Fig. 5

a Foliar yield of N-rice plants at 12 weeks after sowing in non-ferruginous soil. Keys: N plant in non-ferruginous soil, F plant in ferruginous soil, CA Carica papaya, VA Vernonia amygdalina, MO Moringa oleifera, AZ Azadiracta indica ZO Hibiscus sabdariffa. b Foliar yield of F-rice plants at 17 weeks after sowing in ferruginous soil. Keys: N plant in non-ferruginous soil, F plant in ferruginous soil, CA Carica papaya, VA Vernonia amygdalina, MO Moringa oleifera, AZ Azadiracta indica ZO Hibiscus sabdariffa