|Table of Contents|

Variation of Enzyme Activity and Microbial Communities at the Rhizosphere Soils of Intercropping Pastures in the Pear Orchard(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年13期
Page:
165-171
Research Field:
Publishing date:

Info

Title:
Variation of Enzyme Activity and Microbial Communities at the Rhizosphere Soils of Intercropping Pastures in the Pear Orchard
Author(s):
ZHANG Rui1ZHI Jian-fei2LIU Quan-lan1
1.College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao,Shandong 266042;
2.Institute of Resource and Environment,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang,Hebei 050051
Keywords:
-
PACS:
S 661.2
DOI:
-
Abstract:
To evaluate effects of intercropping pastures on the soil quality in the pear orchard distributed at Mayu Town of Jinzhou City,Hebei Province,China,soil pH,soil microbes,and soil enzyme activities were measured at two depth levels (0~20 cm and 21~40 cm) of the rhizosphere soils of three pastures (Orychophragmus violaceus(L.)Schulz),Poa annua L.,and Lolium perenne L.) intercropping plots.Subsequently,the correlation between above factors was analyzed.Five main results were obtained.First,pH values,fungi numbers,actinomycetes numbers,and urease activity differed at two depth levels.Second,pH values,actinomycetes numbers,and peroxidase activity (0~20 cm) were highly improved by the intercropping O.violaceus.By contrast,urease activity was decreased in this intercropping plot.Third,pH value was decreased in the intercropping plot of P.annua,and fungi numbers (0~20 cm) and peroxidase activity were highly improved.Fourth,peroxidase activity was decreased and urease activity was highly improved in the intercropping Lolium perenne?L.plot.Finally,there had significant positive correlation between pH values and soil depths,between peroxidase activities and actinomycetes numbers,between peroxidase activities and pH values,and between actinomycetes numbers and pH values.In addition,there had significant negative correlation between actinomycetes numbers and soil depths,between urease activities and soil depths,and between urease activities and pH values.Also,there had significant correlation between actinomycetes numbers and intercropping pastures.Therefore,the soil quality would be greatly improved when O.violaceus(L.)Schulz) and P.annua L.were simultaneously planted between pears.

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Last Update: 2014-08-03