Management of Palmer Amaranth (Amaranthus palmeri) in Glufosinate-Resistant Soybean (Glycine max) with Sequential Applications of Herbicides

Table 1

Interaction of experiment and soybean population for Palmer amaranth control and soybean yield^a.

Year	Soil series	Palmer amaranth control		Soybean yield
		Soybean plant population^b		Soybean plant population^b
		Low	High	Low	High
		%		kg ha^−1
2010	Nahunta	57	69*	220	430
2010	Lynchburg	80	93*	720	1190*
2011	Nahunta	82	93*	2640	3710*
2011	Lynchburg	83	89	3810	4500*

^aIndicates a significant difference at 𝑃≤0.05 within an experiment comparing low and high plant populations for Palmer amaranth control and soybean yield. Data are pooled over herbicide programs.
^bThe low soybean population was approximately 178,000 plants ha⁻¹. The high soybean plant population was approximately 483,000 plants ha⁻¹.