Results 101 to 110 of about 5,111 (218)

Biochar-based urea increases soil methane uptake in a subtropical forest

Geoderma
Novel biochar-based fertilizers, produced by combining biochar particles with chemical fertilizers, have strong potential to enrich soil with carbon (C) and nitrogen (N), and to increase plant productivity.
Jiashu Zhou, Caixian Tang, Yakov Kuzyakov, Tony Vancov, Yunying Fang, Xinzhang Song, Xuhui Zhou, Zhenhui Jiang, Tida Ge, Lin Xu, Yanjiang Cai, Bing Yu, Jason C. White, Baojing Gu, Xinli Chen, Philippe Ciais, Yongfu Li   +16 more
doaj   +1 more source

Effects of Fallow Season Water and Straw Management on Methane Emissions and Associated Microorganisms

Agronomy
The effects of fallow season water and straw management on methane (CH4) emissions during the fallow season and the subsequent rice-growing season are rarely reported, and the underlying microbial mechanisms remain unclear.
Wei Wang, Qiping Chen, Hexian Huang, Yonghong Xie   +3 more
doaj   +1 more source

Nitric Oxide Dismutase (nod) Genes as a Functional Marker for the Diversity and Phylogeny of Methane-Driven Oxygenic Denitrifiers

Frontiers in Microbiology, 2019
Oxygenic denitrification represents a new route in reductive nitrogen turnover which differs from canonical denitrification in how nitric oxide (NO) is transformed into dinitrogen gas.
Baoli Zhu, Baoli Zhu, Baoli Zhu, Jiaqi Wang, Lauren M. Bradford, Katharina Ettwig, Baolan Hu, Tillmann Lueders, Tillmann Lueders   +8 more
doaj   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Rotary Tillage Plus Mechanical Transplanting Practices Increased Rice Yields with Lower CH₄ Emission in a Single Cropping Rice System

Agriculture
As the main contributor to greenhouse gas (GHG) in paddy soil, information on methane (CH4) emission characteristics under different tillage and cultivation practices are limited.
Linlin Shi, Linlin Dong, Jun Zhang, Jing Huang, Yuan Shen, Yueyue Tao, Haihou Wang, Changying Lu   +7 more
doaj   +1 more source

Detection of Bacteria in Environmental Samples by Direct PCR Without DNA Extraction

BioTechniques, 2001
Cultured cells and environmental samples were used directly in PCRs without the isolation of DNA. Serial dilution was used to eliminate the inhibitory effect of materials in natural samples.
Kimberly A. Fode-Vaughan, Charles F. Wimpee, Charles C. Remsen, Mary Lynne Perille Collins   +3 more
doaj   +1 more source

Community analysis of betaproteobacterial ammonia-oxidizing bacteria using the amoCAB operon [PDF]

, 2009
The genes and intergenic regions of the amoCAB operon were analyzed to establish their potential as molecular markers for analyzing ammonia-oxidizing betaproteobacterial (beta-AOB) communities.
Johannes F. Imhoff, Karl-Paul Witzel, Ok-Sun Kim, Pilar Junier, Tae-Seok Ahn, Thomas Junier   +5 more
core   +6 more sources

Specific microbial gene abundances and soil parameters contribute to C, N, and greenhouse gas process rates after land use change in Southern Amazonian Soils

Frontiers in Microbiology, 2015
Ecological processes regulating soil carbon (C) and nitrogen (N) cycles are still poorly understood, especially in the world’s largest agricultural frontier in Southern Amazonia.
Daniel Renato Lammel, Daniel Renato Lammel, Brigitte eFeigl, Carlos C Cerri, Klaus eNüsslein   +4 more
doaj   +1 more source

The 371 deg C mechanical properties of graphite/polyimide composites [PDF]

A series of condensation polyimides based on pyromellitic dianhydride is synthesized and evaluated for potential application at 371 C. Several three-and four-ring benzenoid diamine systems containing oxygen bridging groups are investigated ...
Delvigs, P.
core   +1 more source

Soil Methanogen and Methanotroph Communities of Four Land Use Types in Dongting Lake Area: Linkages with Potential Methane Production

Agronomy
Methane (CH4) emissions are regulated by the balance between CH4 production and oxidation, which are mediated by methanogens and methanotrophs. Little is known about the key drivers of potential methane production (PMP) under different land use types in ...
Zhexuan Zhang, Dandan Gao, Wenrong Yang, Mengqiang Wang, Xunjie Liu, Jie Zhao   +5 more
doaj   +1 more source