2023/11/29 by M. Mirzaei Heydari, Mohammad Mirzaei Heydari, Robert M. Brook +2
Agricultural and Biological Sciences · #Legume Nitrogen Fixing Symbiosis #Mycorrhizal Fungi and Plant Interactions #Plant-Microbe Interactions and Immunity
paper · doi:10.1080/00103624.2023.2282996
crossref issued 2023/11/29 · crossref published 2023/11/29 · crossref published-online 2023/11/29 · openalex publication_date 2023/11/29 · crossref created 2023/11/29 · crossref published-print 2024/03/25 · crossref deposited 2024/09/24 · openalex created_date 2025/10/10 · crossref indexed 2026/07/31 · openalex updated_date 2026/07/31
Biostimulants and bioinoculants offer the potential to enhance nutrient use efficiency within agricultural cropping systems and thus reduce the amount of mineral fertilizers needed to support crop growth. Considerable uncertainty, however, exists about their efficacy under different management regimes. The present field-based study investigated the effects of phosphorus (P) solubilizing bacteria (PSB) and mycorrhizal (AMF) inoculants in the presence of a range of mineral-based P fertilizers, including triple superphosphate (TSP), struvite and rock phosphate (RP), on the growth, yield, and P uptake of barley (Hordeum vulgare L.). Two consecutive field experiments performed in a low P soil (Eutric Cambisol) revealed that the bioinoculants (PSB and AMF) promoted plant P uptake and grain yield. Moreover, in comparison to P fertilizers lacking bio-inoculants, the application of external P sources combined with bio-inoculants led to significant increases in leaf P concentration, total P uptake, plant dry matter, grain P concentration, and crop yield. Grain yield significantly correlated with P uptake by roots and above-ground parts (i.e. stems, leaves, and spikes) as well as grain P concentration in both seasons. It is concluded that bioinoculants can help improve sustainable P use ultimately leading to greater sustainability of cropping systems and resilience in soil P cycling.