Wheat (Triticum aestivum L.) Yield and Yield Components as Influenced by Herbicide Application in Kaffa Zone, Southwestern Ethiopia

Table 4

Effect of weed control practices on weed dry biomass weight (m⁻²) in 2020 main cropping season.

Weed management practices	60 days after crop emergence				At harvest
	Broadleaf	Grass	Sedge	Total	Broadleaf	Grass	Sedge	Total
0.5 kg ha^−1 2,4-D amine salt + one HW	57.98^b	33.38^a	36.37^bcd	127.73^b	69.12^c	14.66^e	16.05^e	99.83^f
1 kg ha^−1 2,4-D amine salt + one HW	49.45^c	33.26^a	38.05^ab	121.55^c	32.44^de	18.49^e	16.06^e	66.96^g
1.5 kg ha^−1 2,4-D amine salt + one HW	10.19^f	32.13^a	33.88^e	76.2^e	16.67^fg	17.85^e	10.51^g	45.03^i
0.4 kg ha^−1 pyroxsulam + one HW	23.33^d	11.24^c	35.29^cde	69.86^f	32.01^de	6.01^f	23.95^d	61.97^gh
0.5 kg ha^−1 pyroxsulam + one HW	16.47^e	4.58^de	37.55^abc	58.6^g	19.73^f	4.12^fg	12.75^fg	36.6^j
0.6 kg ha^−1 pyroxsulam + one HW	11.49^f	2.12^f	38.83^a	51.67^i	14.29^g	4^fg	13.6^ef	31.89^jk
0.5 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	21.35^d	12.4^c	34^de	67.76^f	27.45^e	6.32^f	21.6^d	55.37^h
0.75 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	13.77^ef	5.79^d	36.91^abc	56.47^gh	13.63^g	4.73^fg	12.93^f8	30.94^jk
1 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12% + one HW	6.26^g	2.89^ef	35.99^b-e	45.14^j	11.9^g	4.32^fg	12.37^fg	28.59^k
1 kg ha^−1 2,4-D amine salt	45.76^c	32.1^a	35.69^b-e	113.55^d	77.39^d	112.11^a	49.39^b	238.88^b
0.75 kg ha^−1 clodinafop-propargyl 6% + fluroxypyr 12%	15.47^e	4.34^de	36.43^bc	56.25^gh	95.47^b	36.73^c	61.85^a	194.05^c
0.5 kg ha^−1 pyroxsulam	12.92^ef	5.24^d	35.92^b-e	54.09^hi	64.9^c	31.41^d	39.15^c	135.47^d
Two HW 30 and 45 days after emergence	11.11^f	3.9^def	3.89^f	18.9^k	33.87^d	29.44^d	48.59^b	111.89^e
Weed-free check	0^h	0^g	0^g	0^l	0^h	0^g	0^h	0^l
Weedy check (unweeded)	82.53^a	29.43^b	37.44^abc	149.4^a	261.87^a	105.44^b	59.68^a	426.98^a
LSD (5%)	3.78	1.92	2.37	4.35	5.08	4.54	2.87	7.98
CV (%)	11.96	10.37	8.47	7.66	9.26	12.31	9.46	4.57

Same letters indicate means not significantly different at 5% level of significance. CV, coefficient of variation; LSD, least significant difference; HW, hand weeding.