A key role for arbuscular mycorrhiza in plant acquisition of P from sewage sludge recycled to soil

摘要: Abstract Dried and incinerated sewage sludge (SS) have the potential to be used as phosphorus (P) fertilisers. Arbuscular mycorrhizal fungi (AMF) contribute plant P uptake; however, their role in uptake from SS has yet fully explored. A compartmented pot system with an isotope pool dilution approach was investigate wheat ( Triticum aestivum L.) soluble P, dried SS, via roots and/or AMF hyphae. Wheat sown into inner compartment containing a 33 label with/without Rhizophagus irregularis ) inoculum. An outer soil contained source. Compartments were separated by mesh of different sizes allow root hyphal access. Plants obtained but there limited evidence that plants AMF. Phosphorus significantly greater when both hyphae could access than only SS. We discuss results terms availability conclude play important acquisition therefore can assist recycling waste.