Intercropping Sorghum (Sorghum bicolor L.) and Cowpea (Vigna unguiculata L.): Effect of Bradyrhizobium Inoculation and Fertilization on Minerals Composition of Sorghum Seeds
Figure 3
Effect of inoculation, N, P, and intercropping (sorghum/cowpea) on zinc (a) and copper (b) contents of rainfed sorghum seeds grown for two consecutive seasons.