Effect of row arrangement on yield and yield advantages in sorghum/finger millet intercrops
1991
Ssekabembe, C.K. (Makerere Univ., Kampala (Uganda). Dept. of Crop Science)
A study was conducted to determine the effect of row arrangement on the yield and yield advantages in a sorghum-finger millet mixture grown at four different plant population densities. The results indicated that the yield of each species increased with increasing planting density. The sorghum yield and the total yield of the mixture were reduced when a proportion of sorghum was replaced by an increasing number of millet rows. However, the total yield of the mixture was increased when pure-stand finger millet was replaced by an increasing number of sorghum rows. Calculation of Land Equivalent Ratios (LER) revealed that the differences among the various row arrangements in terms of yield advantage were not significant, although the 1:2 sorghum + millet row arrangement gave an exceptionally higher overall yield advantage at all planting densities tested. The results suggested that a farmer interested only in maximum yield, regardless of the species it comes from, could grow pure stand sorghum, while a farmer interested in some yield from both species should grow them in a 1:2, sorghum + millet row arrangement.
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