The effect of furrow spacing on sugarcane stalk population and yield
2001
Worku Burayu(Melkassa Reserarch Center, Melkassa (Ethiopia). Dryland Agronomist, Ethiopian Agricultural Research Organization)
In order to determine the most suitable furrow spacing, the optimum number of stalks and maximum cane and sugar yield, field experiment was conducted in Fincha valley using two factor randomized complete block design with the split block arrangement during 1994/1995 cropping year. Five furrow spacing (1.05, 1.25, 1.45, 1.65 and 1.85 m) four commercial varieties (B41227, B52298, Co449 and Nco334) were used. Tiller production was significantly superior in variety B52298 (360000 ha sup(-1)) while the survival rate of tillers was high in Nco334 in which an average of 133,000 millable canes per hectare was recorded for three cuttings. Generally, the expected sugar and cane yield were higher in variety Nco334 (about 20 and 147 tons/ha) followed by B52298 (17 and 134 tons/ha), while the least was obtained from Co449 (16 and 116 tons/ha respectively). Number of tillers and millable canes obtained at the widest spacing 1.85 m, (average of 298000 and 130000/ha, were significantly greater in all the three cuttings than that produced at the conventional 1.45m spacing of (249000 and 114000 per ha, respectively). Cane and sugar yield was expectedly high at the wider spacing of 1.65 and 1.85 cm (162 tons/ha and 22 tons/ha) compared to the 1.45 m spacing (139 and 18 tons/ha), respectively. the effect of spacing on sugar cane yield greatly varied with varieties. The variation was very prominent amongst furrow spacing for the cane sugar yield considering similar studies on the major soil types including different furrow widths is worth while.
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