Residual <i>Bradyrhizobium</i> inoculation effects on soybean performance and selected soil health parameters

The persistence of inoculants from year to in soybean [Glycine max (L.) Merr.] cultivation and the residual benefits production are pertinent adopting such practices sub-Saharan Africa countries as Ghana. A study was conducted determine effect commercial rhizobium on selected soil health parameters after three cropping seasons. experimental design a split-plot. main plot consisted cultivars (Jenguma, Afayak, Songda), subplot comprised peat-based bradyrhizobium (Biofix, Legumefix, NoduMax) an uninoculated control. Assessments were made nodulation, shoot dry matter (DM), grain yield, total N uptake, permanganate-oxidizable carbon (POXC), pH, potentially mineralizable C. Among cultivars, Afayak produced greater nodule mass lateral root whole system compared with other cultivars. Jenguma yielded DM relative Songda. Regarding inoculants, Biofix increased NoduMax superior yield also than Legumefix. pod harvest index improved uptake by Legumefix Commercial enhanced POXC availability at harvest, whereas C declined inoculation treatments. (Biofix indicators 3 yr inoculation.