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	Soil microbial activity measured by microcalorimetry in response to long-term fertilization regimes and available phosphorous on heat evolution
	Zheng, Shixue1; Hu, Junli2; Chen, Ke3,4; Yao, Jun3,4; Yu, Ziniu1; Lin, Xiangui2
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2009-10-01
卷号	41期号:10页码:2094-2099
关键词	Soil microbial activity Microcalorimetry Long-term fertilization Available phosphorous Heat dissipation Metabolic efficiency
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2009.07.019
通讯作者	Yu, Ziniu(yz41@mail.hzau.edu.cn)
英文摘要	Microcalorimetric technique was used to investigate the effects of balanced versus nutrient-deficiency fertilization on soil microbial activity in a long-term (19-year) fertilizer experiment. The number of microorganisms in soils was measured by viable cell count, and the power-time curves were recorded for soil samples supplemented with glucose and ammonium sulphate, also with or without sodium dihydrogen phosphate for P-deficiency fertilization. Both the bacterial and the fungal populations were significantly higher (P < 0.05) under balanced fertilization than under nutrient-deficiency fertilization. The microbial activity presented by heat dissipation per cell unit indicated that microorganisms under balanced fertilizer treatments had more efficient metabolism, while decreased microbial activity under nutrient-deficiency treatments was firstly due to soil available P, followed by N and K (P < 0.05). In addition, microbial growth in soils under P-deficiency fertilization was stimulated by adding available R while the lower growth rate, less peak heat, and longer peak time all indicated the low activity of soil microorganisms. We emphasize the importance of balanced fertilization, as well as the role of available P, in maintaining and promoting soil microbial activity. (C) 2009 Elsevier Ltd. All rights reserved.
收录类别	SCI
WOS关键词	BRAZILIAN SOILS ; BIOMASS ; CALORIMETRY ; COMMUNITY ; GLUCOSE ; CARBON ; CROPS
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000271047800010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558803
专题	南京土壤研究所
通讯作者	Yu, Ziniu
作者单位	1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 3.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China 4.China Univ Geosci, MOE Biogeol & Environm Geol Lab, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Shixue,Hu, Junli,Chen, Ke,et al. Soil microbial activity measured by microcalorimetry in response to long-term fertilization regimes and available phosphorous on heat evolution[J]. SOIL BIOLOGY & BIOCHEMISTRY,2009,41(10):2094-2099.
APA	Zheng, Shixue,Hu, Junli,Chen, Ke,Yao, Jun,Yu, Ziniu,&Lin, Xiangui.(2009).Soil microbial activity measured by microcalorimetry in response to long-term fertilization regimes and available phosphorous on heat evolution.SOIL BIOLOGY & BIOCHEMISTRY,41(10),2094-2099.
MLA	Zheng, Shixue,et al."Soil microbial activity measured by microcalorimetry in response to long-term fertilization regimes and available phosphorous on heat evolution".SOIL BIOLOGY & BIOCHEMISTRY 41.10(2009):2094-2099.

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