Results 41 to 50 of about 122,200 (387)
Molecules, 2023 Artificial intelligence technology shows the advantages of improving efficiency, reducing costs, shortening time, reducing the number of staff on site and achieving precise operations, making impressive research progress in the fields of drug discovery ...
Bojun Tan +7 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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Journal of the Royal Sanitary Institute, 1907 My special object in this paper is to direct attention to certain observations I have recently made bearing upon death of filters and grade of particles as affecting both the quality of the work done and the capital outlay involved. To effect the necessary changes it is essential that the sewage in a fine film shall be brought into intimate contact ...
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High-severity wildfire leads to multi-decadal impacts on soil biogeochemistry in mixed-conifer forests. [PDF]
, 2020 During the past century, systematic wildfire suppression has decreased fire frequency and increased fire severity in the western United States of America.
Bell C. W. +7 more
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Trace Elements and Nitrification
Nature, 1948 THE exact requirements of the nitrifying bacteria for inorganic nutrients are not yet known, though all workers on this group since Winogradsky1 have assumed that they require iron, and many workers have added traces of other metals to their media2, or used tap-water as a diluent, because of the possible trace elements it contains3.
Lees, H., Meiklejohn, J.
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Frontiers in Microbiology, 2019 The processes regulating nitrification in soils are not entirely understood. Here we provide evidence that nitrification rates in soil may be affected by complexed nitrate molecules and microbial volatile organic compounds (mVOCs) produced during ...
Santosh Ranjan Mohanty +6 more
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Development of N2O emission factors derived from nitrification of treated sewage water in rivers
Water Science and Technology, 2023 Because treated sewage water contains nitrogen compounds such as NH4-N and NO2+3-N, nitrous oxide (N2O) which is one of the greenhouse gases is generated by nitrification and denitrification reactions in rivers.
Hiroshi Yamazaki +4 more
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The effect of precipitation and application rate on dicyandiamide persistence and efficiency in two Irish grassland soils [PDF]
, 2015 peer-reviewedThe nitrification inhibitor dicyandiamide (DCD) has had variable success in reducing nitrate (NO3-) leaching and nitrous oxide (N2O) emissions from soils receiving nitrogen (N) fertilisers. Factors such as soil type, temperature and moisture
Cahalan, E. +6 more
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Complete nitrification: insights into the ecophysiology of comammox Nitrospira
Applied Microbiology and Biotechnology, 2018 Nitrification, the oxidation of ammonia via nitrite to nitrate, has been considered to be a stepwise process mediated by two distinct functional groups of microorganisms.
Hanna Koch +2 more
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Some Observations on “Nitrification” [PDF]
The Journal of Agricultural Science, 1907 It is now a well-established fact that the ammonia, which is formed in the cultivated soil by the breaking down of nitrogenous organic matter through the action of bacteria and moulds, is itself converted by oxidation into nitrates. The latter process, “nitrification“ proper, is effected in two stages by two distinct species of bacteria, the one ...
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