[1]XIE Yuan-yuan,GU Jie,GAO Hua,et al.Dynamic Changes of Soil Enzyme Activities in Microorganism Inoculants, Enzymes and Chemical Fertilizers in Different Proportions after Straw Returning Soil[J].Research of Soil and Water Conservation,2010,17(02):233-238.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 02
Page number:
233-238
Column:
Public date:
2010-04-20
- Title:
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Dynamic Changes of Soil Enzyme Activities in Microorganism Inoculants, Enzymes and Chemical Fertilizers in Different Proportions after Straw Returning Soil
- Author(s):
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XIE Yuan-yuan1, GU Jie2, GAO Hua2, ZHANG She-qi1, XIA Xue2, LIU Lei1, GUO Xing-liang1
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1. College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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- Keywords:
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soil enzyme activity; soil nutrient; microorganism inoculants; growth of corn
- CLC:
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S154.2;S141.4
- DOI:
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- Abstract:
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The dynamic changes of soil enzyme activities, the relationship of soil enzyme activities with the contents of soil nutrients were investigated based on the experiment of microorganism inoculants, enzymes and chemical fertilizers in different proportions after straw returning soil in Hengqu county, Shaanxi province, China. The results showed that invertase and alkaline phosphatase had peaks of concentrations at filling stage and it was 58.30 mg, 3.85 mg respectively. It was 4.7 times and 1.5 times before sowing of CK respectively. Urease and polyphenol oxidase peaked at mature stage and it was 4.85 mg, 1.46 mg respectively. It was 3.2 times and 8.1 times before sowing of CK respectively. Microorganism inoculants, enzymes and chemical fertilizers in different proportions in straw returning soil could significantly increase the soil invertase, urease, alkaline phosphatase and polyphenol oxidase activities. The application of SFN+E+D fertilizers was more effective than others to increase soil enzyme activities. The significantly positive correlations were found between the activities of invertase, urease and alkaline phosphatase except polyphenol oxidase. Urease and alkaline phosphatase activities were correlated with soil nutrient contents except availble K while polyphenol oxidase varied un-remarkably. Invertase activities were reversely correlated with available K.