Effect of Row Spacing and Frequency of Weeding on Weed Infestation, Yield Components, and Yield of Rice (Oryza sativa L.) in Bench Maji Zone, Southwestern Ethiopia

Table 5

Main effect of row spacing and weeding frequencies on yield components of rice at Kuja in 2020 main cropping season.

Treatment	TT	PT	KPP	TKW
Row spacing
30 cm	200.19^c	182.85^b	129.28^c	33.83^a
25 cm	224.68^b	209.08^a	152.22^a	31.56^b
20 cm	249.74^a	226.82^a	143.28^a	29.33^c
LSD (0.05)	20.19	20.13	10.84	1.58
Weeding frequencies
One-hand weeding and hoeing at 2 WAE	230.74^bc	214.93^bc	140.00^cd	31.56^b
One-hand weeding and hoeing at 3 WAE	236.46^bc	225.54^b	153.33^bc	33.22^ab
One-hand weeding and hoeing at 4 WAE	212.82^c	195.00^c	129.33^d	31.44^b
Two-hand weeding and hoeing at 2 and 5 WAE	246.01^ab	236.72^ab	163.67^ab	33.33^ab
Weed-free check	272.00^a	257.71^a	172.33^a	35.44^a
Weedy check	151.17^d	107.61^d	90.89^e	24.44^c
LSD (0.05)	28.56	28.47	15.33	2.24
CV (%)	13.26	14.41	11.30	7.39

CV = coefficient of variation; LSD = least significant difference; WAE = weeks after crop emergence; TT = number of total tillers (no. m⁻²); PT = number of productive tillers (no. m⁻²); KPP = number of kernels per panicle; TKW = thousand kernel weights (g); means in columns of the same parameter followed by the same letter(s) are not significantly different at 5% level of significance.