Nutrient Resources

1 Introduction Phosphorus (P) and water are essential for plant growth and play key roles in regulating soil fertility and plant productivity (Han et al. 2022; Marschner 2012; Shen et al. 2011). Phosphorus in the soil solution is the only form directly available to plants and is rapidly taken up by the roots (Lambers 2022; Marschner 2012).

Bennett JA, Maherali H, Reinhart KO, Lekberg Y, Hart MM, Klironomos J (2017) Plant-soil feedbacks and mycorrhizal type influence temperate forest population dynamics. Science 355:181–184 PubMed Google Scholar Berns AE, Philipp H, Narres HD, Burauel P, Vereecken H, Tappe W (2008) Effect of gamma-sterilization and autoclaving on soil organic matter structure as studied by solid state NMR, UV and fluorescence spectroscopy.

ORIGINAL RESEARCH article Volume 17 - 2026 | https://doi.org/10.3389/fpls.2026.1754594 This article is part of the Research TopicPlant Physiological and Mechanistic Responses to Saline–Alkaline SoilsView all articles Highlights ● Treatment with organic ameliorants combined with microbial agents (O+M) boosts the SOC by 10% compared with O treatment in saline–alkali soils. ● O+M induces a shift toward bacterial K-strategists driven by an improved nutrient availability and stoichiometric balance.