Fig. 5From: The effect of phosphorus and nitrogen fertilizers on grain yield, nutrient uptake and use efficiency of two maize (Zea mays L.) varieties under rain fed condition on Haplic Lixisol in the forest-savannah transition zone of GhanaEffect of nitrogen and phosphorus fertilizer on Obatanpa maize grain yield at Ejura during the major and minor season, 2008 (for legend, see Fig. 3)Back to article page