施用蚯蚓粪对盐碱稻田土壤性质及水稻生长的影响

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中图分类号：S511；S156 文献标志码：A 文章编号：1671-4652（2026）01-0111-08

Effects of vermicompost application on soil properties and rice growth in saline-alkali paddy fields

SHEN Jiale，HAO Zequn， LI Yunlong， SHAN Yuhua， BAI Yanchao， ZUO Wengang（College of Enuironmental Science and Engineering， Yangzhou University， Yangzhou 225127， China）

ABSTRACT：This studyinvestigated the effects of vermicompost applicationon rice growth，root vigor and saline-alkali soil properties toestablishatheoreticalfoundationforsustainablericeproductioninsaline-alkalisoil.Usingricecultivar Huaidao5 in a pot experiment，five treatments were established based on vermicompost adition rates [O（control）， 0.5% ， 1.0% ， 1.5% and 2.5% of soil weight]. The results showed that vermicompost application under potting conditions increased soil organic matter，nitrogen，phosphorus nutrient contents and soil salinity，and decreased soil pH . Vermicompost aplication significantly enhanced the growth of rice roots and above-ground parts and increased rice yield， with a maximum increase of 1035.6% . The application of vermicompost increased the vigor of rice root. At the 2.5% application rate，the reduction intensity of rice root increased by 539.1% ， 387.9% and 496.4% ，while root sap volume increased by 96.9% ， 99.4% and 249.3% at tillering，heading and maturity stages，respectively，compared to control. The sap composition showed significant increases in soluble sugar and amino acid contents with higher vermicompost dosages. In conclusion，applying vermicompost was beneficial for saline-alkali soil improvement and rice growth.

KEY WORDS： rice; saline-alkali soil; vermicompost; root vigor; root sap

我国盐碱地资源丰富，其中具备较好治理条件和农业利用价值的盐碱地资源约 1.3×107hm2[1] 。（剩余14843字）