Enhanced rock weathering increased soil phosphorus availability and altered root phosphorus acquisition strategies

Enhanced rock weathering (ERW) measures are considered for CO2 removal with potential for additional organic C sequestration potential (Beerling et al., 2020; Goll et al., 2021). The effects of this practice on the soil phosphorus (P) pools and the general mechanisms affecting microbial P cycling, as well as plant P uptake are not well understood. Here, the impact of ERW on soil P availability and root P-acquisition traits were explored through a two-year wollastonite field addition experiment in a tropical rubber plantation.