| Relationship between soil urease, catalase activities and soil nutrient in vegetable greenhouse |
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| DOI：10.7606/j.issn.1000-7601.2011.03.31 |
| Key Words: vegetable greenhouse enzyme activity soil nutrients correlation analysis path analysis |
| Author Name | Affiliation | | TANG Haibin | College of Resources and Erwirorument, Nortuwest A & F Uniwersity， Yangling, Shaanxi 712100，China
Key Laboratory of Agriculture Resources and Ecosystem Remediction of Loess Plateau, Ministry of Agriculture,
Yangling，Shaanxi 712100，China | | LAO Chaoying | College of Resources and Erwirorument, Nortuwest A & F Uniwersity， Yangling, Shaanxi 712100，China
Key Laboratory of Agriculture Resources and Ecosystem Remediction of Loess Plateau, Ministry of Agriculture,
Yangling，Shaanxi 712100，China | | LIU Lili | College of Forstry, Northwest A &. F University，Yangling, Shaanxi 712100，China | | SUN Changzhong | Experimental Center of Forestry in North China, Chinese Academy of Forestry， Beijing 102300， China | | XU Yongxia | College of Resources and Erwirorument, Nortuwest A & F Uniwersity， Yangling, Shaanxi 712100，China
Key Laboratory of Agriculture Resources and Ecosystem Remediction of Loess Plateau, Ministry of Agriculture,
Yangling，Shaanxi 712100，China | | BIAN Dandan | College of Forstry, Northwest A &. F University，Yangling, Shaanxi 712100，China |
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| Abstract: |
| In Shouguang of Shandong Province， the relationships between soil urease activity, catalase activity and
the content of soil nutrients were studied by using both correlation analysis and path analysis. The results showed that the correlation between soil urease activity ，catalase activity and the content of organic matter, total N，available N, total P，available P and available K reached sigmificant or extremely significant positive level，the soil urease and catalase activity could be used as a comprehensive index of soil fertility. Total N，available N and available P had direct effect on soil urease activity， and they were the main factors affecting urease activity. Organic matter, total P and available K had effect on urease activity through indirect effects of the total N and available N. The effect of soil total N on soil catalase activity was mainly presented in direct responses，but the other soil nutrients mainly affected soil catalase activity by indi-rect action. |
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