Both field and pot experiments were carried out to study effects of interaction between soil moisture content and P application rates on biomass and yield of rice cultivated in aerobic soil.The results show that the effects of soil moisture content and P application rate were significant on biomass and yield of rice growing in aerobic soil,and the interactive effect of the two factors was very evident,showing a sequence of grain>shoot>root.Although the biomass and)field of rice had been hardly-affected by soil moisture content,when it was 80% or 100% of saturated water content(SWC),but markedly by soil moisture content 60% of SWC.Biomass and yield of rice increased with the increasing in P application rate:in the aerobic soil,showing that the soil moisture content 80% of SWC was enough to maintain rice growth in the aerobic soil.In order to gain higher yield of rice,it is essential to pay attention to P application or take some measures to improve soil P utilization efficiency.