农业资源与环境学报2024，Vol.41Issue(3)：623-635,13.DOI:10.13254/j.jare.2023.0257
秸秆还田与无机改良剂配合对滨海盐渍化土壤特性的影响
Effects of straw returning with inorganic improver on characteristics of coastal saline soil
摘要
Abstract
Effects of straw returning with inorganic improver on the soil properties of coastal saline soils were assessed,and the improvement of saline-alkali soil quality was elucidated.Moderately saline soil originating from the Yellow River Delta was used as the experimental soil.The soil column test was used to study the effects of different straw-returning methods and their combination with inorganic improver on soil salinity and physicochemical properties.Straw mulching or tilling combined with inorganic improver promoted salt leaching and increased the total salt and salt ion contents in the leaching solution.Straw mulching and inorganic improver combined with straw mulching reduced salt content in the soil;the combination of straw and improver resulted in higher salt content in the leaching solution than straw mulching alone and inorganic improver alone.The soil salinity content was decreased in the soil layer from the surface to approximately 40 cm.The desalination rate was as high as 70.76%-83.94%,in soil of 0 cm to<20 cm,the soil organic matter increased by 10.96%and 11.96%,ammonium nitrogen increased by 23.77%and 24.01%,soil bulk weight decreased by 10.19%and 11.53%,percentage of water-stable agglomerates measuring 0.25 mm to<2 mm increased by 59.38%and 63.95%.In soil of 20 cm to<40 cm,the soil organic matter increased by 21.07%and 22.15%,ammonium nitrogen increased by 22.86%and 27.99%,soil bulk weight decreased by 7.20%and 8.13%,percentage of water-stable agglomerates measuring 0.25 mm to<2 mm increased by 39.54%and 32.67%.Straw mulching and tilling with the integrated use of inorganic improvers performed was effective for salt reduction and soil modification.The integrated strategy is the optimal modification technology to decrease soil salt and improve soil quality of coastal saline soils.关键词
秸秆还田/无机改良剂/滨海盐碱土/土柱淋洗/土壤改良Key words
straw returning/inorganic improver/coastal saline soil/soil column leaching/soil improvement分类
农业科学引用本文复制引用
王纪鹏,杨全刚,诸葛玉平,晁赢,阎祥慧,王梅,贾佳,王建新,娄燕宏,王会,潘红..秸秆还田与无机改良剂配合对滨海盐渍化土壤特性的影响[J].农业资源与环境学报,2024,41(3):623-635,13.基金项目
国家重点研发计划子课题(2021YFD190090207,2021YFD190090101) National Key Research and Development Plan Sub-projects(2021YFD190090207,2021YFD190090101) （2021YFD190090207,2021YFD190090101）
