Effect of Two Legumes on the Yield Of Unfertilized Pastures at Serere

Abstract

The tropica'l legumes, Stylosanthes gracilis H.B.K. (Stylo) and Calopogonium orthocarpum Urb. (Calopo), which were introduced to Serere in 1949, were considered by 1954 t'O have potential va'lue for pastures on the relatively poor soils of eastern Uganda. They yielded weN in observation plots without the aid of fertilizers, on a soil which is of low fertility. These legumes combined reasonably well with grasses and both species carried an abundance of sma'H but apparently effective root nodules. Their agronomic characteristics in the Serere environment have been described previously (Horrell 1958 and 1963).