Field experiments on multipurpose trees
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CTA. 1991. Field experiments on multipurpose trees. Spore 33. CTA, Wageningen, The Netherlands.
Permanent link to cite or share this item: https://hdl.handle.net/10568/45534
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Several species of multipurpose trees have been undergoing screening in experimental sites m Burundi, Kenya, Rwanda and Uganda. Calliandra calothyrsus and Sesbania sesban produced large biomass at all sites, out performing any of the Leucaena...
Several species of multipurpose trees have been undergoing screening in experimental sites m Burundi, Kenya, Rwanda and Uganda. Calliandra calothyrsus and Sesbania sesban produced large biomass at all sites, out performing any of the Leucaena species. However, if cut too frequently S.sesban tended to die out, but less frequent cutting resulted in competition with adjacent crops. Ficus semicordata, Schima wallichii and Croton megalocarpus showed promise for fodder and green manure production on sites above 2000m elevation. At the same elevation Grevillea robusta, Casuarina cunninghamiana and Alnus acuminata all showed good potential as upper storey trees. Hedgerow-intercropping trials in western Kenya using L. leucocephala, C.calothyrsus, Gliciridia sepium, S.seban, Cassia siamea and Erythrina caffra with interplanted maize showed a maize dry-grain yield of 10-50% higher under hedgerow intercropping than without. Other sites in Burundi, Kenya and Rwanda trialled multipurpose trees in combination with fodder grasses on contour bunds. Early results were promising, particularly with the combination of Leucaena and Pennisetum. ICRAF, PO Box 30677, Nairobi, KENYA
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