湖北农业科学 ›› 2024, Vol. 63 ›› Issue (2): 31-35.doi: 10.14088/j.cnki.issn0439-8114.2024.02.006

• 生产环境与资源 • 上一篇    下一篇

不同改良剂对滨海盐碱地的改良效果

王立艳1, 潘洁1, 赵杰1, 李梦琦1, 张慧1, 王春水2, 董昱辰3, 肖辉1   

  1. 1.天津市农业科学院农业资源与环境研究所,天津 300384;
    2.天津市中芬乳品研究培训中心,天津 300270;
    3.天津亚派绿肥生物科技发展有限公司,天津 300384
  • 收稿日期:2023-02-15 出版日期:2024-02-25 发布日期:2024-03-14
  • 通讯作者: 肖辉(1981-),男,山东泰安人,副研究员,博士,主要从事盐碱地改良研究,(电子信箱)xiaohui-81@163.com。
  • 作者简介:王立艳(1981-),女,黑龙江海伦人,助理研究员,硕士,主要从事盐碱地改良及植物营养研究,(电话)13622152362(电子信箱)wangly2021@sina.com。
  • 基金资助:
    国家重点研发计划项目(2021YFD1900905)

Improving effect of different amendments on coastal saline-alkali soil

WANG Li-yan1, PAN Jie1, ZHAO Jie1, LI Meng-qi1, ZHANG Hui1, WANG Chun-shui2, DONG Yu-chen3, XIAO Hui1   

  1. 1. Institute of Agricultural Resources and Environment, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China;
    2. Tianjin Sino-Finnish Dairy Foods Research & Training Center, Tianjin 300270, China;;
    3. Tianjin Yapai Green Manure Biotechnology Development Co., Ltd., Tianjin 300384, China
  • Received:2023-02-15 Online:2024-02-25 Published:2024-03-14

摘要: 为了探讨不同改良剂对滨海盐碱地的改良效果,采用盆栽试验研究了硫酸钙、硫酸铝、硫酸铁、硫酸亚铁、硫磺对土壤全盐、pH及离子组成的影响。结果表明,改良剂的种类不同,下渗水离子含量差异较大;第一次淋洗,硫酸钙、硫酸铝、硫酸铁处理下渗水中Na+和Cl-含量分别比CK高54.78%和58.25%、35.44%和39.22%、32.65%和34.82%,表明添加这3种改良剂对土壤的降盐效果较好,其中硫酸钙处理效果最好;第二次淋洗,硫酸铁、硫酸钙和硫酸铝处理的Na+含量比CK高75.14%~347.76%。综合2次淋洗效果,表明硫酸钙处理对土壤中的Na+淋洗效果更明显。与CK相比,各改良剂土壤pH均有不同程度的降低,pH降低2.23%~3.84%;不同改良剂对土壤离子的影响各不相同,添加改良剂各处理土壤中的Ca2+和Mg2+含量均高于CK。综合考虑到不同改良剂对土壤pH、Na+和Cl-含量的影响,建议用硫酸铁和硫酸钙组合对滨海盐碱地进行改良。

关键词: 土壤, 滨海盐碱地, 改良剂, 可溶性盐分, 盐分离子

Abstract: In order to study the improvement effect of different amendments on coastal soil, a pot experiment was conducted to study the effects of calcium sulfate, aluminium sulfate, ferric sulfate, ferrous sulfate and sulfur on soil total salt, pH and ion composition. The results showed that with the different amendments applied, the content of ions in the infiltration water varied greatly. In the first leaching, the contents of Na+ and Cl- in the infiltration water treated with calcium sulfate, aluminum sulfate and ferric sulfate were 54.78% and 58.25%, 35.44% and 39.22%, 32.65% and 34.82% higher than those of CK, respectively, indicating that the addition of these three amendments had a better effect on soil salinity reduction, and calcium sulfate treatment had the best effect. In the second leaching, the Na+ content of ferric sulfate, calcium sulfate and aluminum sulfate treatment was 75.14%~347.76% higher than that of CK. Combined with two times of leaching, the results showed that calcium sulfate treatment had a more significant effect on the leaching of Na+ in soil. Compared with CK, the soil pH of each amendment treatment decreased to varying degrees, and the pH decreased by 2.23%~3.84%. Different amendments had different effects on soil ions. The contents of Ca2+ and Mg2+ in soil treated with amendments were higher than those of CK. Considering the effects of different amendments on soil pH, Na+ and Cl-, it was suggested that ferric sulfate and calcium sulfate should be combined to improve coastal saline-alkali land.

Key words: soil, coastal saline-alkali soil, amendment, soluble salt, salt ions

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