Abstract
Intercropping studies were conducted with Sweet Orange (Citrus sinensis L. Osbeck Cv. Agege 1) between 1996 and 1999 at the National Horticultural Research Institute, Ibadan Nigeria. The objective was to investigate the effect of different intercropping system on weed dynamics in citrus (ct) based cropping system. The intercrops were maize (m) (Zea mays L.) in the early planting season, followed by cowpea (cp) Vigna unguiculata L (Walp) in sequence during the late planting season of each year (m/cp), cassava (ca) (Manihot esculenta Crantz) and pineapple (p) (Ananas comosus (L.) merr.). Sole plots of Sweet orange (sct), maize (sm), cowpea (scp), cassava (sca) and pineapple (sp) were planted as control. Weed control efficiency of the intercrops was evaluated by 1m x 1m permanent quadrat technique. Sole citrus recorded a significantly higher (P Keywords : Weed Population; Citrus; Intercropping systems Moor Journal of Agricultural Research Vol. 6 (1&2) 2005 pp. 7-15
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