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 4

Main effect of row spacing and weeding frequencies on phenological and growth parameters of rice at Kuja in 2020 main cropping season.

Treatment	DH	DPM
Row spacing
30 cm	61.25^a	88.83^a
25 cm	61.10^a	88.83^a
20 cm	61.08^a	88.78^a
LSD (0.05)	NS	NS
Weeding frequencies
One-hand weeding and hoeing at 2 WAE	61.00^c	89.00^b
One-hand weeding and hoeing at 3 WAE	61.00^c	89.00^b
One-hand weeding and hoeing at 4 WAE	62.00^b	89.00^b
Two-hand weeding and hoeing at 2 and 5 WAE	60.17^d	87.89^c
Weed-free check	59.00^e	87.00^c
Weedy check	63.70^a	91.00^a
LSD (0.05)	0.83	1.07
CV (%)	1.42	1.26

CV = coefficient of variation; LSD = least significant difference; WAE = weeks after crop emergence; DH = days to 50% heading; DPM = days to 90% physiological maturity; PH = plant height (cm); PL = panicle length (cm); means in columns of the same parameter followed by the same letter(s) are not significantly different at 5% level of significance.