Effect of Nitrogen Fertilization and Inoculation with Bradyrhizobium japonicum on Nodulation and Yielding of Soybean

Legumes’ nutrition relies on two sources of nitrogen (N): mineral N from soil, and biological fixation (BNF). The aim this study was to verify the effect bacterial inoculation, as well compare it with different fertilization main nodulation characteristics, yield components seed soybean (Glycine max (L.) Merr.) cultivars in conditions south-eastern Poland. A randomized block design used four replications combining application rates (0, 30 60 kg·ha−1), inoculation Bradyrhizobium japonicum (HiStick® Soy Nitragina) were applied for (Aldana, Annushka). It has been shown that B. increases plant roots, yield, but no significant preparation observed. kg N·ha−1 did not result a reduction number weight nodules, including root lateral compared seeds inoculated fertilized N, observed under dose N·ha−1, resulted an increase pods per plant. For both cultivars, best combination at japonicum, regardless used.