Rhizoglomus intraradices Is More Prominent in Improving Soil Aggregate Distribution and Stability Than in Improving Plant Physiological Activities

Arbuscular mycorrhizal fungi (AMF) confer positive and negative effects on many plants, but it is unclear whether AMF has an effect soil fertility, aggregate distribution, stability. The aim of this study was to analyze the Rhizoglomus intraradices plant growth, root morphology, leaf chlorophyll gas exchange, sugar concentrations, nutrients, stability in marigold (Tagetes erecta L.), maize (Zea mays white clover (Trifolium repens vetch (Vicia villosa Roth.) plants. Twelve weeks after R. inoculation, presented highest development, while dependence shown be decreasing trend > maize. inoculation significantly increased index clover, net photosynthetic rate stomatal conductance transpiration Fructose, glucose, sucrose four plants were differentially affected by intraradices. organic carbon (SOC) marigold, maize, Olsen-P available K content easily extractable glomalin-related protein (GRSP) difficultly total GRSP levels vetch. In addition, water-stable aggregates (WSAs) all plus WSA at 0.5–4 mm sizes. Root colonization positively correlated with stability, SOC, GRSP, GRSP. It concluded that AMF-triggered changes physiological activities, fertility depended species, AMF-improved distribution not dependent species.