一种专用土壤调理剂改良滨海盐渍土效果研究
Improvement Effect for Coastal Saline-Alkali Soil with a Patented Environmentally Friendly Soil Amendment
邵天韵 1燕潇 1彭昊 2贾秉志 3李文平 2傅鹏宵 2徐聆溪 3马占红 3任莹飞 1刘安鸿 1隆小华4
作者信息
- 1. 南京农业大学资源与环境科学学院,江苏 南京 210095
- 2. 江苏沿海生态科技发展有限公司,江苏 南京 211500
- 3. 江苏方洋集团有限公司,江苏 连云港 222065
- 4. 内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031
- 折叠
摘要
[目的]滨海盐渍土存在的土壤盐分高、结构差、钠含量高、返盐频繁等问题,为促进沿海地区滩涂资源的高效开发和利用,探究一种专用的土壤调理剂对于滨海盐渍土的改良效果.[方法]以专用土壤调理剂"盐怕"(ZL 201810961893.4)为试验材料,以滨海地区盐渍土为研究对象,通过室内模拟实验的方法,测定不同用量(0、3000、6000 kg hm-2)的"盐怕"处理下 0～20 cm土层土壤基本理化性质及土壤酶活性,从而分析并评估该环境友好型的多功能土壤调理剂对滨海盐渍土的改良效果.[结果]土壤调理剂的施用能够降低土壤含盐量及pH,增加土壤碱解氮和速效钾含量,降低土壤Na+离子含量,同时提升土壤中Ca2+、Mg2+和K+含量,并使土壤蔗糖酶和脲酶活性提升,但超过某一用量范围后调理剂用量继续增加其效果提升不再明显.[结论]该专用的土壤调理剂可以有效且高效地改良滨海盐渍土,推荐调理剂施用量为3000 kg hm-2.
Abstract
[Objective]Coastal saline soil has such problems as high salinity,poor structure,high sodium content and frequent water-salt interaction.In order to promote the development and utilization of saline-alkali land resources in coastal areas,this paper mainly studies the improvement effect of a patented soil conditioner on coastal saline soil.[Method]The patented soil conditioner"Salt Fear"(ZL 201810961893.4)was used as the experimental material and coastal saline soil was used as the research object.Laboratory simulation experiments were carried out to study the physical and chemical properties of soil and soil enzyme activities in 0-20 cm soil layer treated with different amounts(0,3000,6000 kg hm-2)of"Salt Fear",so as to analyze and evaluate the improvement effect of this environment-friendly multifunctional soil conditioner on coastal saline land.[Result]The results showed that the application of"Salt Fear"could reduce soil salt content,pH value and toxic Na+ion content,and increase the content of alkali hydrolyzed nitrogen and other available nutrients,as well as the contents of Ca2+,Mg2+and K+.The activities of soil sucrase and soil urease were also improved.And the improvement effect did not significantly improve with the increase of the dosage of"Salt Fear".[Conclusion]These results indicated that this patented soil amendment for saline soil can effectively and efficiently improve coastal saline soil,and by considering various factors,it is recommended to apply 3000 kg/hm2 of this amendment.
关键词
滨海盐渍土/土壤改良/土壤含盐量/土壤离子/土壤酶活性Key words
Coastal saline-alkali land/Soil improvement/Soil salinity/Soil ions/Soil enzyme activity引用本文复制引用
基金项目
国家自然科学基金(32301433)
江苏省自然科学基金(BK20230987)
江苏省卓越博士后计划(2023ZB509)
江苏省沿海开发集团有限公司2022年科技揭榜挂帅研发项目(2022YHTDJB01)
徐圩新区土壤改良及绿化植物优选研究实施项目(001-QT900-ZX017)
出版年
2024
NETL
NSTL
万方数据