|Table of Contents|

Effect of Long-term Dry Land Turning Into Paddy Field on Transforming Nitrogen Microorganisms(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年18
Page:
175-178
Research Field:
Publishing date:

Info

Title:
Effect of Long-term Dry Land Turning Into Paddy Field on Transforming Nitrogen Microorganisms
Author(s):
DUN Yuanyuan1DU Chunmei1JIANG Zhongyuan2ZHANG Haijun1DONG Xiwen1
(1.Life Science College,Jiamusi University,Jiamusi,Heilongjiang 154007;2.Office of Teaching Affairs,Jiamusi University,Jiamusi,Heilongjiang 154007)
Keywords:
dry landpaddy fieldmicroorganismsnitrogen
PACS:
-
DOI:
10.11937/bfyy.201518047
Abstract:
Taking the black soil in Huachuan county,Heilongjiang Province as the research object,by analyzing and comparing the numbers of nitrobacteria,nitrosobacteria,aerobic nitrogen-fixed bacteria,ammonifying bacteria and denitrifying bacteria in the soil which changing from dry land to paddy in different years,to explore the influence of microorganisms of changing nitrogen element.The results showed that the numbers of nitrobacteria,nitrosobacteria,aerobic nitrogen-fixed bacteria,ammonifying bacteria increased,but the numbers of denitrifying bacteria decreased after turning dry land into paddy.With the increasing of paddy years,the numbers of nitrobacteria and nitrosobacteria increased at first then decreased.The numbers of aerobic nitrogen-fixed bacteria decreased at first then increased.The numbers of denitrifying bacteria decreased gradually.Among them,the numbers of nitrobacteria and nitrosobacteria which were paddy for ten years were the more abundant.However,the numbers of aerobic nitrogen-fixed bacteria were the least.

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Last Update: 2015-10-23