A dynamic optimization of soil phosphorus status approach could reduce phosphorus fertilizer use by half in China.

ABSTRACT: Sustainable phosphorus (P) management is essential for ensuring crop production while avoiding environmental damage and the depletion of phosphate rock reserves. Despite local demonstration scale successes, the widespread mobilization of smallholder farmers to adopt sustainable management practices remains a challenge, primarily due to the associated high costs and complicated sampling. Here, we propose a dynamic optimization of soil P status (DOP) approach aimed at managing long-term soil P status within the range of agronomic and environmental soil P thresholds, which facilitates the precise determination of optimal P application rates without the need for frequent soil testing. We evaluate the DOP approach in 35,575 on-farm trials, and the results show that it is agronomically acceptabl

SUBMITTER: Gong H 

PROVIDER: S-EPMC11761064 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature