摘要
进行了长期定位试验地中土壤有机质和酶活性的测定 ,结果表明 :不同培肥方式对土壤酶活性影响明显 ,特别是水解酶类中的脲酶反映最显著 ,过氧化氢酶则较差 ,揭示出土壤脲酶活性可作为土壤肥力的重要指标 ;作物对土壤水解酶活性具有明显的增强作用 ;秸秆和化肥处理可提高土壤的总体酶活性 ,其中尤以厩肥的增幅为最大 ;随耕种年限的延长 ,除无肥处理外 ,其余培肥方式的酶活性持续增加 ;对土壤酶活性进行主成分分析 。
WT5”BZ]The soil enzyme activities and organic matter content were assayed in long term fertilizing soil samples, the results showed as follows:Soil enzyme activity remarkably varied with the fertilizers, especially soil urease. The peroxidase was less and soil urease activity could be as an index of fertility; Plant could enhance hydrolase activity; the maize and chemical fertilizer might improve total enzymatic activity level. The enzyme activities were increased except non fertilizing treatment The main factors with the most influence were urease and uratease activities by The Principal Component Analysis of soil enzymes [WT5”HZ]
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2001年第3期265-268,共4页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家教委博士点基金资助项目!(90 0 70 3)
关键词
土壤
培肥模式
土壤酶活性
尿酸酶
WT5”BZ]soil
soil enzyme
fertilizing cultivation
The Principal Component Analysis
