interpretive Summary: It is of a concern that glyphosate drift may cause crop injury and reduce the yield of the off-target sensitive crop such as soybean. To investigate the methods of controlling the drift the scientists in Department of Plant Protection of Agronomy College at Northeast Agricultural University in China and USDA-ARS Crop Production Systems Research Unit collaboratively to conduct the field experiment and analyze the data to determine the effect of a number of drift control adjuvants on glyphosate drift downwind for weed control in non-glyphosate-resistant soybean. The results indicated that the effect of weed control was not affected by adding the adjuvants in tank mix and the effective drift distance downwind was significantly decreased when the adjuvants were added. The study is informative for other related studies and field herbicide application.

Technical Abstract: Glyphosate drift on to off-target sensitive soybean may cause injury and reduce the yield. To solve this problem field experiment was conducted to determine the effect of drift control adjuvants (DCA) on downwind glyphosate drift and weed control in non-glyphosate-resistant soybean. The results showed that weed control was not affected by DCA and downwind drift distance was significantly shortened when DCA was tank mixed with glyphosate and at the same time soybean plant height, chlorophyll content, and shoot and root dry weight were not significantly different from the groups of plants without DCA. Within the downwind drift distance in 12 meter at wind speed 4 m/s, DCA could minimize the injury to non-glyphosate-resistant soybean caused by glaphosate drift.