黄瓜与西芹间作对土壤酶活性的影响

发布时间：2018-05-31 16:53

本文选题：黄瓜 + 西芹　；参考：《内蒙古农业大学》2017年硕士论文

【摘要】：本试验用黄瓜单作、西芹单作为对照,黄瓜与西芹间作为处理,在黄瓜西芹分别育苗,定植共生60天后开始取样,每隔十天取一次,连续取四次,对三种种植模式下土壤中蔗糖酶、淀粉酶、蛋白酶、脲酶、过氧化氢酶、多酚氧化酶以及过氧化物酶的活性变化进行研究,结果表明:1.脲酶活性测定中,第一次取样时期,黄瓜与西芹间作的脲酶活性高黄瓜单作13.39%,但差异不显著;第二、三次取样时期,黄瓜与西芹间作的土壤中脲酶活性分别比黄瓜单作低18.31%、26.13%,差异显著(P0.05):第四次取样时期,黄瓜与西芹间作的土壤中脲酶活性比黄瓜单作低29.46%,差异极显著(P0.01)。2.多酚氧化酶的活性测定中,第一、二次取样时期,黄瓜与西芹间作的土壤中多酚氧化酶活性比黄瓜单作低86.42%、66.04%,差异极显著低于(P0.01);第三次取样时期,黄瓜与西芹间作的土壤中多酚氧化酶活性比黄瓜单作低34.21%,差异显著(P0.05);第四次取样时期,黄瓜与西芹间作的土壤中多酚氧化酶活性比黄瓜单作高3.35%,但差异不显著。3.过氧化物酶的活性测定中,第一次取样时期,黄瓜与西芹间作土壤中过氧化物酶的活性比黄瓜单作低36.00%,差异不显著;而第二、三、四次取样时期,黄瓜与西芹间作土壤中过氧化物酶的活性分别比黄瓜单作低86.27%、62.11%、60.54%,差异极显著(P0.01)。4.三种种植模式下,根系土壤中蔗糖酶活性、淀粉酶活性、蛋白酶活性、过氧化氢酶活性处理与对照差异都不显著。
[Abstract]:The activities of sucrase, amylase, protease, urease, catalase, polyphenol oxidase and peroxidase in soil under three planting patterns were studied. In the first sampling period, the urease activity of cucumber and celery was higher than that of cucumber monoculture, but the difference was not significant. The soil urease activity of cucumber and celery intercropping was 18.31and 26.13 lower than that of cucumber monoculture, and the difference was significant (P0.05N). In the fourth sampling period, the urease activity of cucumber and celery intercropping was 29.46% lower than that of cucumber monoculture, and the difference was extremely significant. In the first and second sampling period, the polyphenol oxidase activity in the soil of cucumber and celery was 86.42% lower than that in cucumber monoculture, and the difference was significantly lower than that of P0.01C, and in the third sampling period, the activity of polyphenol oxidase was significantly lower than that of Cucumber monoculture. The activity of polyphenol oxidase in the soil of cucumber and celery intercropping was 34.21 1 lower than that of cucumber monoculture, and the difference was significant (P0.05). In the fourth sampling period, the activity of polyphenol oxidase in soil of cucumber and celery intercropping was 3.35% higher than that of cucumber monoculture, but the difference was not significant. The activity of peroxidase in cucumber and celery intercropping soil was 86.27% lower than that in cucumber monoculture, 62.11% and 60.54%, respectively. There was no significant difference in sucrase activity, amylase activity, protease activity and catalase activity between the three cropping patterns and the control.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S642.2;S636.3

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