Soybean yield and nodulation response to crop history and inoculation

Abstract

The objective of this research was to determine the influence of crop history, inoculation, and manure on soybean nodulation and yield. Earn 0.5 CEUs in Crop Management by reading this article and completing the quiz at http://www.certifiedcropadviser.org/certifications/self-study/757.

Bradyrhizobium japonicum Inoculants Have Little Effect in Kentucky's Soybean‐Corn Rotation

“…Even though there were differences between locations for overall yield, there were no differences among the inoculant treatments for seed yield. Seed yield findings corroborated previous studies where fields with a recent history of soybean throughout the Midwest (De Bruin et al, 2010; Mason et al, 2016) and mid‐South (Golden et al, 2016) did not observe a yield increase from the added inoculant. Similarly, number of root nodules were not different among the treatments, which agrees with previous findings that rhizobia within the soil produces adequate nodulation for maximum yield (Caldwell and Vest, 1970).…”

Residual Bradyrhizobium inoculation effects on soybean performance and selected soil health parameters

“…Thus, previous history of rhizobia inoculation and soybean cultivation would have a positive effect on grain yield of the subsequent soybean crop, which contradicts the earlier works of Mason et al. (2016) and Chowdhury et al. (1983).…”