International Journal of Agronomy

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 6

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


Treatment	AGDB	GY	SY	HI

Row spacing
30 cm	9486.1^b	3563.0^c	5923.1^a	36.09^c
25 cm	10295.4^a	4303.0^a	5992.4^a	40.79^a
20 cm	10164.8^a	3978.0^b	6186.8^a	38.03^b

LSD (0.05)	676.56	304.78	NS	1.71

Weeding frequencies
One-hand weeding and hoeing at 2 WAE	10187.0^c	4026.4^cd	6160.6^a	39.37^cd
One-hand weeding and hoeing at 3 WAE	10601.9^bc	4355.3^bc	6246.5^a	40.95^bc
One-hand weeding and hoeing at 4 WAE	10146.3^c	3801.0^d	6345.3^a	37.19^d
Two-hand weeding and hoeing at 2 and 5 WAE	11237.0^ab	4743.4^b	6493.7^a	42.18^b
Weed-free check	11696.3^a	5226.7^a	6469.6^a	44.92^a
Weedy check	6024.1^d	1535.3^e	4488.8^b	25.2^e

LSD (0.05)	956.81	431.03	625	2.42
CV (%)	10.01	11.40	10.81	6.60

CV = coefficient of variation; LSD = least significant difference; WAE = weeks after crop emergence; AGDB = aboveground dry biomass of rice (kg ha⁻¹); GY = grain yield (kg·ha⁻¹); SY = straw yield (kg·ha⁻¹); HI = harvest index (%). Means in columns of the same parameter followed by the same letter(s) are not significantly different at a 5% level of significance.