研究了不同施肥模式下芹菜田的土壤结构和有机碳组分变化。结果表明，化肥配施有机肥可降低土壤容重，提升土壤总孔隙度，提高水稳性团聚体含量，增加有机碳及其碳组分含量。其中以增施有机肥6 000 kg/hm2和4 500 kg/hm2处理的效果最为显著，建议该区芹菜在施用化肥的同时添加有机肥4 500～6 000 kg/hm2。

The changes of soil structure and organic carbon components in celery fields under different fertilization modes were studied. The results showed that the combined application of chemical fertilizer with organic fertilizer could reduce soil bulk density， improve soil total porosity， increase the content of water-stable aggregates， and increase the content of organic carbon and its carbon components. Among them， the effect of adding organic fertilizer 6 000 kg/hm2 and 4 500 kg/hm2 was the most significant. It is suggested that 4 500 ~ 6 000 kg/hm2 organic fertilizer should be added to celery when fertilizer is applied.

S152.4