摘要
以天津地区露地土壤作对照,研究了栽培1,2,3,6,12年设施蔬菜土壤有关生物学指标的变化。结果表明,设施土壤脲酶、过氧化氢酶、转化酶活性高于露地,过氧化物酶相反;随着连作年限延长,土壤脲酶活性逐渐增强,而过氧化氢酶、过氧化物酶、转化酶活性开始增强之后减弱。土壤酶活性都由表层向底层逐渐减弱。土壤pH随着栽培年限增加呈逐渐降低趋势。
In order to provide the scientific basis of preventing soils from degradation and promoting agriculture sustainable development, soil enzyme activities and pH were studied in the greenhouse vegetable soils under differ- ent planting years（ 1,2,3,6 and 12 year） in Tianjin with the open field soil as control. The result indicated that soilurease ,catalase and intertase activity were higher in greenhouse vegetable soils than that in open field soil, peroxi- dase activities were opposite. Soil urease increased gradually with the cultivation years,but soil catalase,peroxidase and intertase activity increased beginning,then decreased. Soil enzyme activities decreased with soil depths. Soil pH declined with the planting years.
出处
《华北农学报》
CSCD
北大核心
2012年第1期215-217,共3页
Acta Agriculturae Boreali-Sinica
基金
国家科技支撑项目
2008BADA4B05
天津市农业科学院院长基金项目(08022)
关键词
设施土壤
不同年限
酶活性
PH值
Greenhouse soil
Different planting years
Soil enzymatic activity
pH
