Timing and Application Rate for Sequential Applications of Glufosinate are Critical for Maximizing Control of Annual Weeds in LibertyLink® Soybean

Table 4

Effect of glufosinate rate and sequential application timing on Palmer amaranth control at harvest in Fayetteville, AR, in 2015, 2016, and 2017.

Glufosinate rate (g ai ha^−1)	Sequential application timing	Control^b (%)
451	None	35	l
	7 DAI	80	fgh
	10 DAI	81	efg
	14 DAI	76	ghi
	21 DAI	73	i
595	None	43	k
	7 DAI	83	def
	10 DAI	83	def
	14 DAI	84	cdef
	21 DAI	75	hi
738	None	57	j
	7 DAI	86	bcde
	10 DAI	89	abcd
	14 DAI	84	cdef
	21 DAI	79	fgh
882	None	57	j
	7 DAI	94	a
	10 DAI	91	ab
	14 DAI	89	abc
	21 DAI	87	bcd

DAI, days after initial application. ^bMeans within a column followed by the same letter are not different according to Fisher’s protected LSD (α = 0.05).