两种土壤改良剂对酸化茶园土壤的修复效果  

Remediation of acidified tea plantation soil using two soil amendments

作　　者：刘芷君 王格格 王钰超 林舜贤 李家玉[1,2] 何海斌 LIU Zhijun;WANG Gege;WANG Yuchao;LIN Shunxian;LI Jiayu;HE Haibin(College of Life Sciences,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring/Institute of Agroecology,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]福建农林大学生命科学学院,福建福州350002 [2]福建省农业生态过程与安全监控重点实验室/福建农林大学农业生态研究所,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2023年第2期240-246,共7页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省植物营养与肥料重点实验室开放基金项目(2022PNFKL22);福建省自然科学基金项目(2020J01369,2020J01408);农业部“948”项目(2014-Z36)。

摘　　要：利用两种土壤改良剂(生物炭和玛塔),通过室内模拟试验评估添加量和修复效果,选择玛塔进行室外盆栽试验,研究其对酸化茶园土壤的改良效果.结果表明,室内培养60 d后,添加土壤改良剂后酸化土壤的pH均显著升高,升高幅度随添加量增加而升高.添加生物炭处理的土壤pH上升0.17~0.38,添加玛塔处理的土壤pH上升0.68~2.20.生物炭显著降低了土壤的交换性总酸、交换性铝含量,并显著提升了土壤有机质含量;玛塔显著降低了土壤的交换性总酸、交换性铝、交换性H+含量.室外盆栽试验结果表明,添加玛塔提高了土壤pH,且增加了茶苗鲜质量、干质量、叶绿素含量和叶面氮含量.总之,玛塔可以快速提升土壤pH且维持较长时间,可作为茶园酸化土壤修复材料.Remediation effects of soil amendments, biochar and mata applied at various rates, were evaluated through laboratory simulation, and then mata was selected for outdoor pot culture to study its remediation effect on acidified tea plantation soil. The results showed that the pH of acidified soil increased significantly with the application rates of the amendments after 60 days laboratory simulation, whose pH were up by 0.17~0.38 and 0.68~2.20 in biochar and mata treatment, respectively. Biochar significantly reduced the exchangeable total acid and exchangeable aluminum in soil, and significantly lifted the soil organic matter content. And mata significantly reduced the exchangeable total acid, exchangeable aluminum and exchangeable H+. Outdoor pot culture showed that mata contributed to higher soil pH, fresh and dry weights of tea seedling, chlorophyll content and leaf nitrogen content. In conclusion, mata can rapidly increase and maintain soil pH for a period, which can be used to remediate acidified tea plantation soil.

关 键 词：茶园 酸化土壤 生物炭 玛塔 土壤PH 

分 类 号：S156[农业科学—土壤学]