Yield Response of Intercropped Soybean and Maize Under Rhizobia (Bradyrhizobium japonicum) Inoculation and P and K Fertilization

ABSTRACTA 2-year trial was carried out at the Tanzania Coffee Research Institute (TaCRI) farm in northern Tanzania. The aim was to assess the response of soybean and maize yield attributes to cropping systems, rhizobia inoculation, and phosphorus (P) and potassium (K) fertilization. The study was laid out in a split-split plot design replicated thrice. The statistical analyses were performed using the 3-way analysis of variance in a factorial arrangement. The computation was performed using the STATISTICA software. The Fisher’s least significant difference (LSD) was used to compare the treatment means at p = 0.05 level of significance. The results showed that both cropping systems, rhizobia inoculation, and P and K fertilization significantly (p = 0.05) influenced most of the soybean yield parameters assessed in this study. Specifically, cropping systems significantly (p = 0.05) improved the number of pods per plant, biological yield, grain yield, and harvest index (HI) (2015 and 2016) of soybean. Rhizobi...