Results 301 to 310 of about 336,731 (345)

Cadmium inhibits carbon and nitrogen cycling through soil microbial biomass and reduces soil nitrogen availability.

Journal of Hazardous Materials
Microbial mediated carbon and nitrogen cycling response to cadmium are often observed in soil; however, a unified framework of this response has not yet been established.
Ahmed S. Elrys, Yuhong Wen, Di Feng, Rasha M. El-Mekkawy, Meng Kong, Xiaofeng Qin, Qiqian Lu, Xiaoqian Dan, Qilin Zhu, Shuirong Tang, Yanzheng Wu, Lei Meng, Jinbo Zhang   +12 more
semanticscholar   +1 more source

A comparison of methods for estimating soil microbial biomass carbon

Agriculture, Ecosystems & Environment, 1991
Abstract Soil microbial biomass is an important ecological parameter because it acts as a source-sink in nutrient cycling processes and regulates many organic matter transformations. Appropriate methodologies must be developed to measure the microbial pools in natural and man-managed (agroecosystems) systems. Our objective was to compare and contrast
D. Jordan, M.H. Beare
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Turnover of “new” and “old” carbon in soil microbial biomass

Microbiology, 2013
The contributions of “new” carbon coming from plants with the C4-type of photosynthesis (maize) and “old” carbon from soil organic matter (SOM) formed under C3 vegetation as carbon sources for microorganisms was determined. Soil samples were taken from the plots of field experiments on Chernozem and Phaeozem.
I. V. Yevdokimov, A. A. Larionova, A. F. Stulin   +2 more
openaire   +1 more source

Influence of Salt Content on Soil Microbial Biomass Carbon

2016
Soil salinization has become a global issue. Saline and alkaline arable land was taken as research object in this paper and four salt gradients were set (S1: 0.1%; S2: 0.5%; S3: 0.9%; and S4: 1.3%). Through the addition of different substrates (CK: no addition of substrate; N: addition of nitrogen source; C: addition of glucose, C+N: addition of ...
ZHENG, Huanqiang, QU, Fanzhu, RONG, Kun, LI, Xueping, ZHENG, Huanqiang, QU, Fanzhu, RONG, Kun, LI, Xueping   +7 more
openaire   +1 more source

Significance of microbial biomass for carbon and nitrogen mineralization in soil

Zeitschrift für Pflanzenernährung und Bodenkunde, 1994
AbstractC and N mineralization was quantified in an incubation experiment with two samples containing different amounts of microbial biomass. The samples from two layers (0–20, 20–30 cm) of an arable luvisol from loess were fertilized with nitrate, mixed with14C‐labelled straw and incubated for 52 days at different O2levels. Decreasing O2concentrations
openaire   +1 more source

Microbial Biomass and Carbon Mineralization in Agricultural Soils as Affected by Pesticide Addition

Bulletin of Environmental Contamination and Toxicology, 2012
A laboratory study was conducted with four pesticides, viz. a fungicide (carbendazim), two insecticides (chlorpyrifos and cartap hydrochloride) and an herbicide (pretilachlor) applied to a sandy clay loam soil at a field rate to determine their effect on microbial biomass carbon (MBC) and carbon mineralization (C(min)).
Anjani, Kumar, A K, Nayak, Arvind K, Shukla, B B, Panda, R, Raja, Mohammad, Shahid, Rahul, Tripathi, Sangita, Mohanty, P C, Rath   +8 more
openaire   +2 more sources

Turnover of gram-negative bacterial biomass-derived carbon through the microbial food web of an agricultural soil

, 2021
Soil organic matter (SOM) represents an important terrestrial carbon reservoir in the biosphere, and microorganisms have been recognized as significant material contributors to the formation of SOM.
Tiantian Zheng, A. Miltner, C. Liang, K. Nowak, M. Kästner   +4 more
semanticscholar   +1 more source

Microbial stoichiometry overrides biomass as a regulator of soil carbon and nitrogen cycling

Ecology, 2015
Understanding the role of soil microbial communities in coupled carbon and nitrogen cycles has become an area of great interest as we strive to understand how global change will influence ecosystem function. In this endeavor, microbially explicit decomposition models are being adopted because they include microbial stoichiometry‐ and biomass‐mediated ...
Robert W, Buchkowski, Oswald J, Schmitz, Mark A, Bradford   +2 more
openaire   +2 more sources

Soil Microbial Biomass Size and Nitrogen Availability Regulate the Incorporation of Residue Carbon into Dissolved Organic Pool and Microbial Biomass

Soil Science Society of America Journal, 2019
Microbial biomass (MB) plays a critical role in residue decomposition and soil organic matter (SOM) turnover. We investigated the effects of the initial size of soil MB pool and nitrogen (N) availability on the incorporation of ryegrass residue carbon (C) into microbial biomass C (MBC) and dissolved organic C ...
Lu‐Jun Li, Rongzhong Ye, Xia Zhu‐Barker, William R. Horwath   +3 more
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Organic Amendment Effects on Microbial Population and Microbial Biomass Carbon in the Rhizosphere Soil of Soybean

Communications in Soil Science and Plant Analysis, 2012
The aim of the study was to determine microbial populations and microbial biomass carbon in the rhizosphere soil of soybean cultivated under different organic treatments: plant compost (PC), vermicompost (VER), farmyard manure (FYM), and integrated plant compost (IPC).
Bibhuti B. Das, M. S. Dkhar
openaire   +1 more source