Abstract: The application of phosphate fertilizer and mineral weathering are the main sources of soil phosphorus，but the low utilization rate of phosphorus and the limited ability of crops to absorb and utilize phosphorus lead to the accumulation of soil phosphorus，which limits the growth of crops.Intercropping system can improve soil phosphorus availability.The effects of intercropping on phosphorus utilization rate were summarized.The mechanism of intercropping to improve soil phosphorus availability was reviewed from three aspects：soil microorganisms，crop roots，and changes in endogenous hormones.It is suggested that in the future，we should focus on the in‑situ characterization of plant root morphology，auxin‑related gene expression，soil microorganisms and related functional genes，in order to provide reference for improving phosphorus utilization rate through intercropping.

Key words: Intercropping, Phosphorus uptake and utilization, Phosphorus availability, Root morphology, Auxin

摘要： 施用磷肥和矿物风化是当前土壤磷的主要来源，但磷的利用率低，加之作物吸收利用磷的能力有限，导致土壤磷累积，从而限制作物生长。间作体系能提高土壤磷有效性，总结了间作对磷利用率的影响，并从土壤微生物、作物根系、作物内源激素变化3个方面综述了间作提高土壤磷有效性的作用机制，建议未来重点关注植物根系形态的原位定性、生长素相关基因表达、土壤微生物及相关功能基因测定，旨在为通过间作提高磷利用率提供参考。

关键词: 间作, 磷吸收利用, 磷有效性, 根系形态, 生长素