Dynamics of soil microbial biomass carbon, mineral nitrogen and nitrogen mineralization in long-term field experiment, Northern China

文献类型： 外文期刊

第一作者： Hu, Cheng

作者： Hu, Cheng;Cao, Zhi Ping;Dawson, Richard

作者机构：

关键词： microbial biomass carbon;mineral nitrogen;nitrogen mineralization

期刊名称：JOURNAL OF SUSTAINABLE AGRICULTURE （ 影响因子：1.372； 五年影响因子：0.893 ）

ISSN： 1044-0046

年卷期： 2008 年 32 卷 2 期

页码：

收录情况： SCI

摘要： A long-term field soil fertility and crop yield experiment was carried out at China Agricultural University's Qu-Zhou experiment station in Hebei Province, Northern China. The station is in a continental temperate monsoon tone, and the climate in the region is warm, sub-humid, and consists of summer rainfall and dry-cold winters. The soil at study site is an improved silt fluvo-aquic soil. Three different farming systems were established in 1993: traditional compost (TC), chemical fertilizer (CF), and a control (CK). Soil samples were collected in October 2004 before the fertilizer application, during the crop growing stage (November 2004; March, April, May 2005) and at harvest (June 2005). The soil microbial biomass carbon (MBC), mineral nitrogen concentration, and nitrogen mineralization rate were evaluated. The results showed that soil MBC, mineral nitrogen concentration, and nitrogen mineralization rate were higher in TC and CF than in CK. The microbial biomass C in TC were significantly higher compared with CF and CK; although only slightly higher in CF compared with CK. Mineral nitrogen (NH(4)-N and NO(3)-N) concentration on 14 October 2004 and 25 May and 10 June 2005 among treatments followed the order: CK < CF < TC. Nevertheless. the order in November 2004 and March, April, and 10 May 2005 among treatments followed: CK < TC < CF. NH(4)-N concentration was always lower than NO(3)-N concentration. Significant differences in the nitrogen mineralization rate were observed between treatments and incubation dates. Nitrogen mineralization rate among treatments followed the order: CK < CF < TC. Nitrogen mineralization rate was positively correlated with microbial biomass carbon and wheat yield. Microbial biomass carbon was a good indicator for changes of soil fertility and quality.

分类号：

  • 相关文献

[1]Effects of nitrogen fertilizer on the composition of maize roots and their decomposition at different soil depths. Cai, Miao,Dong, Yanjie,Chen, Zhujun,Zhou, Jianbin,Cai, Miao,Chen, Zhujun,Zhou, Jianbin,Dong, Yanjie,Kalbitz, Karsten.

[2]Nitrate-Nitrogen Dynamics and Nitrogen Budgets in Rice-Wheat Rotations in Taihu Lake Region, China. Zhang Jun-Hua,Liu Jian-Li,Zhang Jia-Bao,Cheng Ya-Nan,Wang Wei-Peng,Zhang Jun-Hua,Cheng Ya-Nan,Wang Wei-Peng. 2013

[3]Nitrogen Mineralization Characteristics of Disturbed and Undisturbed Soil Samples for Four Main Soil Types on the Loess Plateau. Zhao, Kun,Li, Shi-Qing,Zhao, Kun,Lu, Hong-Ling. 2013

[4]Integrated application of February Orchid (Orychophragmus violaceus) as green manure with chemical fertilizer for improving grain yield and reducing nitrogen losses in spring maize system in northern China. Bai Jin-shun,Cao Wei-dong,Zeng Nao-hua,Gao Song-juan,Cao Wei-dong,Xiong Jing,Katsuyoshi, Shimizu. 2015

[5]Nitrification dynamics in a soil after addition of different fumigants. Wang, Qiuxia,Mao, Liangang,Ma, Taotao,Li, Yuan,Guo, Meixia,Cao, Aocheng. 2013

[6]Quantification of the effects of various soil fumigation treatments on nitrogen mineralization and nitrification in laboratory incubation and field studies. Wang, Qiuxia,Mao, Liangang,Li, Wei,Xie, Hongwei,Guo, Meixia,Cao, Aocheng.

[7]Effects of soil salinity on rhizosphere soil microbes in transgenic Bt cotton fields. Luo Jun-yu,Cui Jin-jie,Zhou Zhi-guo,Zhang Shuai,Zhu Xiang-zhen,Lu Li-min,Wang Chun-yi,Li Chun-hua,Cui Jin-jie,Zhou Zhi-guo. 2017

[8]Effects of the consecutive cultivation and periodic residue incorporation of Bacillus thuringiensis (Bt) cotton on soil microbe-mediated enzymatic properties. Zhenhua Chen,Chen, Lijun,Kai Wei,Lijun Chen,Zhijie Wu,Junyu Luo,Jinjie Cui.

[9]Differential Responses of Soil Microbial Community to Four-Decade Long Grazing and Cultivation in a Semi-Arid Grassland. He, Yating,Qi, Yuchun,Dong, Yunshe,Liu, Xinchao,Sun, Liangjie,He, Yating,Xu, Minggang,He, Xinhua,Li, Jianwei,He, Yating. 2017

[10]Effects on Soil Organic Carbon and Microbial Biomass Carbon of Different Tillage. Yang, Zhichen,Li, Hong,Bai, Jinshun. 2015

[11]Influence of cultivation and fertilization on total organic carbon and carbon fractions in soils from the Loess Plateau of China. Wu, TY,Schoenau, JJ,Li, FM,Qian, PY,Malhi, SS,Shi, YC,Xu, FL. 2004

[12]Buried straw layer plus plastic mulching improves soil organic carbon fractions in an arid saline soil from Northwest China. Huo, Long,Pang, Huancheng,Zhao, Yonggan,Wang, Jing,Lu, Chuang,Li, Yuyi.

作者其他论文 更多>>

微信小程序