中药药渣堆肥应用于苏打盐碱土改良的可行性研究  

Feasibility of Using Traditional Chinese Medicine Residue Compost for Soda Saline-alkali Soil Improvement

作　　者：赵程鹏 王继红[1] ZHAO Chengpeng;WANG Jihong(College of Resources and Environment,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《吉林农业大学学报》2024年第5期869-877,共9页Journal of Jilin Agricultural University

基　　金：吉林省科技发展计划项目(20200402002NC)。

摘　　要：以吉林省松原市苏打盐碱土作为供试土壤,将2种常用的清热解毒类中药药渣堆肥施入苏打盐碱土中,探究将清热解毒类中药药渣堆肥应用于苏打盐碱土改良的可行性。结果表明:在实验室条件下,当堆肥施用量达到3%时,土壤pH降至8.55,电导率降为538μS/cm,ESP降至32.59%,全盐含量下降率达12.50%,速效N、P、K含量分别提升了91.90%,44.29%和55.22%,有机质含量大幅增加,并能有效提高苏打盐碱土透水性能,促进不同粒级团聚体之间的凝聚和转化,提高>0.25 mm粒级的团聚体含量,提高土壤团聚体水稳性。施用清热解毒类中药药渣堆肥产物可以起到改良苏打盐碱土理化性状的作用。Using soda saline-alkali soil in Songyuan City,Jilin province,as the test soil,two commonly used traditional Chinese medicine residue compost products for heat clearing and detoxifying were applied to soda saline-alkali soil to explore the feasibility of applying the residue compost to improve soda saline-alkali soil.The results showed that under laboratory conditions,when the application rate of compost reached 3%,soil pH decreased to 8.55,conductivity decreased to 538μS/cm,ESP decreased to 32.59%,total salt content decreased by 12.50%,and contents of available N,P,and K increased by 91.90%,44.29%,and 55.22%,respectively.Content of organic matter increased significantly,and it could effectively improve permeability of soda saline-alkali soil,promote aggregation and transformation between different particle sizes of aggregates,increase content of aggregates with particle sizes>0.25 mm,and improve water stability of soil aggregates.The application of heat clearing and detoxifying traditional Chinese medicine residue compost products can improve the physicochemical properties of soda saline-alkali soil.

关 键 词：苏打盐碱土 中药药渣 土壤理化性状 

分 类 号：S156.4[农业科学—土壤学]