Improvement of wheat productivity and soil quality by arbuscular mycorrhizal fungi is density- and moisture-dependent

Adaptive management of arbuscular mycorrhizal fungi (AMF) provides a new option for sustainable agriculture. Previous studies showed that the functional role AMF was frequently dependent on soil moisture and planting densities in semiarid environment. However, systematic quantitative analysis effects inoculation crop productivity quality needs to be investigated. Therefore, 2-year field experiment conducted test (Funneliformis mosseae) wheat (Triticum aestivum L.) Loess Plateau under two water regimes (irrigated non-irrigated) with seven plant year 2017 2018. Our results non-irrigated treatment, greatly increased dryland aboveground biomass, productivity, use efficiency, rhizosphere organic carbon, carbon total nitrogen ratio, microbial biomass (P < 0.05) compared non-inoculated treatment. For example, plants, grain yield but inoculated plants by 59 ± 28% 36 2.8% 2018, efficiency 53 26% 25 12% respectively. different were observed irrigated conditions. In had slightly positive effect at low density negative higher densities. Here we demonstrated first time significantly improved quality, while its conditionally density- moisture-dependent. optimizing addition is an effective measure agricultural development novel solution degradation area Plateau.