Results 31 to 40 of about 10,335 (286)
Microbiological parameters of soil set aside before and after desiccation
Plant, Soil and Environment, 2006 Herbaceous cover of luvic chernozem (seven years set aside) with legumes, perennial grasses and their mixture was desiccated by the glyphosate herbicide Roundup Biaktiv (5 l/ha at July 2003 and 4 l/ha at June 2004). 165 soil samples were collected before
M. Nováková, K. Voříšek
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Respiratory Nitrate Ammonification byShewanella oneidensisMR-1 [PDF]
Journal of Bacteriology, 2007 ABSTRACTAnaerobic cultures ofShewanella oneidensisMR-1 grown with nitrate as the sole electron acceptor exhibited sequential reduction of nitrate to nitrite and then to ammonium. Little dinitrogen and nitrous oxide were detected, and no growth occurred on nitrous oxide.
Claribel, Cruz-García +4 more
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Nitrification amplifies the decreasing trends of atmospheric oxygen and implies a larger land carbon uptake [PDF]
, 2007 [1] Atmospheric O-2 trend measurements are used to partition global oceanic and land biotic carbon sinks on a multiannual basis. The underlying principle is that a terrestrial uptake or release of CO2 is accompanied by an opposite flux of O-2.
Bopp, L +4 more
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Effect of Ammonia Pretreatment on Enzymatic Sugar Production from Corn Stover
Shipin gongye ke-ji, 2023 To make comprehensive use of maize stover, cellulase degradation of maize stover was accelerated. In this paper, maize straw was used as raw material, and reducing sugar yield was the main indicator.
Jianxun LI +5 more
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Effect of long-term changes in soil chemistry induced by road salt applications on N-transformations in roadside soils [PDF]
, 2008 Of several impacts of road salting on roadside soils, the potential disruption of the nitrogen cycle has been largely ignored. Therefore the fates of low-level ammonium-N and nitrate-N inputs to roadside soils impacted by salting over an extended period (
Cresser, M.S., Green, S.M., Machin, R.
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Frontiers in Plant Science, 2023 Interactions between soil fungi and soil environmental factors regulate soil nitrogen (N) mineralization rates on the eastern Qinghai-Tibetan Plateau.
Miaomiao Zhang +15 more
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Ammonification in air-dried tropical lowland Histosols [PDF]
Soil Biology and Biochemistry, 1981 The NH4+-N content of fresh organic soils sampled from wetland rice areas in the Philippines was 5-10 mg kg-1, and remained constant during anaerobic incubation for 8 weeks. Air dried soils contained 50-200 mg NH4+-N kg-1 before incubation began, indicating that ammonification took place during air drying; during subsequent incubation of air dried ...
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Nitrogen removal in marine environments: recent findings and future research challenges [PDF]
, 2005 Respiratory reduction of nitrate (denitrification) is recognized as the most important process converting biologically available (fixed) nitrogen to N2. In current N cycle models, a major proportion of global marine denitrification (50–70%) is assumed to
Aller, Robert Curwood +7 more
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Regulatory Mechanisms in Biosystems, 2023 The moisture-temperature regime influences the nitrogen status of the soil and the microbiological processes of the transformation of nitrogen forms. Therefore, we assumed that ongoing climate change may affect the emission of nitrous oxide N2O, which is
A. Polevoy +4 more
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Production technology of adiponitrile [PDF]
E3S Web of Conferences, 2023 This paper introduces the technical routes and characteristics of four traditional adiponitrile production processes, including acrylonitrile dimerization method, butadiene method, adipic acid catalytic ammonification method and caprolactam method, were ...
Luo Xuan +4 more
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