复合菌肥对二氯喹啉酸危害的烟株根际土壤酶活性的影响  

Effects of Compound Microbial Fertilizer on Soil Enzyme Activities in Quinclorac-contamined Rhizosphere Soil of Tobacco

作　　者：邢国珍[1] 李海霞[1] 孟南[2] 郭盘盘 贾然然 吕春芳 刘华山[1] XING Guozhen;LI Haixia;MENG Nan;GUO Panpan;JIA Ranran;LV Chunfang;LIU Huashan(Henan Agricultural University College of Life Science/National Demonstration Center for Experimental Biology Education,Zhengzhou450002,China;Henan Agricultural University College of Landscape Architecture and Art,Zhengzhou450002,China)

机构地区：[1]河南农业大学生命科学学院/生物学国家级实验教学示范中心,郑州450002 [2]河南农业大学风景园林与艺术学院,郑州450002

出　　处：《现代农药》2022年第4期48-52,共5页MODERN AGROCHEMICALS

摘　　要：为探究不同复合菌肥对二氯喹啉酸危害的土壤中根际酶的修复作用,以‘K326’烟草为材料,采用盆栽试验,测定并比较了施用不同复合菌肥时土壤中根际蔗糖酶、脲酶、纤维素酶、蛋白酶和过氧化氢酶的活性。结果表明,有效含量0.085 mg/kg二氯喹啉酸的受害土壤(T1)中蔗糖酶、脲酶、纤维素酶、蛋白酶和过氧化氢酶活性与对照土壤相比,在处理20 d后,活性分别降低35.45%、64.35%、54.88%、54.88%和60.12%;3种复合菌肥修复处理比上述受害土壤处理在根际土壤蔗糖酶活性方面增加了21.15%、11.93%和31.68%,在脲酶活性方面提高了43.21%、62.25%和136.49%,在纤维素酶活性方面分别升高24.24%、46.64%和87.51%,在蛋白酶活性方面增加了34.42%、51.76%和97.71%,在过氧化氢酶活性方面提升了81.82%、145.45%和181.82%;复合菌肥处理对土壤除蔗糖酶外的其他酶活性的修复效果整体表现为复合菌肥3>复合菌肥2>复合菌肥1。以上结果表明复合菌肥能提高对受二氯喹啉酸危害土壤的酶活性,改善土壤生态环境,对二氯喹啉酸污染的土壤具有缓解修复作用。To explore the effect of compound bacterial fertilizer on the rhizosphere soil enzyme activity of tobacco plants damaged by quinclorac,the pot experiment was used to study the effect of different compound bacterial fertilizer on the activities of invertase,urease,cellulase,proteinase and catalase in the quinclorac-contamined rhizosphere soil of'K326'tobacco.The results showed that after the treatment of 20 d,the activities of invertase,urease,cellulase,protease and catalase of quinclorac-contamined soil(T1)compared with the normal soil decreased by 35.45%,64.35%,54.88%,54.88%and 60.12%,respectively.Compared with T1,the invertase activity of quinclorac-contamined soil treated by compound bacterial fertilizer 1,2 and 3 increased by 21.15%,11.93%and 31.68%,soil urease activity increased by 43.21%,62.25%and 136.49%,cellulase activity increased by 24.24%,46.64%and 87.51%,protease activity was increased by 34.42%,51.76%and 97.71%,catalase activity was increased by 81.82%,145.45%and 181.82%,respectively.The overall remediation effects of different compound bacterial fertilizers except invertase on soil enzyme activity in order from good to weak were as follows:compound bacterial fertilizer 3,2,1.It indicated that the compound bacterial fertilizer played an important role in increasing the enzyme activity of soil damaged by quinolorac,improved the soil ecological environment and had obvious alleviation and remediation effect on quinolorac-contaminated soil.

关 键 词：烟草 二氯喹啉酸 危害 复合菌肥 土壤酶活性 

分 类 号：X592[环境科学与工程—环境工程]