浙江大学学报（农业与生命科学版）2026，Vol.52Issue(1)：85-98,14.DOI:10.3785/j.issn.1008-9209.2024.12.314
组合调理剂对酸化稻田土壤的降酸培肥潜力及机制
Potential and mechanism of combined conditioners for deacidification and fertility improvement in acidified paddy soil
摘要
Abstract
To investigate the effects of single and combined applications of soil conditioners on the remediation of acidified paddy soil,a completely randomized block field experiment was conducted to evaluate the potential and mechanism of different soil conditioners(Tuwobao,Haoyigeng,Fengshouyan,biochar,organic fertilizer)and their combinations on the deacidification and fertility improvement of acidified paddy soil.The results showed that the application of a single conditioner did not significantly improve the soil pH value,pH buffer capacity,contents of organic matter,alkali-hydrolyzable nitrogen or available phosphorus.Except for the treatment with biochar and organic fertilizer,the combined application of two conditioners showed better deacidification effects:treatments with biochar+Tuwobao,biochar+Fengshouyan,and organic fertilizer+Fengshouyan reduced the total soil exchangeable acidity by 51.28%,47.86%,and 46.15%,respectively,compared with the control(without conditioners).In terms of improving soil fertility,the combined treatment of biochar+Haoyigeng had a relatively good effect,increasing soil organic matter,available phosphorus and available potassium contents by 6.50%,45.01%and 37.39%,respectively,compared with the control.The three conditioner combinations performed well in reducing soil acidity and improving soil fertility.Among them,the combination of biochar+organic fertilizer+Tuwobao was the most effective:it increased the soil pH value by 0.72 units,raised the total exchangeable base cations by 90.00%,reduced the exchangeable aluminum content by 81.94%,enhanced the soil pH buffer capacity by 36.81%,and increased the contents of soil alkali-hydrolyzable nitrogen,available phosphorus and available potassium by 23.87%,38.96%and 50.14%,respectively.In conclusion,the combined application of biochar,organic fertilizer,and Tuwobao represents the optimal strategy for achieving deacidification and fertility improvement in acidified paddy soil,demonstrating significant potential for practical application and promotion.关键词
土壤酸化/组合调理剂/降酸/土壤肥力/田间试验Key words
soil acidification/combined conditioners/deacidification/soil fertility/field experiment分类
资源环境引用本文复制引用
王楠析,章志特,金伊,施加春..组合调理剂对酸化稻田土壤的降酸培肥潜力及机制[J].浙江大学学报（农业与生命科学版）,2026,52(1):85-98,14.基金项目
国家自然科学基金项目(42177007,42477002). （42177007,42477002）
