Investigating the effects of Nitrogen and Phosphorus Fertilizer Application on Yield Attributes, Grain Yield and Quality of Rain Fed Rice (NERICA-3) in Gambella, Southwestern Ethiopia | Chapter 8 | New Visions in Science and Technology Vol. 1
During the 2008 and 2009 crop seasons, a field experiment was conducted in Imla, Gambella Zuria District, Gambella, southwestern Ethiopia, to determine the application rates of N and P fertilisers for rice variety NERICA-3 (Oryza sativa x Oryza glaberrima). Rice may provide grain yields of up to 10-18 t ha-1 in advanced rice-growing areas. However, due to poor crop management methods, its productivity in Ethiopia (2.31 t ha-1 of paddy rice) and Africa as a whole (2.31 t ha-1 of paddy rice) is well below the world average (4.35 t ha-1 of paddy rice). The treatments were factorial combinations of four rates of N (0, 46, 92, and 138 kg N ha-1) and P (0, 46, 92, and 138 kg P ha-1) (0, 23, 46 and 69 kg P ha-1) Plant height, panicle length, and grain quality are all measured in 1000 grains. Similarly, the effects of N on productive tillers plant-1, grains panicle-1, LAI, plant height, panicle length, grain yield, crude protein, ether extract, and crude fibre were significant (P (le) 0.01). W...