Research Article

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 2

Interaction effects of row spacing and weeding frequencies of rice on weed dry weight at harvest (g·m−2) at Kuja in 2020 main cropping season.

Weeding frequencies (WF)Row spacing (RS)
30 cm25 cm20 cm

One-hand weeding and hoeing at 2 WAE136.27d80.67defg50.97fghi
One-hand weeding and hoeing at 3 WAE124.97de74.00defgh41.17fghi
One-hand weeding and hoeing at 4 WAE101.67def66.33efghi34.17fghi
Two-hand weeding and hoeing at 2 and 5 WAE31.57ghi19.90ghi6.73hi
Weed-free check0.00i0.00i0.00i
Weedy check774.33a510.00b341.67c
LSD (0.05) WFXRS = 69.06CV (%) = 31.29

CV = coefficient of variation; LSD = least significant difference; WAE = weeks after crop emergence; means in columns and rows followed by the same letter(s) are not significantly different at a 5% level of significance.