Maize yield in Sudan as influenced by inorganic and organic fertilizers

The main objective of this research was to investigate the effect of chemical fertilizer, organic fertilizer and a combination of the two on maize (Zea mays L.) yield in Sudan. Three levels of fertilizer: 86 kgN/ha, 4 tonnes chicken manure/ha. and a combination of 43 kg N/ha. + 2-ton chicken manure/ha were applied on cultivar Mogtama 45. Field experiments were conducted for two consecutive seasons, 2010/11 and 2011/12 at the Experimental farm, Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Gezira State (Sudan). The results showed that maximum plant population and yield were obtained on application of a combination of the two types of fertilizers in both seasons. In addition, the highest plant height, head weight, 100-seed weight and grain yield were obtained when a combination was used. These results will indirectly encourage farmers to keep poultry.