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Effect of Different Alfalfa on Soil Ourease Enzyme and Soil Nitrogen(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年18期
Page:
198-199
Research Field:
Publishing date:

Info

Title:
Effect of Different Alfalfa on Soil Ourease Enzyme and Soil Nitrogen
Author(s):
MENG Qing-ying1; ZHANG Chun-feng1; FENG Peng1; ZHU Bao-guo1; WANG Nan-nan1; GAO Xue-dong1; ZHANG Hai-ling2; LIU Zi-tong3
1.Jiamusi Branch,Heilongjiang Academy of Agricultural Sciences，Jiamusi，Heilongjiang 154007;
2.Institute of Pratacultural Sciences，Heilongjiang Academy of Agricultural Sciences，Harbin，Heilongjiang 150086;
3.Mudanjiang Branch，Heilongjiang Academy of Agricultural Sciences,Mudanjiang，Heilongjiang 157000
Keywords:
alfalfa; soil; ourease activity; nitrogen
PACS:
S 551+.7
DOI:
-
Abstract:
Taking 13 kinds of alfalfa from domestic and foreign as materials，the effect of planting alfalfa on soil ourease activity and nitrogen were studied.The results showed that foreign alfalfa variety had higher ourease enzyme of rhizosphere soil than domestic alfalfa varieties.The average value of foreign alfalfa varieties ourease enzyme of rhizosphere soil was 49.52 mg/100g，and the average value of domestic alfalfa variety ourease enzyme of rhizosphere soil was 45.36 mg/100g.Foreign alfalfa varieties had higher soil available nitrogen than foreign alfalfa varieties，and the average value was 188.07 mg/kg.The average value of domestic alfalfa variety was 174.30 mg/kg.The results of correlation analysis showed that there were positive interrelationships between ourease enzyme of rhizosphere soil and soil available nitrogen (P＜0.01)，which could be used as the biological index to evaluate the soil fertility.

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Last Update: 2014-11-27