Results 11 to 20 of about 24,940 (303)
Nitrification of Amino-Acids [PDF]
Nature, 1950 IN the reported discussion of the “Nitrogen Cycle in Nature” at the Newcastle meeting of the British Association, reference was made to Prof. J. H. Quastel's observation that “all the amino-acids studied nitrify readily with the striking exception of methionine”. The report does not mention cystine in this connexion.
O. Owen, G. W. Winsor
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Urethanes and Soil Nitrification [PDF]
Applied Microbiology, 1953 Urethanes have marked physiological activity in plants and animals. Lefevre (1939) found that phenyl urethane affects wheat germination, and subsequently Templeman and Sexton (1946) showed that a variety of urethanes suppress the germination of wheat and oats without affecting charlock.
J. H. Quastel, P. G. Scholefield
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Archaeal nitrification in the ocean [PDF]
Proceedings of the National Academy of Sciences, 2006 Marine Crenarchaeota are the most abundant single group of prokaryotes in the ocean, but their physiology and role in marine biogeochemical cycles are unknown. Recently, a member of this clade was isolated from a sea aquarium and shown to be capable of nitrification, tentatively suggesting that Crenarchaeota may play a role in the oceanic ...
Wuchter, C. +11 more
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Nitrification and growth of autotrophic nitrifying bacteria and Thaumarchaeota in the coastal North Sea [PDF]
Biogeosciences, 2013 Nitrification and the associated growth of autotrophic nitrifiers, as well as the contributions of bacteria and Thaumarchaeota to total autotrophic C-fixation by nitrifiers were investigated in the Dutch coastal North Sea from October 2007 to March 2008.
B. Veuger +4 more
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Identification of nitrification inhibition in maize to mitigate soil nitrogen loss
Plant, Soil and Environment, 2023 Nitrogen dynamics in soil produce N2O emissions. To decrease N2O emissions and conserve N, recent studies have focused on chemicals derived from root exudates that inhibit nitrification.
Firdausi Nur Azizah +3 more
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Simultaneous nitrification and de-nitrification in MBR
Water Science and Technology, 2005 Experiments have been carried out to get an understanding of the effect of DO, C/N ratio and pH on the performance of a bench scale membrane bioreactor (MBR) in simultaneous nitrification and de-nitrification. It was found that under the conditions of MLSS in the range of 8000–9000mg/L and temperature of water in the MBR of 24°C, influent COD and NH3-N
Liu Shuo +3 more
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Inhibition of Nitrification by Root Exudates and Plant Materials fromBrachiaria humidicola
پژوهشهای زراعی ایران, 2011 Nitrification inhibitors are synthetic or natural compounds highly specific in inhibiting ammonium oxidation to nitrate. Therefore, they are widely used in combination with ammonium fertilizers.
M.K Suri, M Arab, Gh Niuman
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Open Agriculture, 2016 In this study we focused on nitrification inhibition properties from tropical and subtropical plants; Acrocomia totai (palm tree) and Brachiaria humidicola (grass plant).
Souri Mohammad Kazem
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Estimating the effects of sea level rise on coupled estuarine nitrogen cycling processes through comparative network analysis [PDF]
Marine Ecology Progress Series 524: 137-154, 2013 Nitrogen (N) removal from estuaries is driven in part by sedimentary microbial processes. The processes of denitrification and anaerobic ammonium oxidation (anammox) remove N from estuaries by producing di-nitrogen gas, and each can be coupled to N recycling pathways such as nitrification and dissimilatory nitrate reduction to ammonium (DNRA ...
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