江西农业学报Issue(9)：31-35,5.
施用微生物菌剂对土壤关键酶活性和烤烟根系生长的影响
Effects of Applying Microbial Agents on Actvi ity of Soil Key Enzymes and Root Growth of Flue-cured Tobacco
摘要
Abstract
In order to improve soil microenvironment and optimize the suitable dosage of microbial agents, we carried out pot experiments with four treatments to study the effects of different treatments on the activities of soil key enzymes and the root system growth of flue-cured tobacco.The results indicated that: in comparison with the control ( CK) , the treatments T1, T2 and T3 im-proved the activities of soil urease, sucrase and catalase to different extent, especially the treatment T1 had the most obvious effect on the increase in soil sucrase activity, and the treatment T2 had the most obvious effect on the increase in the activities of soil ure-ase and catalase.As compared with CK, three treatments of applying microbial agents enhanced the root activity of flue-cured tobac-co, and the treatment T2 obtained the best effect.The dry weight of root, stem and leaf, and the root-shoot ratio of flue-cured to-bacco in the treatments ( especially T2 ) of applying microbial agents were higher than those of CK.Therefore, the treatments T1 and T2 could better improve the activities of soil key enzymes in flue-cured tobacco field, and the treatment T2 could better increase the root activity, the dry weight of root, stem and leaf, and the root-shoot ratio of flue-cured tobacco, which was followed by the treat-ment T3 .关键词
微生物菌剂/土壤酶活性/烤烟/根系活力/根冠比Key words
Microbial agent/Soil enzyme activity/Flue-cured tobacco/Root activity/Root-shoot ratio分类
农业科技引用本文复制引用
朱金峰,王小东,郭传滨,李友军,井雪峰,刘领,崔珍珍..施用微生物菌剂对土壤关键酶活性和烤烟根系生长的影响[J].江西农业学报,2015,(9):31-35,5.基金项目
河南省烟草公司科学研究与技术开发项目（ HYKJ2012M04，HYKJ201302）；上海烟草集团责任有限公司科技项目（ SZBCW2014－00830）；河南科技大学博士科研启动基金（4024－13480045）。 （）
