施用秸秆对烤烟土壤酶活性及烤烟氮和钾含量的影响  

Effects of Straw Application on Soil Enzyme Activities and Nitrogen and Potassium Contents in Flue-cured Tobacco

作　　者：翟优雅[1] 阮志[1] 张立新[1] 高梅[1] 赵永桂[1] 韦成才 马英明 陈伟 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]陕西省烟草研究所,西安710000 [3]贵州省烟草科学研究院,贵阳550081

出　　处：《中国烟草科学》2014年第5期45-49,共5页Chinese Tobacco Science

基　　金：陕西省特色烟叶开发重大专项(ZDZX2011-001);中间香型特色优质烟叶科学保障大田生长时间配套技术研究(TS-02-20110015)

摘　　要：为了充分利用农作物废弃物,建立合理的资源循环系统,改善植烟土壤环境,以秦烟96为材料,采用盆栽试验,探索了秸秆施用量对烤烟土壤酶活性、烟叶和根系氮、钾含量的影响。结果表明,外施秸秆显著提高了土壤酶活性和烤烟烟叶和根系氮、钾含量。在适量范围内,随着秸秆施用量的增加,土壤酶活性和烤烟烟叶和根系氮、钾含量均呈递增趋势。Pot experiments have been carried out to study the effect of external straw application on soil enzyme activities and the nitrogen and potassium contents in tobacco leaves and roots for tobacco variety Qinyan 96. The purpose of this study was to efficiently take advantage of crop waste in order to establish a reasonable resource recycling system and improve the soil environment of tobacco growth. The result shows that external straw addition significantly increased the soil enzyme activity and the nitrogen and potassium contents in tobacco leaves and roots. In a certain range, as the straw usage increased, the soil enzyme activity and the nitrogen and potassium contents in tobacco roots also increased.

关 键 词：烤烟 秸秆 土壤酶 氮含量 钾含量 

分 类 号：S572[农业科学—烟草工业]