连续施用不同种类生物质炭对植烟土壤养分的影响  

Effects of Continuous Application of Different Biochars on Tobacco-planting Soil Nutrients

作　　者：肖和友 朱伟 郑生猛 刘聪聪 何祥春 刘蓉 张赐喜 刘娜梅 刘旭 唐涛 陈立军 XIAO Heyou;ZHU Wei;ZHENG Shengmeng;LIU Congcong;HE Xiangchun;LIU Rong;ZHANG Cixi;LIU Namei;LIU Xu;TANG Tao;CHEN Lijun(Shaoyang Tobacco Company of Hunan Province,Shaoyang,Hunan 422000,China;Laboratory of Eco-Industrial Green Technology,College of Ecology and Resources Engineering,Wuyi University,Wuyishan,Fujian 354300,China)

机构地区：[1]湖南省烟草公司邵阳市公司,湖南邵阳422000 [2]福建省生态产业绿色技术重点实验室,武夷学院生态与资源工程学院,福建武夷山354300

出　　处：《土壤》2024年第2期326-332,共7页Soils

基　　金：邵阳市烟草公司科技计划重点项目(2015—2018);邵阳市烟草专卖局(公司)科技项目(2015);武夷学院引进人才启动项目(YJ202117)资助。

摘　　要：为了改良植烟土壤质量,探讨连续施用不同种类生物质炭对植烟土壤养分含量的影响,通过3 a大田定位试验研究了连续施用不同生物质炭(CK:不添加生物质炭;T1:添加烟秆炭;T2:废弃烟叶炭;T3:玉米秸秆炭)下植烟土壤中的养分含量。结果表明:(1)连续施用不同种类生物质炭能够显著提高土壤有机质、全氮、有效磷和速效钾含量,但对全磷、全钾以及碱解氮的作用并不显著。(2)在2018年采收期,3种生物质炭处理分别提高有机质10.26%、9.12%和6.96%,全氮10.36%、18.29%和9.03%,有效磷6.96%、18.57%和9.82%,速效钾16.53%、33.84%和13.05%。(3)随着试验年限的延长,添加烟秆炭对土壤有机质提升效果最好,其次是废弃烟叶炭,玉米秸秆炭最次;废弃烟叶炭提升土壤全氮、有效磷和速效钾效果最佳。综合分析来看,连续施用生物质炭能提高土壤养分含量,改善土壤肥力,以废弃烟叶炭效果最好,可大面积推广。In order to improve the quality of tobacco-planting soil,the effects of continuous application of different kinds of biochars on the tobacco-planting soil nutrient contents were studied by a 3 a field experiment conducted in Fengtian Town,Xinning County,Shaoyang City,Hunan Province during 2016—2018.The treatments included CK(no biochar added),T1(tobacco stem-derived biochar),T2(wasted tobacco leaf-derived biochar),T3(maize straw-derived biochar).The results showed that continuous application of different biochars significantly increased the contents of soil organic matter(SOM),total nitrogen(TN),available phosphorus(AP)and available potassium(AK),but had no significant influence on the contents of total phosphorus(TP),total potassium(TK),and alkali-hydrolyzed nitrogen(AN).In the harvest period of 2018,three biochar treatments increased SOM by 10.26%,9.12%and 6.96%,respectively;increased TN by 10.36%,18.29%and 9.03%,respectively;increased AP by 6.96%,18.57%and 9.82%,respectively;and increased AK 16.53%,33.84%and 13.05%,respectively.With the extension of the test period,the addition of tobacco stem biochar increased SOM most,followed by wasted tobacco leaf biochar and maize straw biochar.However,the wasted tobacco leaf biochar increased TN,AP and AK most.In conclusion,continuous application of biochar can improve soil nutrient contents and soil fertility,and the tobacco leaf biochar has the best potential and prospect of application.

关 键 词：连续施用 生物质炭 植烟土壤 养分 

分 类 号：S156.6[农业科学—土壤学]