Change of Enzyme Activity of Different Cropping Years in Greenhouse Soil

摘要：

The paper studies change of enzyme activity with increasing cropping years in greenhouse soil. We furthermore took mancozeb, which was a fungicide commonly used in greenhouse soil in North China, as an example to study the change difference of greenhouse soil enzyme activity with different cropping years after addition of external agricultural chemical material. We found that with increasing cropping years of greenhouse soil, catalase activity decreased gradually; Sucrase activity presented the trend of up-down-up. Different cropping years of greenhouse soils showed different response to the external impact of mancozeb. Difference of enzyme activity in cropping years of greenhouse soil were insignificant after addition of 10 mg·kg-1 and SO mg·kg-1 mancozeb. In this case, effect of mancozeb on the soil enzyme activity was insignificant However, enzyme activities of catalase and sucrase in 10 years and 20 years greenhouse soils were all affected significantly after addition of 100 mg-kg1 mancozeb. It suggested that resistance ability of greenhouse soil to the external impact became weaker with increasing cropping years, which should be paid our attention.

关键词： greenhouse soil enzyme activities impact continuous cropping year

作者: Yan Lei Bai Yu Hou Li-yuan Li Bi-ying Zhou Xiu-yan Qin Zhi-wei

作者单位: College of Resources and Environment Northeast Agricultural University Harbin, China College of Horticulture Northeast Agricultural University Harbin, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 362-365

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）