Response of diazotrophic microbial community to nitrogen input and glyphosate application in soils cropped to soybean

Abstract

The diversity of the diazotrophic community was influenced by soil pH, soil organic carbon content, soil depth, nitrogen input, and seasonal change; liming appeared to be the most important factor affecting the nifH gene abundance. Multiple glyphosate applications at high rates may reduce symbiotic N fixation in GR soybean, especially when soybean is under certain environmental stress.